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Document and Entity Information (USD  $) In Billions, except Share data	12 Months Ended
Dec. 31, 2010	Jan. 31, 2011	Jun. 27, 2010
Document and Entity Information
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec 31, 2010
Document Fiscal Year Focus	2010
Document Fiscal Period Focus	FY
Trading Symbol	LMT
Entity Registrant Name	LOCKHEED MARTIN CORP
Entity Central Index Key	0000936468
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		349,855,179
Entity Public Float			$ 28.1

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Consolidated Statements of Earnings (USD  $) In Millions, except Per Share data	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Net Sales
Products	$ 36,448		$ 35,763		$ 34,091
Services	9,355		8,232		7,281
Total Net Sales	45,803		43,995		41,372
Cost of Sales
Products	(32,655)		(31,756)		(30,220)
Services	(8,350)		(7,376)		(6,517)
Voluntary Executive Separation and Other Charges	(220)
Other Unallocated Corporate Costs	(742)		(671)		(61)
Total Cost of Sales	(41,967)		(39,803)		(36,798)
Gross Profit	3,836		4,192		4,574
Other Income, Net	261		223		475
Operating Profit	4,097	[1]	4,415	[1]	5,049	[1]
Interest Expense	(345)		(308)		(332)
Other Non-Operating Income (Expense), Net	74		123		(91)
Earnings from Continuing Operations before Income Taxes	3,826		4,230		4,626
Income Tax Expense	(1,181)		(1,231)		(1,459)
Earnings from Continuing Operations	2,645		2,999		3,167
Earnings from Discontinued Operations	281		25		50
Net Earnings	$ 2,926		$ 3,024		$ 3,217
Basic
Continuing Operations	$ 7.26		$ 7.79		$ 7.92
Discontinued Operations	$ 0.77		$ 0.07		$ 0.13
Basic Earnings Per Common Share	$ 8.03		$ 7.86		$ 8.05
Diluted
Continuing Operations	$ 7.18		$ 7.71		$ 7.74
Discontinued Operations	$ 0.76		$ 0.07		$ 0.12
Diluted Earnings Per Common Share	$ 7.94		$ 7.78		$ 7.86
[1]	(a) Operating profit included equity in net earnings (losses) of equity investees as follows: (In millions) 2010 2009 2008 Aeronautics  $ 7  $ 9  $ 21 Electronic Systems 50 53 43 Space Systems 259 218 224 Total business segments 316 280 288 Corporate activities (4 ) (2 ) — Total  $ 312  $ 278  $ 288

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Consolidated Balance Sheets (USD  $) In Millions	Dec. 31, 2010	Dec. 31, 2009
Assets
Cash and Cash Equivalents	$ 2,261		$ 2,391
Short-term Investments	516		346
Receivables	5,757		6,061
Inventories	2,378		2,183
Deferred Income Taxes	1,038		815
Assets of Discontinued Operation Held for Sale	399
Other Current Assets	502		681
Total Current Assets	12,851		12,477
Property, Plant, and Equipment, Net	4,554		4,520
Goodwill	9,605		9,948
Deferred Income Taxes	3,482		3,779
Other Assets	4,575		4,387
Total Assets	35,067	[1]	35,111	[1]
Liabilities and Stockholders' Equity
Accounts Payable	1,627		2,030
Customer Advances and Amounts in Excess of Costs Incurred	5,719		5,049
Salaries, Benefits and Payroll Taxes	1,870		1,648
Liabilities of Discontinued Operation Held for Sale	204
Other Current Liabilities	1,737		1,976
Total Current Liabilities	11,157		10,703
Long-term Debt, Net	5,019		5,052
Accrued Pension Liabilities	10,607		10,823
Other Postretirement Benefit Liabilities	1,213		1,308
Other Liabilities	3,363		3,096
Total Liabilities	31,359		30,982
Stockholders' Equity
Common Stock,  $1 Par Value Per Share	346		373
Additional Paid-in Capital	0
Retained Earnings	12,372		12,351
Accumulated Other Comprehensive Loss	(9,010)		(8,595)
Total Stockholders' Equity	3,708		4,129
Total Liabilities and Stockholders' Equity	$ 35,067		$ 35,111
[1]	We have no significant long-lived assets located in foreign countries.

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Consolidated Balance Sheets (Parenthetical) (USD  $)	Dec. 31, 2010	Dec. 31, 2009
Consolidated Balance Sheets
Common Stock, Par Value	$ 1	$ 1

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Consolidated Statements of Cash Flows (USD  $) In Millions	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Operating Activities
Net earnings	$ 2,926	$ 3,024	$ 3,217
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization of plant and equipment	749	750	727
Amortization of purchased intangibles	92	104	118
Stock-based compensation	168	154	155
Deferred income taxes	576	542	72
Net adjustments from planned sale of PAE	(73)
Gain on sale of EIG, net of tax	(184)
Voluntary executive separation and other charges (credits)	220		(193)
Changes in assets and liabilities:
Receivables	(15)	(719)	(333)
Inventories	(227)	(233)	(183)
Accounts payable	(364)	(21)	(141)
Customer advances and amounts in excess of costs incurred	685	482	313
Postretirement benefit plans	(1,027)	(394)	279
Income taxes	60	(289)	87
Other, net	(39)	(227)	303
Net cash provided by operating activities	3,547	3,173	4,421
Investing Activities
Expenditures for property, plant and equipment	(820)	(852)	(926)
Net proceeds from sale of EIG	798
Acquisitions of businesses / investments in affiliates	(148)	(435)	(233)
Net cash used for short-term investment transactions	(171)	(279)	272
Other	22	48	(20)
Net cash used for investing activities	(319)	(1,518)	(907)
Financing Activities
Repurchases of common stock	(2,420)	(1,851)	(2,931)
Common stock dividends	(969)	(908)	(737)
Issuance of long-term debt, net of related costs		1,464	491
Repayments of long-term debt		(242)	(1,103)
Other, net	26	61	342
Net cash used for financing activities	(3,363)	(1,476)	(3,938)
Effect of exchange rate changes on cash and cash equivalents	5	44	(56)
Net increase (decrease) in cash and cash equivalents	(130)	223	(480)
Cash and cash equivalents at beginning of year	2,391	2,168	2,648
Cash and Cash Equivalents at end of year	$ 2,261	$ 2,391	$ 2,168

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Consolidated Statements of Stockholders' Equity (USD  $) In Millions	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income Loss	Comprehensive Income (Loss)	Total
Balance at Dec. 31, 2007	$ 409		$ 11,247	$ (1,851)		$ 9,805
Net earnings			3,217		3,217	3,217
Repurchases of common stock	(29)	(796)	(2,106)			(2,931)
Common stock dividends declared in 2008, 2009 and 2010 ( $1.83,  $2.34 and  $2.64 per share, respectively)			(737)			(737)
Stock-based awards and ESOP activity	8	738				746
Conversion of debentures	5	58				63
Postretirement benefit plans:
Unrecognized amounts in 2008, 2009 and 2010, net of tax benefit of  $4,011 million,  $121 million and  $531 million respectively				(7,299)	(7,299)	(7,299)
Reclassification adjustment for recognition of prior period amounts in 2008, 2009 and 2010, net of tax of  $25 million,  $158 million and  $304 million respectively				46	46	46
Other, net				(45)	(45)	(45)
Balance at Dec. 31, 2008	393		11,621	(9,149)	(4,081)	2,865
Net earnings			3,024		3,024	3,024
Repurchases of common stock	(25)	(440)	(1,386)			(1,851)
Common stock dividends declared in 2008, 2009 and 2010 ( $1.83,  $2.34 and  $2.64 per share, respectively)			(908)			(908)
Stock-based awards and ESOP activity	5	440				445
Postretirement benefit plans:
Unrecognized amounts in 2008, 2009 and 2010, net of tax benefit of  $4,011 million,  $121 million and  $531 million respectively				214	214	214
Reclassification adjustment for recognition of prior period amounts in 2008, 2009 and 2010, net of tax of  $25 million,  $158 million and  $304 million respectively				281	281	281
Other, net				59	59	59
Balance at Dec. 31, 2009	373		12,351	(8,595)	3,578	4,129
Net earnings			2,926		2,926	2,926
Repurchases of common stock	(33)	(514)	(1,936)			(2,483)
Common stock dividends declared in 2008, 2009 and 2010 ( $1.83,  $2.34 and  $2.64 per share, respectively)			(969)			(969)
Stock-based awards and ESOP activity	6	514				520
Postretirement benefit plans:
Unrecognized amounts in 2008, 2009 and 2010, net of tax benefit of  $4,011 million,  $121 million and  $531 million respectively				(983)	(983)	(983)
Reclassification adjustment for recognition of prior period amounts in 2008, 2009 and 2010, net of tax of  $25 million,  $158 million and  $304 million respectively				553	553	553
Other, net				15	15	15
Balance at Dec. 31, 2010	$ 346		$ 12,372	$ (9,010)	$ 2,511	$ 3,708

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Consolidated Statements of Stockholders' Equity (Parenthetical) (USD  $) In Millions, except Per Share data	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Consolidated Statements of Stockholders' Equity
Common stock dividends declared, per share	$ 2.64	$ 2.34	$ 1.83
Unrecognized amounts, tax benefit	$ 531	$ 121	$ 4,011
Reclassification adjustment for recognition of prior period amounts, tax	$ 304	$ 158	$ 25

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Significant Accounting Policies	12 Months Ended
Dec. 31, 2010
Significant Accounting Policies
Significant Accounting Policies	Note 1 – Significant Accounting Policies Organization – Lockheed Martin Corporation is a global security company that principally is engaged in the research, design, development, manufacture, integration, and sustainment of advanced technology systems and products. We also provide a broad range of management, engineering, technical, scientific, logistic, and information services. We serve both domestic and international customers with products and services that have defense, civil, and commercial applications, with our principal customers being agencies of the U.S. Government. Basis of consolidation and classifications – Our consolidated financial statements include the accounts of subsidiaries we control and other entities where we are the primary beneficiary. We eliminate intercompany balances and transactions in consolidation. Our receivables, inventories, customer advances, and certain amounts in other current liabilities primarily are attributable to long-term contracts or programs in progress for which the related operating cycles are longer than one year. In accordance with industry practice, we include these items in Current Assets and Current Liabilities. We have reclassified certain amounts for prior years to conform to the 2010 presentation. Use of estimates – We prepare our consolidated financial statements in conformity with U.S. generally accepted accounting principles (GAAP). In doing so, we are required to make estimates and assumptions that affect the reported amounts in the financial statements and accompanying notes. Our actual results may differ from those estimates. Receivables – Receivables include amounts billed and currently due from customers, and unbilled costs and accrued profits primarily related to revenues on long-term contracts that have been recognized for accounting purposes but not yet billed to customers. As we recognize those revenues, we reflect appropriate amounts of customer advances, performance-based payments, and progress payments as an offset to the related receivables balance. Inventories – We record inventories at the lower of cost or estimated net realizable value. Costs on long-term contracts and programs in progress represent recoverable costs incurred for production or contract-specific facilities and equipment, allocable operating overhead, advances to suppliers and, in the case of contracts with the U.S. Government, research and development and general and administrative expenses. Pursuant to contract provisions, agencies of the U.S. Government and certain other customers have title to, or a security interest in, inventories related to such contracts as a result of advances, performance-based payments, and progress payments. We reflect those advances and payments as an offset against the related inventory balances. We expense general and administrative costs related to products and services provided essentially under commercial terms and conditions as incurred. We determine the costs of other product and supply inventories by the first-in first-out or average cost methods. Property, plant and equipment – We include property, plant, and equipment on our Balance Sheets principally at cost. We provide for depreciation and amortization on plant and equipment generally using accelerated methods during the first half of the estimated useful lives of the assets, and the straight-line method thereafter. The estimated useful lives of our plant and equipment generally range from 10 to 40 years for buildings and five to 15 years for machinery and equipment. We review the carrying values of long-lived assets for impairment if events or changes in the facts and circumstances indicate that their carrying values may not be recoverable. We assess impairment by comparing the estimated undiscounted future cash flows of the related asset to its carrying value. If an asset is determined to be impaired, we recognize an impairment charge in the current period for the difference between the fair value of the asset and its carrying value. Goodwill – We evaluate goodwill for potential impairment annually on October 1, or if impairment indicators are present. Our evaluation includes comparing the fair value of a reporting unit, using a discounted cash flow methodology, to its carrying value including goodwill recorded by the reporting unit. If the carrying value exceeds the fair value, we measure impairment by comparing the derived fair value of goodwill to its carrying value, and any impairment determined is recorded in the current period. We define reporting units at the business segment level or one level below the business segment. The decrease in goodwill from 2009 to 2010 primarily was due to the sale of Enterprise Integration Group and the reclassification of Pacific Architects and Engineers, Inc.'s assets and liabilities to discontinued operations at December 31, 2010 (see Note 2). Capitalized software – We capitalize certain direct costs associated with the development or purchase of internal-use software. Expenditures are included in operating activities on our Statements of Cash Flows. The amounts capitalized are included in other assets on our Balance Sheets and amortized on a straight-line basis over the estimated useful life of the resulting software, which ranges from two to six years. We amortize capitalized internal-use software beginning when the asset is substantially ready for use. As of December 31, 2010 and 2009, capitalized software totaled  $899 million and  $887 million, net of accumulated amortization of  $1,097 million and  $948 million. Amortization expense related to capitalized software was  $149 million in 2010,  $152 million in 2009, and  $135 million in 2008. Customer advances and amounts in excess of cost incurred – We receive advances, performance-based payments, and progress payments from customers that may exceed costs incurred on certain contracts, including contracts with agencies of the U.S. Government. We classify such advances, other than those reflected as a reduction of receivables or inventories as discussed above, as Current Liabilities. Postretirement benefit plans – Most of our employees are covered by defined benefit pension plans, and we provide certain health care and life insurance benefits to eligible retirees (collectively, postretirement benefit plans). GAAP requires that the amounts we record related to our plans be computed using actuarial valuations that are based in part on certain key assumptions we make, including the discount rate, the expected long-term rate of return on plan assets, the rates of increase in future compensation levels, and health care cost trend rates, each as appropriate based on the nature of the plans. We recognize on a plan-by-plan basis the funded status of our postretirement benefit plans under GAAP as either an asset or liability on our Balance Sheets, with a corresponding adjustment to accumulated other comprehensive loss, net of tax, in stockholders' equity. The funded status is measured as the difference between the fair value of the plan's assets and the benefit obligation of the plan. Environmental matters – We record a liability for environmental matters when it is probable that a liability has been incurred and the amount can be reasonably estimated. The amount of liability recorded is based on our best estimate of the costs to be incurred for remediation at a particular site within a range of estimates for that site or, in cases where no amount within the range is better than another, we record an amount at the low end of the range. We do not discount the recorded liabilities, as the amount and timing of future cash payments are not fixed or cannot be reliably determined. We expect to include a substantial portion of environmental costs in net sales and cost of sales in future periods pursuant to U.S. Government agreement or regulation. At the time a liability is recorded for future environmental costs, we record an asset for estimated future recovery considered probable through the pricing of products and services to agencies of the U.S. Government. We include the portion of those costs expected to be allocated to our non-U.S. Government contracts or that is determined to be unallowable for pricing under U.S. Government contracts in cost of sales at the time the liability is established. Sales and earnings – We record net sales and estimated profits on a percentage-of-completion (POC) basis for cost-reimbursable and fixed-price design, development, and production (DD&P) contracts. Revenue is recorded on time-and-materials contracts as the work is performed based on agreed-upon hourly rates and allowable costs. The POC method for DD&P contracts depends on the nature of the products provided under the contract. For example, for contracts that require us to perform a significant level of development effort in comparison to the total value of the contract and/or to deliver less than substantial quantities of similar items, sales are recorded using the cost-to-cost method to measure progress toward completion. Under the cost-to-cost method of accounting, we recognize sales and an estimated profit as costs are incurred based on the proportion that the incurred costs bear to total estimated costs. For contracts that require us to provide a substantial number of similar items without a significant level of development effort, we record sales and profit on a percentage-of-completion basis using units-of-delivery as the basis to measure progress toward completing the contract. When adjustments in estimated contract revenues or estimated costs at completion are required on DD&P contracts, any changes from prior estimates are recognized in the current period for the inception-to-date effect of the changes. When estimates of total costs to be incurred on a contract exceed total estimates of revenue to be earned, a provision for the entire loss on the contract is recorded in the period in which the loss is determined. Award fees and incentives, as well as penalties related to contract performance, are considered in estimating sales and profit rates on DD&P contracts. We consider estimates of award fees in estimating sales and profit rates based on past experience and anticipated performance. We record incentives or penalties when there is sufficient information to assess anticipated contract performance. We do not recognize incentive provisions that increase or decrease earnings based solely on a single significant event until the event occurs. We only include amounts representing contract change orders, claims, or other items in contract value when they can be reliably estimated and realization is probable. For cost-reimbursable contracts for services that provide for award and incentive fees, we record net sales as services are performed, except for the award and incentive fees. Award and incentive fees are recorded when they are fixed or determinable, generally at the date the amount is communicated to us by the customer. This approach results in the recognition of such fees at contractual intervals (typically every six months) throughout the contract and is dependent on the customer's processes for notification of awards and issuance of formal notifications. Under a fixed-price service contract, we get paid a predetermined fixed amount for a specified scope of work and generally have full responsibility for the costs associated with the contract and the resulting profit or loss. We record net sales under fixed-price service contracts on a straight-line basis over the period of contract performance, unless evidence suggests that net sales are earned or the obligations are fulfilled in a different pattern. Costs for all service contracts are expensed as incurred. Change in Accounting Principle – Effective January 1, 2011, we changed our methodology for recognizing net sales for service contracts with the U.S. Government. We will recognize sales on those contracts using the POC method similar to our DD&P contracts as described above. As such, we expect that approximately 95% of our consolidated net sales will be recognized using the POC method. We believe the POC method is preferable, as consistent revenue recognition application across all contracts with the U.S. Government better reflects the underlying economics of those contracts and aligns our financial reporting with others in our industry. Beginning with our first quarter 2011 financial statements, all prior periods presented will be retrospectively adjusted to apply the new method of accounting. The effect of this change is expected to be less than one percent of net sales and segment operating profit in 2011, and was not material to prior periods. Research and development and similar costs – Except for certain arrangements described below, we account for independent research and development costs as part of the general and administrative costs that are allocated among all of our contracts and programs in progress under U.S. Government contractual arrangements. Costs for product development initiatives we sponsor that are not otherwise allocable are charged to expense when incurred. Under some arrangements in which a customer shares in product development costs, our portion of unreimbursed costs is expensed as incurred. Independent research and development costs charged to cost of sales totaled  $638 million in 2010,  $724 million in 2009, and  $698 million in 2008. Costs we incur under customer-sponsored research and development programs pursuant to contracts are included in net sales and cost of sales. Investments in marketable securities – Investments in marketable securities consist of debt and equity securities and are classified as either available-for-sale securities or trading securities. If classified as available-for-sale securities, unrealized gains and losses are reflected net of income taxes in accumulated other comprehensive loss on the Statements of Stockholders' Equity. If classified as trading securities, unrealized gains and losses are recorded in other non-operating income (expense), net on the Statements of Earnings. If declines in the value of available-for-sale securities are determined to be other than temporary, a loss is recorded in earnings in the current period. We make such determinations by considering, among other factors, the length of time the fair value of the investment has been less than the carrying value, future business prospects for the investee, and information regarding market and industry trends for the investee's business, if available. For purposes of computing realized gains and losses on marketable securities, we determine cost on a specific identification basis. Available-for-sale securities are recorded at fair value and classified as short-term investments on the Balance Sheets. Our available-for-sale securities as of December 31, 2010 and 2009 consisted of U.S. Treasury securities with a fair value of  $502 million and  $300 million, and corporate debt securities of  $14 million and  $46 million. The cost basis of these securities was not materially different from their respective fair value in either year. Substantially all of our available-for-sale securities are contractually scheduled to mature in 2011. As of December 31, 2010 and 2009, the fair value of our trading securities totaled  $843 million and  $757 million and was included in other assets on the Balance Sheets. Our trading securities are held in a Rabbi Trust, which includes investments to fund certain of our nonqualified deferred compensation plans. Net gains (losses) on marketable securities in 2010, 2009, and 2008 were  $56 million,  $110 million, and  $(158) million and were included in other non-operating income (expense), net on the Statements of Earnings. Included in these amounts are net unrealized gains (losses) on trading securities of  $24 million in 2010,  $115 million in 2009, and  $(98) million in 2008. Equity method investments – Investments where we have the ability to exercise significant influence over the investee are accounted for under the equity method of accounting and are included in other assets on the Balance Sheets. Significant influence typically exists if we have a 20% to 50% ownership interest in the investee. Under this method of accounting, our share of the net earnings or losses of the investee is included in operating profit in other income, net since the activities of the investee are closely aligned with the operations of the business segment holding the investment. We evaluate our equity method investments for impairment whenever events or changes in circumstances indicate that the carrying amounts of such investments may not be recoverable. If a decline in the value of an equity method investment is determined to be other than temporary, a loss is recorded in earnings in the current period. As of December 31, 2010 and 2009, our equity method investments totaled  $671 million and  $524 million and were included in other assets on the Balance Sheets. Our equity in net earnings related to these investments was  $312 million in 2010,  $278 million in 2009, and  $288 million in 2008.   Derivative financial instruments – We use derivative financial instruments to manage our exposure to fluctuations in foreign currency exchange rates. Foreign currency exchange contracts are entered into to manage the foreign currency exchange rate risk of forecasted foreign currency denominated cash receipts and cash payments. The majority of our foreign currency exchange contracts are designated as cash flow hedges. We also may use derivative financial instruments to manage our exposure to changes in interest rates. Our financial instruments that are subject to interest rate risk principally include fixed rate long-term debt. We do not hold or issue derivative financial instruments for trading or speculative purposes. We record derivatives at their fair value. The classification of gains and losses resulting from changes in the fair values of derivatives is dependent on our intended use of the derivative and its resulting designation. Adjustments to reflect changes in fair values of derivatives attributable to the effective portion of hedges that we consider highly effective hedges are either reflected in earnings and largely offset by corresponding adjustments to the hedged items, or reflected net of income taxes in accumulated other comprehensive loss until the hedged transaction is recognized in earnings. Changes in the fair value of the derivatives that are attributable to the ineffective portion of the hedges, or of derivatives that are not considered to be highly effective hedges, if any, are immediately recognized in earnings. The aggregate notional amount of the outstanding foreign currency exchange contracts at December 31, 2010 and 2009 was  $2.2 billion and  $1.9 billion. There were no interest rate derivatives outstanding at December 31, 2010 and 2009. The effect of our derivative instruments on our Statements of Earnings for the years ended December 31, 2010, 2009, and 2008, and on our Balance Sheets as of December 31, 2010 and 2009 was not material. See Note 15 for further discussion on the fair value measurements related to our derivative instruments. Stock-based compensation – We recognize compensation cost related to all share-based payments (stock options and restricted stock units) based on their estimated fair value at the date of grant. Income taxes – We periodically assess our tax filing exposures related to periods that are open to examination. Based on the latest available information, we evaluate tax positions to determine whether the position will more likely than not be sustained upon examination by the Internal Revenue Service (IRS). If we determine that the tax position is more likely than not to be sustained, we record the largest amount of benefit that is more likely than not to be realized when the tax position is settled. If we cannot reach that determination, no benefit is recorded. We record interest and penalties related to income taxes as a component of income tax expense in our consolidated financial statements. Comprehensive income (loss) – Comprehensive income (loss) and its components are presented on the Statements of Stockholders' Equity. Accumulated other comprehensive loss consisted of the following:       (In millions)    2010      2009   Postretirement benefit plan adjustments     $ (8,994 )      $ (8,564 )  Foreign currency translation adjustments      (17 )       (26 )  Other, net      1         (5 )  Accumulated other comprehensive loss     $ (9,010 )      $ (8,595 )  Recent accounting pronouncements – In October 2009, the Financial Accounting Standards Board (FASB) issued an accounting standard which revised its accounting guidance related to revenue arrangements with multiple deliverables. The standard relates to the determination of when the individual deliverables included in a multiple-element arrangement may be treated as separate units of accounting and modifies the manner in which the transaction consideration is allocated across the individual deliverables, thereby affecting the timing of revenue recognition. Also, the standard expands the disclosure requirements for revenue arrangements with multiple deliverables. The standard will be effective for us beginning on January 1, 2011, and will apply prospectively to certain multiple-element arrangements with non-U.S. Government customers entered into or materially modified after the adoption date. We do not expect the adoption of this accounting standard will have a material effect on our financial results.

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Discontinued Operations	12 Months Ended
Dec. 31, 2010
Discontinued Operations
Discontinued Operations	Note 2 – Discontinued Operations In June 2010, we announced plans to divest Pacific Architects and Engineers, Inc. (PAE) and most of our Enterprise Integration Group (EIG), two businesses within our Information Systems & Global Solutions (IS&GS) reporting segment. On November 22, 2010, we closed on the sale of EIG for  $815 million and recognized a gain, net of tax, of  $184 million ( $.50 per share) in the fourth quarter of 2010 which is included in discontinued operations. We received proceeds, net of  $17 million in transaction costs, of  $798 million related to the sale, which are included in investing activities on our Statement of Cash Flows. We made a  $260 million tax payment related to the sale which is included in operating activities on our Statement of Cash Flows. EIG's operating results are included in discontinued operations on our Statements of Earnings for all periods presented. Our decision to divest EIG was based on our analysis of the U.S. Government's increased concerns about perceived organizational conflicts of interest within the defense contracting community. EIG provides systems engineering, architecture, and integration services and support to a broad range of government customers. As a result of our decision in 2010 to sell PAE, we recorded a  $182 million deferred tax asset which reflects the federal and state tax benefits that we expect to realize on the sale of the PAE business because our tax basis is higher than our book basis. We also recorded a  $109 million impairment charge which reduced the carrying value of PAE to equal the expected net proceeds from the transaction. The net result increased earnings from discontinued operations by  $73 million ( $.20 per share). PAE's operating results are included in discontinued operations on our Statements of Earnings for all periods presented, and its assets and liabilities are classified as held for sale on our 2010 Balance Sheet. The plan to divest PAE is a result of changes in customer priorities. When we acquired the business, we envisioned it as an entry point to a new customer set that would need additional services, primarily in the areas of information technology and systems integration. Those customers, however, are seeking a different mix of services, such as the construction of facilities and provision of physical security, which does not fit with our long-term strategy. The plan to divest PAE is a result of changes in customer priorities. When we acquired the business, we envisioned it as an entry point to a new customer set that would need additional services, primarily in the areas of information technology and systems integration. Those customers, however, are seeking a different mix of services, such as the construction of facilities and provision of physical security, which does not fit with our long-term strategy. In the following table of financial information, we have combined the results of operations of PAE and EIG as the amounts for the individual businesses are not material. Summary financial information related to discontinued operations is as follows:       (In millions)    2010      2009      2008   Net sales     $ 1,087        $ 1,195        $ 1,359    Earnings before income taxes      44         54         76    Earnings after income taxes     $ 24        $ 25        $ 50    Gain on sale of EIG      184         —           —      Adjustments from planned sale of PAE      73         —           —      Earnings from discontinued operations     $ 281        $ 25        $ 50    The major classes of assets and liabilities related to PAE and classified as held for sale on our Balance Sheet as of December 31, 2010 are listed in the table below.       (In millions)    December 31, 2010   Assets    Receivables     $ 267    Goodwill and other assets      132    Assets of Discontinued Operation Held for Sale     $ 399    Liabilities    Accounts payable and accrued expenses     $ 122    Other liabilities      82    Liabilities of Discontinued Operation Held for Sale     $ 204

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Restructuring and Other Activities	12 Months Ended
Dec. 31, 2010
Restructuring and Other Activities
Restructuring and Other Activities	Note 3 – Restructuring and Other Activities In 2010, we recorded a charge to cost of sales, net of state income tax benefits, of  $178 million related to the Voluntary Executive Separation Program (VESP) we announced in July 2010. The charge, which included the anticipated lump-sum special payments for qualifying executives, reduced our net earnings for 2010 by  $116 million ( $.31 per share). Approximately 600 executives, or about 25% of our total executive population, applied to voluntarily participate in the program and were subsequently approved. Approved VESP participants will receive a lump-sum special payment upon termination. The effective date of termination of employment for most participants was February 1, 2011, with the lump-sum special payments to be made within 90 days from separation of service. In the fourth quarter of 2010, the Mission Systems & Sensors (MS2) line of business in Electronic Systems announced a plan to consolidate certain of its operations. Accordingly, we recorded a charge to cost of sales, net of state income tax benefits, of  $42 million which reduced our net earnings for 2010 by  $27 million ( $.07 per share). The majority of the charge was associated with the accrual of severance payments to employees, with the remainder associated with impairment of assets. The consolidation plan primarily related to the decision to close down the MS2 facility in Eagan, Minnesota and move the operations to other MS2 locations. We expect to complete these activities by 2013. In 2008, we recognized a deferred gain, net of state income taxes, of  $108 million in other income, net. The deferred gain was originally recorded in 2006 in connection with the sale of our interests in Lockheed Khrunichev Energia International, Inc. (LKEI) and International Launch Services, Inc. (ILS). Under the sale agreement, we were responsible to refund advances to certain customers if launch services were not provided and ILS did not refund the advances. Due to this continuing involvement with those customers of ILS, many of the risks related to this business had not been transferred and we had not recognized this transaction as a divestiture for financial reporting purposes. In 2008, Khrunichev provided the remaining launch services for which we had potential responsibility to refund advances, such that we were not required to repay advances. Recognition of the deferred gain increased net earnings by  $70 million ( $.17 per share). In 2008, we recognized, net of state income taxes,  $85 million in other income, net, due to the elimination of reserves related to various land sales in California. Reserves were originally recorded at the time of each land sale in 2007 and prior years based on the U.S. Government's assertion that a significant portion of the sale proceeds should be allocated to the buildings and improvements on the properties, thereby giving the U.S. Government the right to share in the gains associated with the land sales. At the time the land sales occurred, we believed the value of the properties sold was attributable to the land versus the buildings and improvements. The dispute was resolved by the Armed Services Board of Contract Appeals, which determined that our accounting for the land sales was in accordance with the Federal Acquisition Regulation and CAS. We reached a settlement with the U.S. Government in 2008, and the previously recorded reserves were no longer required. Resolution of this matter increased our net earnings by  $56 million ( $.14 per share).

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Earnings Per Share	12 Months Ended
Dec. 31, 2010
Earnings Per Share
Earnings Per Share	Note 4 – Earnings Per Share We compute basic and diluted per share amounts based on net earnings for the periods presented. We use the weighted average number of common shares outstanding during the period to calculate basic earnings per share. Our calculation of diluted per share amounts includes the dilutive effects of stock options and restricted stock units based on the treasury stock method in the weighted average number of common shares. Unless otherwise noted, we present all per share amounts cited in these consolidated financial statements on a "per diluted share" basis. The calculations of basic and diluted earnings per share are as follows:       (In millions, except per share data)    2010      2009      2008   Net earnings:          Earnings from continuing operations     $ 2,645        $ 2,999        $ 3,167    Earnings from discontinued operations      281         25         50    Net earnings for basic and diluted computations     $ 2,926        $ 3,024        $ 3,217    Weighted average common shares outstanding:          Average number of common shares outstanding for basic computations      364.2         384.8         399.7    Dilutive stock options and restricted stock units      4.1         4.1         9.7    Average number of common shares outstanding for diluted computations      368.3         388.9         409.4    Earnings per common share:          Basic          Continuing operations     $ 7.26        $ 7.79        $ 7.92    Discontinued operations      .77         .07         .13    Basic earnings per common share     $ 8.03        $ 7.86        $ 8.05    Diluted          Continuing operations     $ 7.18        $ 7.71        $ 7.74    Discontinued operations      .76         .07         .12    Diluted earnings per common share     $ 7.94        $ 7.78        $ 7.86      Stock options to purchase 11.0 million, 11.2 million, and 3.5 million shares of common stock outstanding at December 31, 2010, 2009, and 2008 had exercise prices that were in excess of the average market price of our common stock at the respective dates. As such, we did not include these stock options in our calculation of diluted earnings per share, as their effect would have been anti-dilutive.

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Information on Business Segments	12 Months Ended
Dec. 31, 2010
Information on Business Segments
Information on Business Segments	Note 5 – Information on Business Segments We operate in four principal business segments: Aeronautics, Electronic Systems, IS&GS, and Space Systems. We organize our business segments based on the nature of the products and services offered. The following is a brief description of the activities of the principal business segments:   •   Aeronautics – Engaged in the research, design, development, manufacture, integration, sustainment, support, and upgrade of advanced military aircraft, including combat and air mobility aircraft, unmanned air vehicles, and related technologies. Major products and programs include design, development, production and sustainment of the F-35 international multi-role, stealth fighter; the F-22 air dominance and multi-mission stealth fighter; the F-16 international multi-role fighter; the C-130J tactical transport aircraft; the C-5M strategic airlifter modernization program; and support for the P-3 maritime patrol aircraft and the U-2 high-altitude reconnaissance aircraft. Our Advanced Development Programs organization, which includes the Skunk Works, provides next generation innovative system solutions using rapid prototype applications and advanced technologies.   •   Electronic Systems – Manages complex programs and designs, develops, produces, and integrates hardware and software solutions to ensure the mission readiness of armed forces and government agencies worldwide. Global security solutions include advanced sensors, decision systems, and weapons for air-, land-, and sea-based platforms. The segment integrates land vehicles, ships, and fixed- and rotary-wing aircraft. Major products and programs include air and missile defense; tactical missiles; weapon fire control systems; surface ship and submarine combat systems; anti-submarine and undersea warfare systems; land, sea-based, and airborne radars; surveillance and reconnaissance systems; simulation and training systems; and integrated logistics and sustainment services. Electronic Systems also manages and operates the Sandia National Laboratories for the U.S. Department of Energy and is part of the consortium that manages the United Kingdom's Atomic Weapons Establishment.   •   Information Systems & Global Solutions – Provides management services, Information Technology (IT) solutions, and advanced technology expertise across a broad spectrum of applications to U.S. Government and other customers. IS&GS provides full life-cycle support and highly specialized talent in the areas of software and systems integration, including capabilities in space, air and ground systems for a wide variety of defense and civil government agencies in the U.S. and abroad.   •   Space Systems – Engaged in the design, research and development, engineering, and production of satellites, strategic and defensive missile systems, and space transportation systems, including activities related to the planned replacement of the Space Shuttle. The Satellite line of business includes both government and commercial satellites. Strategic & Defensive Missile Systems includes missile defense technologies and systems and fleet ballistic missiles. Space Transportation Systems includes portions of the next generation human space flight system. Through ownership interests in two joint ventures, Space Transportation Systems also includes Space Shuttle processing activities and expendable launch services for the U.S. Government. In 2010, we announced the realignment of two IS&GS businesses, Readiness & Stability Operations (RSO) and Savi Technology, Inc., with our simulation, training and support business to form the Global Training & Logistics line of business within Electronic Systems. The realignment had no effect on our consolidated results of operations, financial position, or cash flows. The financial information in the following tables below has been reclassified to reflect this realignment and to exclude the PAE and EIG businesses from the IS&GS business segment information (see Note 2) for all periods presented. The following table presents net sales and operating profit of our four business segments. Net sales exclude intersegment revenue, as these activities are eliminated in consolidation. Intercompany transactions are generally negotiated and accounted for under terms and conditions similar to other government and commercial contracts. Operating profit of the business segments includes the equity earnings or losses from investees in which certain of our business segments hold equity interests, because the activities of the investees are closely aligned with the operations of those segments. Operating profit of the business segments excludes the FAS/CAS pension adjustment discussed below; expense for certain stock-based compensation programs including costs for stock options and restricted stock units; the effects of items not considered part of management's evaluation of segment operating performance, such as the charges related to the VESP and the MS2 consolidation plan (see Note 3); gains or losses from divestitures; the effects of legal settlements; Corporate costs not allocated to the business segments; and other miscellaneous Corporate activities. The items other than the charges related to the VESP and MS2 consolidation plan are included in "Other unallocated Corporate income (expense), net" in the following table which reconciles operating profit from the business segments to operating profit in our Statements of Earnings. The charge related to the VESP and MS2 consolidation plan are presented together as a separate reconciling item. The results of operations of our business segments include pension expense only as determined and funded in accordance with U.S. Government Cost Accounting Standards (CAS) rules. The FAS/CAS pension adjustment represents the difference between pension expense or income calculated in accordance with GAAP and pension costs calculated and funded in accordance with CAS. CAS is a major factor in determining our pension funding requirements, and governs the extent to which pension costs can be allocated to and recovered on U.S. Government contracts. The CAS expense is recovered through the pricing of our products and services on U.S. Government contracts and, therefore, is recognized in each of our business segments' net sales and cost of sales. Selected Financial Data by Business Segment       (In millions)    2010      2009      2008   Net sales          Aeronautics     $ 13,235        $ 12,201        $ 11,473    Electronic Systems      14,363         13,532         12,803    Information Systems & Global Solutions      9,959         9,608         9,069    Space Systems      8,246         8,654         8,027    Total     $ 45,803        $ 43,995        $ 41,372    Operating profit (a)          Aeronautics     $ 1,502        $ 1,577        $ 1,433    Electronic Systems      1,712         1,660         1,583    Information Systems & Global Solutions      890         895         919    Space Systems      972         972         953    Total business segments      5,076         5,104         4,888    Voluntary executive separation and other charges (b)      (220 )       —           —      Other unallocated Corporate income (expense), net (c)      (759 )       (689 )       161    Operating profit     $ 4,097        $ 4,415        $ 5,049    Intersegment revenue          Aeronautics     $ 128        $ 210        $ 147    Electronic Systems      989         860         662    Information Systems & Global Solutions      912         827         803    Space Systems      124         122         203    Total     $ 2,153        $ 2,019        $ 1,815    Depreciation and amortization of plant and equipment          Aeronautics     $ 205        $ 198        $ 190    Electronic Systems      237         245         257    Information Systems & Global Solutions      63         66         61    Space Systems      186         182         166    Total business segments      691         691         674    Corporate activities      58         59         53    Total     $ 749        $ 750        $ 727    Expenditures for property, plant and equipment          Aeronautics     $ 271        $ 248        $ 227    Electronic Systems      260         266         275    Information Systems & Global Solutions      53         52         72    Space Systems      181         210         231    Total business segments      765         776         805    Corporate activities      55         76         121    Total     $ 820        $ 852        $ 926      (a) Operating profit included equity in net earnings (losses) of equity investees as follows:       (In millions)    2010      2009      2008   Aeronautics     $ 7        $ 9        $ 21    Electronic Systems      50         53         43    Space Systems      259         218         224    Total business segments      316         280         288    Corporate activities      (4 )       (2 )       —      Total     $ 312        $ 278        $ 288      (b) Voluntary executive separation and other charges included the charges associated with the VESP and MS2's consolidation of facilities (see Note 3). c) Other unallocated Corporate income (expense), net included the following:     (In millions)    2010      2009      2008   FAS/CAS pension adjustment     $ (454 )      $ (456 )      $ 128    Items not considered in segment operating performance      —           —           193    Stock-based compensation      (168 )       (154 )       (155 )  Other      (137 )       (79 )       (5 )  Total     $ (759 )      $ (689 )      $ 161    See Note 3 for information regarding the items not considered in segment operating performance.      (In millions)    2010      2009   Assets (a)       Aeronautics     $ 5,230        $ 4,356    Electronic Systems      9,972         10,080    Information Systems & Global Solutions      5,524         6,443    Space Systems      3,014         3,097    Total business segments      23,740         23,976    Corporate assets (b)      10,928         11,135    Assets of discontinued operation held for sale      399         —      Total     $ 35,067        $ 35,111    Goodwill       Aeronautics     $ 148        $ 148    Electronic Systems      5,601         5,595    Information Systems & Global Solutions      3,363         3,712    Space Systems      493         493    Total     $ 9,605        $ 9,948    Customer advances and amounts in excess of costs incurred       Aeronautics     $ 2,773        $ 2,389    Electronic Systems      2,408         2,297    Information Systems & Global Solutions      195         172    Space Systems      343         191    Total     $ 5,719        $ 5,049      (a) We have no significant long-lived assets located in foreign countries. (b) Corporate assets primarily include cash and cash equivalents, short-term investments, deferred income taxes, the prepaid pension asset, deferred environmental assets, and investments held in a Rabbi Trust.   Net Sales by Customer Category       (In millions)    2010      2009      2008   U.S. Government          Aeronautics     $ 10,720        $ 10,151        $ 9,268    Electronic Systems      10,242         9,699         9,405    Information Systems & Global Solutions      9,437         9,128         8,588    Space Systems      7,995         8,405         7,685    Total     $ 38,394        $ 37,383        $ 34,946    Foreign governments (a) (b)          Aeronautics     $ 2,478        $ 1,990        $ 2,043    Electronic Systems      3,749         3,432         3,049    Information Systems & Global Solutions      417         256         160    Space Systems      20         27         15    Total     $ 6,664        $ 5,705        $ 5,267    Commercial and Other (b)          Aeronautics     $ 37        $ 60        $ 162    Electronic Systems      372         401         349    Information Systems & Global Solutions      105         224         321    Space Systems      231         222         327    Total     $ 745        $ 907        $ 1,159          $ 45,803        $ 43,995        $ 41,372      (a) Sales made to foreign governments through the U.S. Government, or "foreign military sales," are included in the "Foreign governments" category. (b) International sales, including export sales reflected in the "Foreign governments" and "Commercial and Other" categories, were  $7.1 billion in 2010,  $6.3 billion in 2009, and  $5.7 billion in 2008.

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Receivables	12 Months Ended
Dec. 31, 2010
Receivables
Receivables	Note 6 – Receivables Receivables consisted of the following components:       (In millions)    2010      2009   U.S. Government       Amounts billed     $ 1,360        $ 1,648    Unbilled costs and accrued profits      3,127         2,718    Less: customer advances and progress payments      (591 )       (486 )         3,896         3,880    Foreign governments and commercial       Amounts billed      461         598    Unbilled costs and accrued profits      1,649         1,811    Less: customer advances      (249 )       (228 )         1,861         2,181          $ 5,757        $ 6,061    We expect to bill substantially all of the December 31, 2010 unbilled costs and accrued profits during 2011.

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Inventories	12 Months Ended
Dec. 31, 2010
Inventories
Inventories	Note 7 – Inventories Inventories consisted of the following components:       (In millions)    2010      2009   Work-in-process, primarily related to long-term contracts and programs in progress     $ 6,523        $ 5,565    Less: customer advances and progress payments      (4,788 )       (3,941 )       1,735         1,624    Other inventories      643         559          $ 2,378        $ 2,183    Work-in-process inventories at December 31, 2010 and 2009 included general and administrative costs of  $522 million and  $550 million. During 2010, 2009, and 2008, general and administrative costs incurred and recorded in inventories totaled  $2,325 million,  $2,352 million, and  $2,324 million, and general and administrative costs charged to cost of sales from inventories totaled  $2,352 million,  $2,108 million, and  $2,213 million.

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Property, Plant, and Equipment	12 Months Ended
Dec. 31, 2010
Property, Plant, and Equipment
Property, Plant, and Equipment	Note 8 – Property, Plant, and Equipment Property, plant, and equipment consisted of the following components:       (In millions)    2010      2009   Land     $ 111        $ 112    Buildings      5,264         5,010    Machinery and equipment      6,583         6,283         11,958         11,405    Less: accumulated depreciation and amortization      (7,404 )       (6,885 )        $ 4,554        $ 4,520

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Income Taxes	12 Months Ended
Dec. 31, 2010
Income Taxes
Income Taxes	Note 9 – Income Taxes Our provision for federal and foreign income tax expense for continuing operations consisted of the following components:       (In millions)    2010      2009      2008   Federal income taxes:          Current     $ 589        $ 667        $ 1,378    Deferred      589         583         55    Total federal income taxes      1,178         1,250         1,433    Foreign income taxes:          Current      8         (4 )       26    Deferred      (5 )       (15 )       —      Total foreign income taxes      3         (19 )       26    Income tax expense     $ 1,181        $ 1,231        $ 1,459    State income taxes are included in our operations as general and administrative costs and, under U.S. Government regulations, are allowable in establishing prices for the products and services we sell to the U.S. Government. Therefore, a substantial portion of state income taxes is included in our net sales and cost of sales. As a result, the impact of certain transactions on our operating profit and other matters disclosed in these financial statements is disclosed net of state income taxes. Our total net state income tax expense was  $168 million for 2010 (including state income taxes related to the sale of EIG),  $144 million for 2009, and  $221 million for 2008.   Our reconciliation of the 35% U.S. federal statutory income tax rate to actual income tax expense for continuing operations is as follows:       (In millions)    2010      2009      2008   Income tax expense at the U.S. federal statutory tax rate     $ 1,339        $ 1,481        $ 1,619    Increase (decrease) in tax expense:          U.S. manufacturing activity benefit      (110 )       (39 )       (67 )  Medicare Part D law change      96         —           —      Tax deductible dividends      (56 )       (49 )       (38 )  Research and development tax credit      (43 )       (43 )       (36 )  Other, net      (45 )       (119 )       (19 )  Income tax expense     $ 1,181        $ 1,231        $ 1,459    Our U.S. manufacturing activity benefit is based on income derived from qualified production activity (QPA) in the United States. The deduction rate, which was 9% for 2010 and 6% for 2009 and 2008, is applied against QPA income to arrive at the deduction. The increased benefit in 2010 is due to an increase in QPA income, as well as the higher deduction rate in 2010. In March 2010, the President signed into law the Patient Protection and Affordable Care Act and the Health Care and Education Reconciliation Act of 2010. Beginning January 1, 2013, these laws change the tax treatment for retiree prescription drug expenses by eliminating the tax deduction available to the extent that those expenses are reimbursed under Medicare Part D. Because the tax benefits associated with these future deductions were reflected as deferred tax assets as of December 31, 2009, the elimination of the tax deductions resulted in a reduction in deferred tax assets and an increase in income tax expense in 2010. As a result, we recognized a tax expense for 2010, which increased income tax expense by  $96 million ( $.26 per share). We receive a tax deduction related to dividends paid on shares of our common stock held by certain of our defined contribution plans with an employee stock ownership plan (ESOP) feature. The amount of the tax deduction has increased as we increased our dividend over the last three years. Income tax expense for 2010 included the impact of the Tax Relief, Unemployment Insurance Reauthorization, and Job Creation Act of 2010, signed by the President on December 17, 2010, which retroactively extended the research and development tax credit from January 1, 2010 through December 31, 2011. As a result, we recognized a tax benefit for the impact of the tax credit in 2010, which reduced our income tax expense by  $43 million ( $0.12 per share). This benefit is comparable to that recorded in 2009 and 2008. We participate in the Internal Revenue Service (IRS) Compliance Assurance Process (CAP) program. The year 2010 is currently under examination by the IRS. During the fourth quarter of 2010, the IRS examination of our U.S. Federal Income Tax Return for the year 2009 was resolved. This resolution did not have a material impact on the income tax rate. In 2009, the IRS examinations of our U.S. Federal Income Tax Returns for the years 2005-2007 and 2008 were resolved and settled, except for certain issues, which are pending in the IRS Appeals Division. As a result, we recognized additional tax benefits and reduced our income tax expense for 2009 by  $69 million ( $.18 per share), including related interest. This reduction in income tax expense, included in Other, net in the table above, reduced our effective income tax rate for 2009 by 1.6%.   The primary components of our federal and foreign deferred income tax assets and liabilities at December 31 were as follows:    (In millions)    2010      2009   Deferred tax assets related to:       Accrued compensation and benefits     $ 877        $ 796    Pensions      3,642         3,664    Other postretirement benefit obligations      459         565    Contract accounting methods      419         391    Planned sale of PAE      179         —      Foreign company operating losses and credits      14         15    Valuation allowance      —           (13 )  Deferred tax assets, net      5,590         5,418    Deferred tax liabilities related to:       Goodwill and purchased intangibles      336         371    Property, plant and equipment      558         343    Exchanged debt securities and other (a)      189         111    Deferred tax liabilities      1,083         825    Net deferred tax assets (b)     $ 4,507        $ 4,593      (a) Includes deferred tax liabilities associated with the exchange of debt securities in 2010 (see Note 10) and 2006. (b) Includes net foreign current deferred tax liabilities, which are included on the Balance Sheets in other current liabilities. We have recorded liabilities for unrecognized tax benefits related to permanent and temporary tax adjustments that, exclusive of interest, totaled  $160 million and  $217 million at December 31, 2010 and 2009. The change in the liabilities resulted from the following:       (In millions)    2010      2009   Balance at January 1     $ 217        $ 250    Tax positions related to the current year      73         39    Increase (decrease) related to tax positions in prior years:       Recognition of benefits from resolution of issues with IRS      —           (54 )  Reclassification to liabilities of discontinued operation held for sale      (29 )       —      Other, net      (16 )       —      Decreases related to settlements with taxing authorities:       Settlements with taxing authorities for prior years      —           (18 )  Advance payment for pending matters      (85 )       —      Balance at December 31     $ 160        $ 217    The liabilities at the end of 2010 and 2009 were primarily recorded in other current liabilities on the Balance Sheets. Substantially all of these unrecognized tax benefits would affect the effective tax rate, if we were to prevail on all of the related issues. The amount of net interest and penalties recognized as a component of income tax expense during 2010, 2009, and 2008, as well as the amount of interest and penalties accrued at December 31, 2010 and 2009, was not material. We have protested to the IRS Appeals Division certain proposed adjustments related to tax years 2003-2009, and these years are subject to review by the Joint Committee on Taxation. It is reasonably possible that during the next 12 months the completion of the Joint Committee on Taxation's review will occur, causing the elimination of substantially all of our unrecognized tax benefits. We expect that a substantial portion of the reduction in unrecognized tax benefits will affect earnings. We and our subsidiaries file income tax returns in the U.S. federal jurisdiction and various foreign jurisdictions. With few exceptions, the statute of limitations is no longer open for U.S. federal or non-U.S. income tax examinations for the years before 2003. U.S. income taxes and foreign withholding taxes have not been provided on earnings of  $108 million,  $123 million, and  $139 million that have not been distributed by our non-U.S. companies as of December 31, 2010, 2009, and 2008. Our intention is to permanently reinvest these earnings, thereby indefinitely postponing their remittance to the United States. If these earnings were remitted, we estimate that the additional income taxes after foreign tax credits would have been approximately  $17 million in 2010,  $29 million in 2009, and  $16 million in 2008. Our federal and foreign income tax payments, net of refunds received, were  $806 million in 2010,  $986 million in 2009, and  $1,234 million in 2008. A payment of  $260 million associated with the divestiture of EIG, a  $325 million refund received in 2010 from the IRS related to estimated taxes paid for the 2009 calendar year, and an  $85 million advance payment related to matters pending with IRS Appeals are included in 2010 payments.

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Debt	12 Months Ended
Dec. 31, 2010
Debt
Debt	Note 10 – Debt Our long-term debt is primarily in the form of publicly issued notes and debentures, as follows:       (In millions)    Interest Rate     2010     2009   Notes due 3/14/2013      4.12 %     $ 500       $ 500    Debentures due 4/15/2013      7.38 %      150        150    Debentures due 5/1/2016      7.65 %      451        600    Notes due 11/15/2019      4.25 %      900        900    Debentures due 9/15/2023      7.00 %      200        200    Notes due 6/15/2024      8.38 %      167        167    Debentures due 6/15/2025      7.63 %      150        150    Debentures due 5/1/2026      7.75 %      275        423    Debentures due 12/1/2029      8.50 %      206        317    Debentures due 5/1/2036      7.20 %      97        300    Notes due 9/1/2036      6.15 %      1,079        1,079    Notes due 11/15/2039      5.50 %      600        600    Notes due 6/1/2040      5.72 %      728        —      Unamortized discount      N/A        (505 )      (351 )  Other      Various        21        17                  $ 5,019       $ 5,052    In May 2010, we issued  $728 million of new 5.72% Notes due 2040 (the New Notes) in exchange for  $611 million of our then outstanding debt securities listed in the table below (the Old Notes). We paid a premium of  $158 million in the exchange, of which  $117 million was in the form of New Notes. The remaining  $41 million, along with  $6 million in expenses associated with the transaction, was paid in cash. The premium was recorded as a discount and will be amortized as additional interest expense over the life of the New Notes, using the effective interest method.         Principal Amount Exchanged        (In millions)   Old Notes Exchanged    7.65% Debentures due 2016     $ 149    7.75% Debentures due 2026      148    8.50% Debentures due 2029      111    7.20% Debentures due 2036      203          $ 611    In November 2009, we issued a total of  $1.5 billion of long-term notes in a registered public offering,  $900 million of which are due in 2019 and have a fixed coupon interest rate of 4.25%. The remaining  $600 million of long-term notes are due in 2039 and have a fixed coupon interest rate of 5.50%. In March 2008, we issued  $500 million of long-term notes in a registered public offering. These notes are due in 2013 and have a fixed coupon interest rate of 4.12%. At December 31, 2010 and 2009, we had in place with a group of banks a  $1.5 billion revolving credit facility which expires in June 2012. There were no borrowings outstanding under the facility during 2010 or 2009. Borrowings under the credit facility would be unsecured and bear interest at rates based, at our option, on the Eurodollar rate or a bank defined Base Rate. Each bank's obligation to make loans under the credit facility is subject to, among other things, our compliance with various representations, warranties and covenants, including covenants limiting our ability and certain of our subsidiaries to encumber assets and a covenant not to exceed a maximum leverage ratio. As of December 31, 2010, we were in compliance with all covenants contained in our credit facility agreement, as well as in our debt agreements. We have agreements in place with banking institutions to provide for the issuance of commercial paper. There were no commercial paper borrowings outstanding during 2010 or 2009. If we were to issue commercial paper, the borrowings would be supported by the  $1.5 billion revolving credit facility. During the five year period from 2011 through 2015, we have  $650 million in scheduled long-term debt maturities, all of which are due in 2013. Interest payments were  $337 million in 2010,  $286 million in 2009, and  $320 million in 2008.

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Postretirement Benefit Plans	12 Months Ended
Dec. 31, 2010
Postretirement Benefit Plans
Postretirement Benefit Plans	Note 11 – Postretirement Benefit Plans Defined Contribution Plans We maintain a number of defined contribution plans, most with 401(k) features that cover substantially all of our employees. Under the provisions of our 401(k) plans, most employees' eligible contributions are matched at rates specified in the plan documents. Our contributions were  $379 million in 2010,  $364 million in 2009, and  $351 million in 2008, the majority of which were funded in our common stock. Our Salaried Savings Plan is a defined contribution plan with a 401(k) feature that includes an ESOP Fund. Our matching contributions to the Salaried Savings Plan have been fulfilled through newly issued shares or purchases of our common stock. Participants can elect dividends on our common stock to be reinvested or paid in cash. At December 31, 2010, the Salaried Savings Plan held 58.9 million issued and outstanding shares of our common stock, all of which were allocated to participant accounts. All other plans for hourly and salaried employees include an ESOP feature. In these plans, the match and employer contributions are made at the election of the participant, in either our common stock or cash that may be invested at the participant's direction in one of the plan's other investment options. Contributions that participants directed to be invested in our common stock were used by the investment manager to purchase common stock either in the open market or from participant account balance reallocations. Participants can elect dividends on our common stock to be reinvested or paid in cash. One of our hourly savings plans has an ESOP Fund. This ESOP Fund held 1.8 million issued and outstanding shares of our common stock at December 31, 2010, all of which were allocated to participant accounts. Defined Benefit Pension Plans and Retiree Medical and Life Insurance Plans Most of our employees hired on or before December 31, 2005 are covered by qualified defined benefit pension plans, and we provide certain health care and life insurance benefits to eligible retirees (collectively, postretirement benefit plans). We also sponsor nonqualified defined benefit pension plans to provide for benefits in excess of qualified plan limits. Non-union represented employees hired on or after January 1, 2006 do not participate in our qualified defined benefit pension plans, but are eligible to participate in our qualified defined contribution plan in addition to our other retirement savings plans. They also have the ability to participate in our retiree medical plans, but we do not subsidize the cost of their participation in those plans as we do with employees hired before January 1, 2006. We have made contributions to trusts established to pay future benefits to eligible retirees and dependents (including Voluntary Employees' Beneficiary Association trusts and 401(h) accounts, the assets of which will be used to pay expenses of certain retiree medical plans). We use December 31 as the measurement date. Benefit obligations as of the end of each year reflect assumptions in effect as of those dates. Net pension and net retiree medical costs for each of the years presented were based on assumptions in effect at the end of the respective preceding year. The rules related to accounting for postretirement benefit plans under GAAP require us to recognize on a plan-by-plan basis the funded status of our postretirement benefit plans, with a corresponding noncash adjustment to accumulated other comprehensive income (loss), net of tax, in stockholders' equity. The funded status is measured as the difference between the fair value of the plan's assets and the benefit obligation of the plan.   Benefit Obligations and Funded Status The following provides a reconciliation of benefit obligations, plan assets, and unfunded status related to our postretirement benefit plans:       (In millions)    Defined Benefit Pension Plans     Retiree Medical and Life Insurance Plans      2010     2009     2010     2009   Change in benefit obligations          Benefit obligations at beginning of year     $ 32,817       $ 30,421       $ 2,938       $ 2,812    Service cost      903        870        36        34    Interest cost      1,876        1,812        166        165    Benefits paid      (1,592 )      (1,510 )      (352 )      (366 )  Actuarial losses      2,032        1,153        105        106    Amendments      94        70        —          9    Divestitures/curtailments (a)      (357 )      1        (10 )      —      Medicare Part D subsidy      —          —          18        36    Participants' contributions      —          —          145        142    Benefit obligations at end of year     $ 35,773       $ 32,817       $ 3,046       $ 2,938    Change in plan assets          Fair value of plan assets at beginning of year     $ 22,154       $ 18,539       $ 1,630       $ 1,426    Actual return on plan assets      2,886        3,644        86        330    Benefits paid      (1,592 )      (1,510 )      (352 )      (366 )  Our contributions      2,240        1,482        311        60    Participants' contributions      —          —          145        142    Medicare Part D subsidy      —          —          18        36    Divestitures and other (a)      (343 )      (1 )      (5 )      2    Fair value of plan assets at end of year     $ 25,345       $ 22,154       $ 1,833       $ 1,630    Unfunded status of the plans     $ (10,428 )     $ (10,663 )     $ (1,213 )     $ (1,308 )  Amounts recognized in the Balance Sheets          Prepaid pension asset     $ 179       $ 160       $ —         $ —      Accrued postretirement benefit liabilities      (10,607 )      (10,823 )      (1,213 )      (1,308 )  Accumulated other comprehensive (income) loss (pre-tax) related to:          Net actuarial losses      12,263        11,809        684        564    Prior service cost (credit)      455        457        (37 )      (53 )    (a) Primarily reflects the transfer of assets and liabilities associated with the sale of EIG (see Note 2). An expense of  $109 million was recognized in connection with this settlement, which reduced the gain on sale. The accumulated benefit obligation for all qualified defined benefit pension plans was  $31.4 billion and  $29.0 billion at December 31, 2010 and 2009. For qualified defined benefit pension plans in which the accumulated benefit obligation (ABO) was in excess of the fair value of the plans' assets, the projected benefit obligation, ABO, and fair value of the plans' assets are presented below.       (In millions)    2010      2009   Projected benefit obligation     $ 35,640        $ 32,689    Accumulated benefit obligation      31,291         28,920    Fair value of plan assets      25,033         21,866    We also sponsor nonqualified defined benefit plans to provide benefits in excess of qualified plan limits. The aggregate liabilities for these plans at December 31, 2010 and 2009 were  $850 million and  $737 million, which also represent the plans' unfunded status. We have set aside certain assets totaling  $338 million and  $328 million as of December 31, 2010 and 2009 in a Rabbi Trust which we expect to be used to pay obligations under our nonqualified plans. In accordance with GAAP, those assets may not be used to offset the amount of the benefit obligation similar to the postretirement benefit plans in the table above. The unrecognized net actuarial losses at December 31, 2010 and 2009 were  $447 million and  $372 million, and the unrecognized prior service costs were not material. The expense associated with these plans totaled  $85 million in 2010,  $76 million in 2009, and  $71 million in 2008. We also sponsor a small number of other postemployment plans and foreign benefit plans. The aggregate liability for the other postemployment plans was  $93 million and  $70 million as of December 31, 2010 and 2009. The expense for the other postemployment plans, as well as the liability and expense associated with the foreign benefit plans, was not material to our results of operations, financial position, or cash flows. The unrecognized amounts recorded in accumulated other comprehensive loss subsequently will be recognized as an expense consistent with our historical accounting policy for amortizing those amounts. Actuarial gains and losses incurred in future periods and not recognized as expense in those periods will be recognized as increases or decreases in other comprehensive income (loss), net of tax. As they are subsequently recognized as a component of expense, the amounts recorded in other comprehensive income (loss) in prior periods are adjusted. The following postretirement benefit plan amounts were included as adjustments to other comprehensive income (loss), net of tax, during the years ended December 31, 2010 and 2009. The amounts relate primarily to our qualified defined benefit plans. The amounts listed under "Incurred but Not Recognized" reflect actuarial gains or losses due to differences between actual experience and the actuarial assumptions, and prior service costs or credits from improvements or reductions in plan benefits, each of which occurred during 2010 and 2009 and were recognized as a component of other comprehensive income at the end of the year. The amounts listed under "Reclassification Adjustment for Prior Period Amounts Recognized" reflect amounts that were amortized as a component of expense for the year and are no longer included in accumulated other comprehensive loss as of the end of the year.        Incurred but  Not Recognized      Reclassification Adjustment for Prior Period Amounts Recognized       (In millions)    2010      2009      2010      2009        Gains (losses)      (Gains) losses   Actuarial gains and losses     $ (921 )      $ 265        $ 501        $ 244         Credit (cost)      (Credit) cost   Prior service credit and cost      (62 )       (51 )       52         37          $ (983 )      $ 214        $ 553        $ 281    The unrecognized actuarial gain or loss included in accumulated other comprehensive loss at the end of 2010 and expected to be recognized in net pension cost during 2011 is a loss of  $880 million ( $568 million net of income tax benefits) for our qualified defined benefit pension plans, a loss of  $34 million ( $22 million net of income tax benefits) for our retiree medical and life insurance plans, and a loss of  $38 million ( $25 million net of income tax benefits) for our nonqualified defined benefit pension plans. The amounts of unrecognized actuarial gain or loss for the foreign benefit and other plans are not expected to be material in 2011. The prior service credit or cost included in accumulated other comprehensive loss at the end of 2010 and expected to be recognized in net pension cost during 2011 is a cost of  $82 million ( $53 million net of income tax benefits) for our qualified defined benefit pension plans and a credit of  $16 million ( $10 million net of income taxes) for our retiree medical and life insurance plans. The amounts of prior service cost for the nonqualified, foreign, and other plans are not expected to be material in 2011. No plan assets are expected to be returned to us in 2011. Net Pension and Postretirement Benefit Costs The net pension cost and the net postretirement benefit cost included the following components:       (In millions)    2010      2009      2008   Qualified defined benefit pension plans          Service cost     $ 903        $ 870        $ 823    Interest cost      1,876         1,812         1,741    Expected return on plan assets      (2,027 )       (2,028 )       (2,184 )  Recognized net actuarial losses      595         302         2    Amortization of prior service cost      83         80         80    Curtailment      12         —           —      Total net pension expense     $ 1,442        $ 1,036        $ 462    Retiree medical and life insurance plans          Service cost     $ 36        $ 34        $ 43    Interest cost      166         165         180    Expected return on plan assets      (129 )       (106 )       (153 )  Recognized net actuarial losses      25         42         1    Amortization of prior service credit      (16 )       (23 )       (25 )  Total net postretirement expense     $ 82        $ 112        $ 46    Actuarial Assumptions The actuarial assumptions used to determine the benefit obligations at December 31, 2010 and 2009 related to our postretirement benefit plans were as follows:        Benefit  Obligation Assumptions         2010     2009   Discount rate      5.500 %      5.875 %  Rate of increase in future compensation levels      4.400        4.500    The decrease in the discount rate from December 31, 2009 to December 31, 2010 resulted in an increase in the projected benefit obligations of our qualified defined benefit pension plans of approximately  $1.7 billion at December 31, 2010. The actuarial assumptions used to determine the net expense related to our postretirement benefit plans in 2010, 2009, and 2008 were as follows:        Postretirement Benefit  Plan Cost Assumptions         2010     2009     2008   Discount rate      5.875 %      6.125 %      6.375 %  Expected long-term rate of return on assets      8.500        8.500        8.500    Rate of increase in future compensation levels      4.500        4.600        4.700    The long-term rate of return assumption represents the expected average rate of earnings on the funds invested or to be invested to provide for the benefits included in the benefit obligations. That assumption is based on several factors including historical market index returns, the anticipated long-term asset allocation of plan assets, the historical return data, plan expenses, and the potential to outperform market index returns. The medical trend rate used in measuring the postretirement benefit obligation at December 31, 2010, was 10.0%, and was assumed to ultimately decrease to 5.0% by 2021. A 10.0% rate was used at December 31, 2009 for pre-Medicare coverage and 9.5% for post-Medicare coverage, and was assumed to ultimately decrease to 5.0% by 2020 for pre-Medicare coverage and 2019 for post-Medicare coverage. An increase or decrease of one percentage point in the assumed medical trend rates would result in a change in the postretirement benefit obligation of 5.6% and (4.2)% at December 31, 2010, and a change in the 2010 postretirement service cost plus interest cost of 3.9% and (3.4)%. The medical trend rate for 2011 is 10.0%.   Contributions and Expected Benefit Payments We generally determine funding requirements for our defined benefit pension plans in a manner consistent with CAS and Internal Revenue Code rules. In 2010, we made discretionary contributions of  $2,240 million related to our qualified defined benefit pension plans. Based on our known requirements as of December 31, 2010, approximately  $1.0 billion of contributions related to those plans are expected to be required in 2011. We plan to make contributions of  $1.3 billion related to the qualified defined benefit pension plans in 2011, as we anticipate that funding requirements under the Pension Protection Act beginning in 2011 will be higher than requirements in previous years. We also may review options for further contributions in 2011. We do not expect contributions to be required related to the retiree medical and life insurance plans in 2011. The following benefit payments, which reflect expected future service, and receipts are expected to be paid or received. The payments for the retiree medical and life insurance plans are shown net of estimated employee contributions for the respective years but are not shown net of the anticipated subsidy receipts. Retiree Medical and Life  Insurance Plans       (In millions)    Qualified Pension Benefits      Payments      Subsidy Receipts (a)   2011     $ 1,670        $ 250        $ 30    2012      1,740         260         30    2013      1,810         270         30    2014      1,900         270         40    2015      1,990         280         40    Years 2016 – 2020      11,580         1,330         150      (a) Amounts represent subsidy payments expected to be received under the Medicare Prescription Drug, Improvement, and Modernization Act of 2003. Under that law, the U.S. Government makes subsidy payments to eligible employers to offset the cost of prescription drug benefits provided to plan participants. During 2010 and 2009, we received  $18 million and  $36 million in subsidy payments.   Plan Assets Investment policies and strategies – Lockheed Martin Investment Management Company (LMIMCo), our wholly-owned subsidiary, has the fiduciary responsibility for making investment decisions related to the assets of our postretirement benefit plans. LMIMCo's investment objectives for the assets of the defined benefit pension and retiree medical and life insurance plans are (1) to minimize the net present value of expected funding contributions; (2) to ensure there is a high probability that each plan meets or exceeds our actuarial long-term rate of return assumptions; and (3) to diversify assets to minimize the risk of large losses. The nature and duration of benefit obligations, along with assumptions concerning asset class returns and return correlations, are considered when determining an appropriate asset allocation to achieve the investment objectives. Investment policies and strategies governing the assets of the plans are designed to achieve investment objectives within prudent risk parameters. Risk management practices include the use of external investment managers; the maintenance of a portfolio diversified by asset class, investment approach, and security holdings; and the maintenance of sufficient liquidity to meet benefit obligations as they come due. LMIMCo's investment policies require that asset allocations of postretirement benefit plans be maintained within the following approximate ranges:       Asset Class    Asset Allocation Ranges   Cash and cash equivalents      0 – 20 %  Equity      15 – 60 %  Fixed income      10 – 40 %  Alternative investments:    Private equity funds      0 – 10 %  Real estate funds      0 – 10 %  Hedge funds      0 – 10 %  Commodities      0 – 25 %    Fair value of plan assets – The rules related to accounting for postretirement benefit plans under GAAP require certain fair value disclosures related to postretirement benefit plan assets, even though those assets are not included on our Balance Sheets. The following table presents the fair value of the assets of our qualified defined benefit pension plans and retiree medical and life insurance plans by asset category and their level within the fair value hierarchy. See Note 15 for the description of each level within the fair value hierarchy.     (In millions)    Level 1      Level 2      Level 3      Balance as of December 31, 2010   Cash and cash equivalents     $ 1,726        $ —          $ —          $ 1,726    Equity (a):             U.S. equity securities      4,548         44         —           4,592    International equity securities      5,008         6         16         5,030    Commingled equity funds      1,287         1,056         —           2,343    Fixed income (a):             Corporate debt securities      —           1,351         63         1,414    U.S. Government securities      —           7,262         —           7,262    Other fixed income securities      —           584         47         631    Alternative investments:             Private equity funds      —           —           2,085         2,085    Real estate funds      —           —           164         164    Hedge funds      —           —           1,025         1,025    Commodities (a)      343         516         —           859    Total     $ 12,912        $ 10,819        $ 3,400        $ 27,131    Receivables, net                                 47    Total                                $ 27,178          (In millions)    Level 1      Level 2      Level 3      Balance as of December 31, 2009   Cash and cash equivalents     $ 2,187        $ —          $ —          $ 2,187    Equity (a):             U.S. equity securities (b)      4,136         22         —           4,158    International equity securities      3,466         76         16         3,558    Commingled equity funds      1,310         1,450         —           2,760    Fixed income (a):             Corporate debt securities      —           1,301         5         1,306    U.S. Government securities      —           5,173         —           5,173    Other fixed income securities      —           1,299         37         1,336    Alternative investments:             Private equity funds      —           —           1,730         1,730    Real estate funds      —           —           125         125    Hedge funds      —           —           750         750    Commodities (a)      161         481         —           642    Total     $ 11,260        $ 9,802        $ 2,663        $ 23,725    Receivables, net                                 59    Total                                $ 23,784      (a) Equity securities, fixed income securities, and commodities included derivative assets and liabilities whose fair values were not material as of December 31, 2010 and 2009. LMIMCo's investment policies restrict the use of derivatives to either establish long exposures for purposes of expediency or capital efficiency, or to hedge risks to the extent of a plan's current exposure to such risks. Most derivative transactions are settled on a daily basis. (b) U.S. equity securities included shares of our issued and outstanding common stock purchased by investment managers in the amounts of  $7 million (less than .03% of plan assets) as of December 31, 2009. As of December 31, 2010 and 2009, the assets associated with our foreign defined benefit pension plans were not material and have not been included in the table above.   The following table presents the changes during 2010 and 2009 in the fair value of plan assets categorized as Level 3 in the preceding table:       (In millions)    International Equity     Commin- gled Equity Funds     Corporate Debt     Other Fixed Income     Private Equity Funds      Real Estate Funds     Hedge Funds     Total   Balance at January 1, 2009     $ 7       $ 228       $ 113       $ 114       $ 1,417        $ 163       $ 973       $ 3,015    Actual return on plan assets:                   Realized gains (losses), net      (1 )      —          (21 )      1        66         —          (1 )      44    Unrealized gains (losses), net      1        92        44        12        133         (103 )      57        236    Purchases, sales, and settlements, net      12        —          (71 )      (84 )      114         65        (279 )      (243 )  Transfers out of Level 3      (3 )      (320 )      (60 )      (6 )      —           —          —          (389 )  Balance at December 31, 2009     $ 16       $ —         $ 5       $ 37       $ 1,730        $ 125       $ 750       $ 2,663    Actual return on plan assets:                   Realized gains (losses), net      —          —          —          2        123         —          1        126    Unrealized gains (losses), net      (3 )      —          2        1        103         7        13        123    Purchases, sales, and settlements, net      (4 )      —          61        8        129         32        261        487    Transfers in (out of) Level 3      7        —          (5 )      (1 )      —           —          —          1    Balance at December 31, 2010     $ 16       $ —         $ 63       $ 47       $ 2,085        $ 164       $ 1,025       $ 3,400    Valuation techniques – Cash equivalents are mostly comprised of short-term money-market instruments and are valued at cost, which approximates fair value. U.S. equity securities and international equity securities categorized as Level 1 are traded on national and international exchanges and are valued at their closing prices on the last trading day of the year. For U.S. equity securities and international equity securities not traded on an active exchange, or if the closing price is not available, the trustee obtains indicative quotes from a pricing vendor, broker, or investment manager. These securities are categorized as Level 2 if the custodian obtains corroborated quotes from a pricing vendor or categorized as Level 3 if the custodian obtains uncorroborated quotes from a broker or investment manager. Commingled equity funds are public investment vehicles valued using the Net Asset Value ("NAV") provided by the fund manager. The NAV is the total value of the fund divided by the number of shares outstanding. Commingled equity funds are categorized as Level 1 if traded at their NAV on a nationally recognized securities exchange or categorized as Level 2 if the NAV is corroborated by observable market data (e.g., purchases or sales activity). Fixed income securities categorized as Level 2 are valued by the trustee using pricing models that use verifiable observable market data (e.g. interest rates and yield curves observable at commonly quoted intervals), bids provided by brokers or dealers, or quoted prices of securities with similar characteristics. Private equity funds, real estate funds, hedge funds, and certain fixed income securities categorized as Level 3 are valued based on valuation models that include significant unobservable inputs and cannot be corroborated using verifiable observable market data. Valuations for private equity funds and real estate funds are determined by the general partners, while hedge funds are valued by independent administrators. Depending on the nature of the assets, the general partners or independent administrators use both the income and market approaches in their models. The market approach consists of analyzing market transactions for comparable assets while the income approach uses earnings or the net present value of estimated future cash flows adjusted for liquidity and other risk factors. Commodities categorized as Level 1 are traded on a commodity exchange and are valued at their closing prices on the last trading day of the year. Commodities categorized as Level 2 represent shares in a commingled commodity fund valued using the NAV, which is corroborated by observable market data.

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Stockholders' Equity	12 Months Ended
Dec. 31, 2010
Stockholders' Equity
Stockholders' Equity	Note 12 – Stockholders' Equity At December 31, 2010, our authorized capital was composed of 1.5 billion shares of common stock and 50 million shares of series preferred stock. Of the 348 million shares of common stock issued and outstanding, 346 million shares were considered outstanding for Balance Sheet presentation purposes; the remaining shares were held in the Rabbi Trust. No preferred stock shares were issued and outstanding at December 31, 2010. During 2010, 2009, and 2008, we repurchased 33.0 million, 24.9 million, and 29.0 million shares of our common stock for  $2,483 million,  $1,851 million, and  $2,931 million. Of the shares we repurchased in 2010, 0.9 million shares for  $63 million were repurchased in December but settled and were paid for in January 2011. In October 2010, our Board of Directors approved a new share repurchase program for the repurchase of our common stock from time-to-time, up to an authorized amount of  $3 billion. Under the program, we have discretion to determine the dollar amount of shares to be repurchased and the timing of any repurchases in compliance with applicable law and regulation. During 2010, we had repurchased a total of 11.2 million shares under the program for  $776 million, and as of December 31, 2010, there remained  $2,224 million available for additional share repurchases. In connection with their approval of the new share repurchase program, our Board of Directors terminated our previous share repurchase program. As we repurchase our common shares, we reduce common stock for the  $1 of par value of the shares repurchased, with the remainder of the purchase price over par value recorded as a reduction of additional paid-in capital. Due to the volume of repurchases made under our share repurchase program, additional paid-in capital was reduced to zero, with the remainder of the excess of purchase price over par value of  $1.9 billion and  $1.4 billion recorded as a reduction of retained earnings in 2010 and 2009.

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Stock-Based Compensation	12 Months Ended
Dec. 31, 2010
Stock-Based Compensation
Stock-Based Compensation	Note 13 – Stock-Based Compensation During 2010, 2009, and 2008, we recorded non-cash compensation cost related to stock options and restricted stock totaling  $168 million,  $154 million, and  $155 million, which is included on our Statements of Earnings in other unallocated corporate costs within cost of sales. The net impact to earnings for the respective years was  $109 million,  $99 million, and  $100 million. Stock-Based Compensation Plans We had two stock-based compensation plans in place at December 31, 2010: the Lockheed Martin Amended and Restated 2003 Incentive Performance Award Plan (the Award Plan) and the Lockheed Martin Directors Equity Plan (the Directors Plan). Under the Award Plan, we have the right to grant key employees stock-based incentive awards, including options to purchase common stock, stock appreciation rights, restricted stock, or stock units. Employees also may receive cash-based incentive awards. We evaluate the types and mix of stock-based incentive awards on an ongoing basis and may vary the mix based on our overall strategy regarding compensation. Under the Award Plan, the exercise price of options to purchase common stock may not be less than 100% of the market value of our stock on the date of grant. No award of stock options may become fully vested prior to the second anniversary of the grant, and no portion of a stock option grant may become vested in less than one year, except for 1.5 million stock options that are specifically exempted from vesting restrictions. The minimum vesting period for restricted stock or stock units payable in stock is three years. Award agreements may provide for shorter vesting periods or vesting following termination of employment in the case of death, disability, divestiture, retirement, change of control, or layoff. The Award Plan does not impose any minimum vesting periods on other types of awards. The maximum term of a stock option or any other award is 10 years. We generally recognize compensation cost for stock options ratably over the three-year vesting period for active, non-retirement eligible employees. For active, retirement-eligible employees or, those who have attained age 55 with five years of service, we generally recognize expense over the initial one-year vesting period. When an option holder becomes retirement eligible, we accelerate the recognition of any expense not previously recognized for options held for at least one year. We use the Black-Scholes option pricing model to estimate the fair value of stock options. We record restricted stock units (RSUs) issued under the Award Plan based on the market value of our common stock on the date of the award. We recognize the related compensation expense over the vesting period. Employees who are granted RSUs receive the restricted shares and dividend-equivalent cash payments; however, the shares are not issued, and the employees may not sell or transfer shares prior to vesting and have no voting rights until the RSUs vest, generally three years from the date of the award.   Under the Directors Plan, directors receive approximately 50% of their annual compensation in the form of equity-based compensation. Each director may elect to receive his or her equity-based compensation in the form of stock units that track investment returns to changes in value of our common stock with dividends reinvested, options to purchase common stock, or a combination of the two. Under the Directors Plan, options to purchase common stock have an exercise price of 100% of the market value of the underlying stock on the date of grant. Stock options and stock units issued under the Directors Plan vest 50% on June 30 following the date of grant and 50% on December 31 following the date of grant, except in certain circumstances. The maximum term of a stock option is 10 years. Our stockholders have approved the Award Plan and the Directors Plan, as well as the number of shares of our common stock authorized for issuance under these plans. At December 31, 2010, inclusive of the shares reserved for outstanding stock options and RSUs, we had 35 million shares reserved for issuance under our stock option and award plans. At December 31, 2010, 7 million of the shares reserved for issuance remained available for grant under the plans. We issue new shares upon the exercise of stock options or when restrictions on RSUs have been satisfied. 2010 Activity Stock Options The following table summarizes stock option activity during 2010:         Number of Stock Options (In thousands)     Weighted Average Exercise Price      Weighted Average Remaining Contractual Life (In years)      Aggregate Intrinsic Value (In millions)   Outstanding at December 31, 2009      22,550       $ 74.04          Granted      3,588        74.93          Exercised      (1,405 )      41.65          Terminated      (236 )      87.29          Outstanding at December 31, 2010      24,497        75.90         5.9        $ 137.0    Vested and unvested-expected-to-vest at December 31, 2010      24,391        75.89         5.9         137.0    Vested at December 31, 2010      16,943        72.88         4.8         137.0    Stock options vest over three years and have 10-year terms. Exercise prices of stock options awarded for all periods were equal to the market price of the stock on the date of grant. The following table pertains to stock options that were granted, vested, and exercised in 2010, 2009, and 2008:       (In millions, except for grant-date fair value of stock options)    2010      2009      2008   Weighted average grant-date fair value of stock options granted     $ 14.05        $ 14.91        $ 19.31    Aggregate fair value of all the stock options that vested      71         72         78    Aggregate intrinsic value of all of the stock options exercised      50         37         263    We estimate the fair value for stock options at the date of grant using the Black-Scholes option pricing model, which requires us to make certain assumptions. We estimate volatility based on the historical volatility of our daily stock price over the past five years, which is commensurate with the expected life of the options. We base the average expected life on the contractual term of the stock option, historical trends in employee exercise activity, and post-vesting employment termination trends. We base the risk-free interest rate on U.S. Treasury zero-coupon issues with a remaining term equal to the expected life assumed at the date of grant. We estimate forfeitures at the date of grant based on historical experience. The impact of forfeitures is not material. We used the following weighted average assumptions in the Black-Scholes option pricing model to determine the fair values of stock-based compensation awards during 2010, 2009, and 2008:         2010     2009     2008   Risk-free interest rate      2.49 %      1.69 %      2.83 %  Dividend yield      3.40 %      2.30 %      1.70 %  Volatility factors      0.272        0.244        0.195    Expected option life      5 years        5 years        5 years      RSUs The following table summarizes activity related to nonvested RSUs during 2010:         Number of RSUs (In thousands)     Weighted Average Grant-Date Fair Value Per Share   Nonvested at December 31, 2009      2,969       $ 91.06    Granted      1,943        74.68    Vested      (971 )      92.85    Terminated      (185 )      82.84    Nonvested at December 31, 2010      3,756        82.53    Summary of 2010 Activity As of December 31, 2010, we had  $167 million of unrecognized compensation cost related to nonvested stock options and RSUs. We expect that cost to be recognized over a weighted average period of 1.6 years. We received cash from the exercise of stock options totaling  $59 million,  $40 million, and  $248 million during 2010, 2009, and 2008. In addition, we realized tax benefits of  $47 million,  $56 million, and  $111 million from stock-based compensation activities during 2010, 2009, and 2008.

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Legal Proceedings, Commitments, and Contingencies	12 Months Ended
Dec. 31, 2010
Legal Proceedings, Commitments, and Contingencies
Legal Proceedings, Commitments, and Contingencies	Note 14 – Legal Proceedings, Commitments, and Contingencies We are a party to or have property subject to litigation and other proceedings, including matters arising under provisions relating to the protection of the environment. We believe the probability is remote that the outcome of these matters will have a material adverse effect on the Corporation as a whole, notwithstanding that the unfavorable resolution of any matter may have a material effect on our net earnings in any particular quarter. Among the factors that we consider in this assessment are the nature of existing legal proceedings and claims, the asserted or possible damages or loss contingency (if estimable), the progress of the case, existing law and precedent, the opinions or views of legal counsel and other advisers, the experience of the Corporation in similar cases and the experience of other companies, the facts available to us at the time of assessment, and how we intend to respond to the proceeding or claim. Our assessment of these factors may change over time as individual proceedings or claims progress. Unless otherwise indicated, a range of loss associated with any individual legal proceeding set forth below reasonably cannot be estimated. We cannot predict the outcome of legal proceedings with certainty. These matters include the following items that have been previously reported. Legal Proceedings On June 24, 2009, the U.K. Ministry of Defence (MoD) sent us a letter alleging that we were in default on the "Soothsayer" contract under which we were providing electronic warfare equipment to the British military. The total value of the contract is UK £144 million, of which UK £39 million has been paid to date (representing approximately US  $225 million and US  $61 million, based on the exchange rate as of December 31, 2010). The MoD has demanded repayment of amounts paid under the contract, liquidated damages of UK £2 million (representing approximately US  $3 million based on the exchange rate as of December 31, 2010), interest on those amounts, and has reserved the right to collect any excess future re-procurement costs. We dispute the MoD's position. We have commenced an arbitration proceeding against the MoD pursuant to the contract terms and are seeking damages for wrongful termination of the contract. On April 24, 2009, we filed a declaratory judgment action against the N.Y. Metropolitan Transportation Authority and its Capital Construction Company (collectively, the MTA) asking the U.S. District Court for the Southern District of N.Y. to find that the MTA is in material breach of our agreement based on the MTA's failure to provide access to sites where work must be performed and customer-furnished equipment necessary to complete the contract. The contract has a total value of  $323 million, of which  $241 million has been paid to date. The MTA filed an answer and counterclaim alleging that we breached the contract, and subsequently terminated the contract for alleged default. The MTA is seeking monetary damages and other relief under the contract, including the cost to complete the contract and potential re-procurement costs. We dispute the MTA's allegations and are defending against them. Discovery is proceeding in the action. On November 30, 2007, the Department of Justice (DoJ) filed a complaint in partial intervention in a lawsuit filed under the qui tam provisions of the Civil False Claims Act in the U.S. District Court for the Northern District of Texas, United States ex rel. Becker and Spencer v. Lockheed Martin Corporation et al., alleging that we should have known that a subcontractor falsified and inflated invoices submitted to us that were passed through to the government. The DoJ is seeking approximately  $80 million in damages, including interest but excluding potential penalties under the False Claims Act. We dispute the allegations and are defending against them. On September 11, 2006, we and Lockheed Martin Investment Management Company (LMIMCo), our wholly-owned subsidiary, were named as defendants in a lawsuit filed in the U.S. District Court for the Southern District of Illinois, seeking to represent a class of purportedly similarly situated participants and beneficiaries in our Salaried Savings Plan and the Hourly Savings Plan (the Plans). Plaintiffs allege that we or LMIMCo caused the Plans to pay expenses that were higher than reasonable by, among other actions, permitting service providers of the Plans to engage in revenue sharing, paying investment management fees for the company stock funds, and causing the company stock funds to hold cash for liquidity, thus reducing the return on those funds. The plaintiffs further allege that we or LMIMCo failed to disclose information appropriately relating to the fees associated with managing the Plans. In August 2008, plaintiffs filed an amended complaint, adding allegations that we or LMIMCo breached fiduciary duties under ERISA by providing inadequate disclosures with respect to the Stable Value Fund offered under our 401(k) plans. In April 2009, the Judge dismissed the plaintiffs' claims that were based on revenue sharing but let stand the claims about the company stock funds, the Stable Value Fund, and the overall fees paid by the plans. The Judge also certified a class for each plan for the claims concerning the Stable Value Fund and the overall fees paid by the plans. We are appealing that order. The complaint does not allege a specific calculation of damages, and we cannot reasonably estimate the possible loss, or range of loss, which could be incurred if the plaintiff were to prevail in the allegations, but believe that we have substantial defenses. We dispute the allegations and are defending against them. On August 28, 2003, the DoJ filed complaints in partial intervention in two lawsuits filed under the qui tam provisions of the Civil False Claims Act in the United States District Court for the Western District of Kentucky, United States ex rel. Natural Resources Defense Council, et al., v. Lockheed Martin Corporation, et al., and United States ex rel. John D. Tillson v. Lockheed Martin Energy Systems, Inc., et al. The DoJ alleges that we committed violations of the Resource Conservation and Recovery Act at the Paducah Gaseous Diffusion Plant by not properly handling, storing, and transporting hazardous waste and that we violated the False Claims Act by misleading Department of Energy officials and state regulators about the nature and extent of environmental noncompliance at the plant. The complaint does not allege a specific calculation of damages, and we cannot reasonably estimate the possible loss, or range of loss, which could be incurred if the plaintiff were to prevail in the allegations, but believe that we have substantial defenses. We dispute the allegations and are defending against them. As described in the "Environmental Matters" discussion below, we are subject to federal and state requirements for protection of the environment, including those for discharge of hazardous materials and remediation of contaminated sites. As a result, we are a party to or have property subject to various other lawsuits or proceedings involving environmental matters and remediation obligations. This includes the litigation we have been in with certain residents of Redlands, California since 1997 before the California Superior Court for San Bernardino County regarding allegations of personal injury, property damage, and other tort claims on behalf of individuals arising from our alleged contribution to regional groundwater contamination. In 2006, the California Court of Appeal dismissed the plaintiffs' punitive damages claim. In 2008, the trial court dismissed the remaining first tier plaintiffs, ending the first round of individual trials. The dismissal was affirmed by both the California Court of Appeal and the California Supreme Court. The parties are now working with the trial court to establish the procedures for the litigation of the next round of individual plaintiffs, and pre-trial proceedings are now underway. The complaint does not allege a specific calculation of damages, and we cannot reasonably estimate the possible loss, or range of loss, which could be incurred if the plaintiff were to prevail in the allegations, but believe that we have substantial defenses. We dispute the allegations and are defending against them. Environmental Matters We are involved in environmental proceedings and potential proceedings relating to soil and groundwater contamination, disposal of hazardous waste, and other environmental matters at several of our current or former facilities, or at third-party sites where we have been designated as a potentially responsible party (PRP). At December 31, 2010 and 2009, the aggregate amount of liabilities recorded relative to environmental matters was  $935 million and  $877 million. Approximately  $807 million and  $748 million are recorded in other liabilities on the Balance Sheets, with the remainder recorded in other current liabilities. A portion of environmental costs is eligible for future recovery in the pricing of our products and services on U.S. Government contracts. We have recorded assets totaling  $810 million and  $740 million at December 31, 2010 and 2009 for the estimated future recovery of these costs, as we consider the recovery probable based on government contracting regulations and our history of receiving reimbursement for such costs. Approximately  $699 million and  $630 million are recorded in other assets on the Balance Sheets, with the remainder recorded in other current assets.   Environmental cleanup activities usually span several years, which make estimating liabilities a matter of judgment because of such factors as changing remediation technologies, assessments of the extent of contamination, and continually evolving regulatory environmental standards. We consider these and other factors in estimates of the timing and amount of any future costs that may be required for remediation actions, which results in the calculation of a range of estimates for a particular environmental site. We perform quarterly reviews of the status of our environmental sites and the related liabilities and assets. We record a liability when it is probable that a liability has been incurred and the amount can be reasonably estimated. The amount of liability recorded is based on our best estimate of the costs to be incurred for remediation at a particular site within a range of estimates for that site or, in cases where no amount within the range is better than another, we record an amount at the low end of the range. We do not discount the recorded liabilities, as the amount and timing of future cash payments are not fixed or cannot be reliably determined. We cannot reasonably determine the extent of our financial exposure in all cases at this time. There are a number of former operating facilities that we are monitoring or investigating for potential future remediation. In some cases, although a loss may be probable, it is not possible at this time to reasonably estimate the amount of any obligation for remediation activities because of uncertainties with respect to assessing the extent of the contamination or the applicable regulatory standard. We also are pursuing claims for contribution to site cleanup costs against other PRPs, including the U.S. Government. In January 2011, both the U.S. Environmental Protection Agency and the California Office of Environmental Health Hazard Assessment announced plans to regulate two chemicals, perchlorate and hexavalent chromium, to a level that is expected to be substantially lower than the existing standard established in California. The rulemaking process is a lengthy one and may take one or more years to complete. If a substantially lower standard is adopted, we would expect a material increase in our estimates for remediation at several existing sites. We are conducting remediation activities, including under various consent decrees and orders relating to soil or groundwater contamination at certain sites of former or current operations. Under an agreement related to our Burbank and Glendale, California sites, the U.S. Government reimburses us an amount equal to approximately 50% of expenditures for certain remediation activities in its capacity as a PRP under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA). Letters of Credit, Surety Bonds, and Third-Party Guarantees We have entered into standby letters of credit, surety bonds, and third-party guarantees with financial institutions and other third parties primarily relating to advances received from customers and/or the guarantee of future performance on certain contracts. Letters of credit and surety bonds are generally available for draw down in the event we do not perform. In some cases, we may guarantee the contractual performance of third parties such as joint venture partners. We have total outstanding letters of credit, surety bonds, and third-party guarantees aggregating  $4.2 billion and  $3.6 billion at December 31, 2010 and 2009. Of these amounts, approximately  $1.0 billion and  $656 million relate to third-party guarantees. Approximately 85% of the  $1.0 billion in third-party guarantees outstanding at December 31, 2010 related to guarantees of the contractual performance of joint ventures to which we are a party. This amount represents our estimate of the maximum amount we would expect to incur upon the contractual non-performance of our joint venture partners. We evaluate the reputation, technical capabilities, and credit quality of potential joint venture partners. In addition, we generally have cross-indemnities in place that may enable us to recover amounts that may be paid on behalf of a joint venture partner. We believe our current joint venture partners will be able to perform their obligations, as they have done through December 31, 2010, and that it will not be necessary to make payments under the guarantees. United Launch Alliance In connection with our ownership of United Launch Alliance, L.L.C. (ULA), we and The Boeing Company (Boeing) each committed to provide up to  $200 million in financial support to ULA, as required, until at least December 1, 2011. To satisfy this commitment, we had a revolving credit agreement with ULA in place through September 26, 2010. No amounts had been drawn on the credit agreement through that date.   On September 27, 2010, ULA entered into with a group of banks its own  $400 million revolving credit agreement which expires on October 1, 2013. At the same time, the revolving credit agreement we and Boeing had in place was terminated. The new revolving credit agreement satisfies Boeing's and our commitment to provide financial support of up to  $200 million each to ULA so long as the total amount of the new agreement remains at  $400 million or above until at least December 1, 2011. We and Boeing have received distributions totaling  $232 million each which are subject to agreements between us, Boeing, and ULA, whereby, if ULA does not have sufficient cash resources and/or credit capacity to make payments under the inventory supply agreement it has with Boeing, both we and Boeing would provide to ULA, in the form of an additional capital contribution, the level of funding required for ULA to make those payments. Any such capital contributions would not exceed the amount of the distributions subject to the agreements. We currently believe that ULA will have sufficient operating cash flows and credit capacity to meet its obligations such that we would not be required to make a contribution under these agreements. In addition, both we and Boeing have cross-indemnified ULA related to certain financial support arrangements (e.g., letters of credit, surety bonds, or foreign exchange contracts provided by either party) and guarantees by us and Boeing of the performance and financial obligations of ULA under certain launch service contracts. We believe ULA will be able to fully perform its obligations, as it has done through December 31, 2010, and that it will not be necessary to make payments under the cross-indemnities. Our 50% ownership share of ULA's net assets exceeded the book value of our investment by approximately  $395 million, which we are recognizing as income ratably over 10 years. This yearly amortization and our share of ULA's net earnings are reported as equity in net earnings (losses) of equity investees in other income (expense), net on the Statements of Earnings. Our investment in ULA totaled  $513 million and  $454 million at December 31, 2010 and 2009.

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Fair Value Measurements	12 Months Ended
Dec. 31, 2010
Fair Value Measurements
Fair Value Measurements	Note 15 – Fair Value Measurements The accounting standard for fair value measurements defines fair value, establishes a market-based framework or hierarchy for measuring fair value, and expands disclosures about fair value measurements. The standard is applicable whenever assets and liabilities are measured and included in the financial statements at fair value. The fair value hierarchy established in the standard prioritizes the inputs used in valuation techniques into three levels as follows:     •   Level 1 – Observable inputs – quoted prices in active markets for identical assets and liabilities. Level 1 assets in the following table include equity securities and interests in mutual funds which are valued using quoted market prices.     •   Level 2 – Observable inputs other than the quoted prices in active markets for identical assets and liabilities – includes quoted prices for similar instruments, quoted prices for identical or similar instruments in inactive markets, and amounts derived from valuation models where all significant inputs are observable in active markets. Level 2 assets in the following table include U.S. Government securities, corporate debt securities, U.S. Government-sponsored enterprise securities, mortgage-backed securities, and other securities which are valued based on inputs other than quoted prices that are observable for the asset (e.g., interest rates and yield curves observable at commonly quoted intervals). The Level 2 derivative assets and liabilities relate to foreign currency exchange contracts and are valued based on observable market prices, but are not exchanged in an active market. See Note 1 under the caption "Derivative financial instruments" for further information related to our derivative instruments.     •   Level 3 – Unobservable inputs – includes amounts derived from valuation models where one or more significant inputs are unobservable and require us to develop relevant assumptions. At December 31, 2010 and 2009, we have no assets or liabilities measured and recorded at fair value on a recurring basis that are categorized as Level 3, or that were transferred in or out of the Level 3 category during 2010 and 2009.   The following table presents assets and liabilities measured and recorded at fair value on our Balance Sheets on a recurring basis and their level within the fair value hierarchy:       (In millions)    Level 1      Level 2      Balance as of December 31, 2010   Assets          Equity securities     $ 86        $ —          $ 86    Mutual funds      450         —           450    U.S. Government securities      —           719         719    Corporate debt securities      —           34         34    U.S. Government-sponsored enterprise securities      —           31         31    Mortgage-backed securities      —           24         24    Other securities      —           15         15    Derivative assets      —           26         26    Liabilities          Derivative liabilities      —           33         33          (In millions)    Level 1      Level 2      Balance as of December 31, 2009   Assets          Equity securities     $ 89        $ —          $ 89    Mutual funds      428         —           428    U.S. Government securities      —           412         412    Corporate debt securities      —           80         80    U.S. Government-sponsored enterprise securities      —           60         60    Mortgage-backed securities      —           26         26    Other securities      —           8         8    Derivative assets      —           21         21    Liabilities          Derivative liabilities      —           23         23    Our cash equivalents include highly liquid instruments with original maturities of 90 days or less. Due to the short maturity of these instruments, the carrying amount on our Balance Sheets approximates fair value. Our accounts receivable and accounts payable are carried at cost, which approximates fair value. The estimated fair values of our long-term debt instruments at December 31, 2010 and 2009, aggregated approximately  $6,211 million and  $5,926 million, compared with a carrying amount of approximately  $5,524 million and  $5,403 million, which excludes the  $505 million and  $351 million unamortized discount. The fair values were estimated based on quoted market prices of debt with terms and due dates similar to our long-term debt instruments. In the fourth quarter of 2010, we recorded an impairment charge of  $109 million in connection with our decision to sell PAE (see Note 2). The impairment charge, which was determined using a Level 3 valuation that was based on inputs and analyses used to estimate the expected net proceeds from the sale transaction, reduced the carrying value of PAE to equal the expected net proceeds.

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Leases	12 Months Ended
Dec. 31, 2010
Leases
Leases	Note 16 – Leases We rent certain equipment and facilities under operating leases. Our total rental expense under operating leases was  $399 million,  $373 million, and  $360 million for 2010, 2009, and 2008. Future minimum lease commitments at December 31, 2010 for all operating leases that have a remaining term of more than one year were  $1.3 billion ( $300 million in 2011,  $233 million in 2012,  $183 million in 2013,  $142 million in 2014,  $117 million in 2015 and  $324 million in later years). Certain major plant facilities and equipment are furnished by the U.S. Government under short-term or cancelable arrangements.

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Summary of Quarterly Information	12 Months Ended
Dec. 31, 2010
Summary of Quarterly Information
Summary of Quarterly Information	Note 17 – Summary of Quarterly Information (Unaudited)        2010 Quarters (f)       (In millions, except per share data)    First ( a )  (h)      Second ( b )  (h)      Third ( c )      Fourth (d)   Net sales     $ 10,339        $ 11,295        $ 11,375        $ 12,794    Operating profit      959         1,121         889         1,128    Earnings from continuing operations      533         718         565         829    Earnings from discontinued operations      14         107         6         154    Net earnings      547         825         571         983    Basic earnings per share (g)      1.46         2.25         1.59         2.76    Diluted earnings per share (g)      1.45         2.22         1.57         2.73         2009 Quarters (f)       (In millions, except per share data)    First (h)      Second (h)      Third (e)      Fourth   Net sales     $ 10,085        $ 10,940        $ 10,767        $ 12,203    Operating profit      1,040         1,063         1,068         1,244    Earnings from continuing operations      657         720         786         836    Earnings from discontinued operations      9         14         11         (9 )  Net earnings      666         734         797         827    Basic earnings per share (g)      1.69         1.90         2.09         2.19    Diluted earnings per share (g)      1.68         1.88         2.07         2.17        (a) Earnings from continuing operations for the first quarter of 2010 included an increase in income tax expense resulting from legislation that eliminates the tax deduction for benefit costs reimbursed under Medicare Part D (see Note 9), which reduced net earnings by  $96 million ( $.25 per share).   (b) Earnings from discontinued operations for the second quarter of 2010 included a tax benefit of  $96 million due to the recognition of a deferred tax asset for PAE book and tax differences recorded when the decision was made to dispose of PAE (see Note 2).   (c) Earnings from continuing operations for the third quarter of 2010 included a charge of  $178 million to cost of sales related to the VESP (see Note 3), which reduced net earnings by  $116 million ( $.32 per share).   (d) Earnings from continuing operations for the fourth quarter of 2010 included a charge to cost of sales primarily related to our decision to consolidate certain Electronic Systems' operations (see Note 3), which reduced net earnings by  $27 million ( $.08 per share). Earnings from continuing operations for the fourth quarter of 2010 also increased by  $43 million ( $.12 per share) due to the recognition of a tax benefit related to the retroactive extension of the research and development tax credit from January 1, 2010 through December 31, 2011 (see Note 9). Earnings from discontinued operations for the fourth quarter of 2010 included a gain of  $184 million ( $.51 per share) from the sale of EIG, and a decrease of  $24 million ( $.07 per share) associated with the planned sale of PAE.   (e) Earnings from continuing operations for the third quarter of 2009 included a reduction in income tax expense resulting from the closure of IRS examinations for tax years 2005-2007, which increased net earnings by  $58 million ( $.15 per share).   (f) It is our practice to close the books and records on the Sunday prior to the end of the calendar quarter to align our financial closing with our business processes. This practice only affects interim periods, as our fiscal year ends on December 31.   (g) The sum of the quarterly earnings per share amounts for 2010 and 2009 do not equal the earnings per share amount included on the Statements of Earnings, primarily due to the timing of share repurchases during 2010 and 2009.   (h) Net sales and operating profit varies from the amount previously reported on Form 10-Q as a result of PAE and EIG being classified as discontinued operations in the second and third quarters of 2010, respectively.

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Significant Accounting Policies (Policy)	12 Months Ended
Dec. 31, 2010
Significant Accounting Policies
Organization	Organization – Lockheed Martin Corporation is a global security company that principally is engaged in the research, design, development, manufacture, integration, and sustainment of advanced technology systems and products. We also provide a broad range of management, engineering, technical, scientific, logistic, and information services. We serve both domestic and international customers with products and services that have defense, civil, and commercial applications, with our principal customers being agencies of the U.S. Government.
Basis of consolidation and classifications	Basis of consolidation and classifications – Our consolidated financial statements include the accounts of subsidiaries we control and other entities where we are the primary beneficiary. We eliminate intercompany balances and transactions in consolidation. Our receivables, inventories, customer advances, and certain amounts in other current liabilities primarily are attributable to long-term contracts or programs in progress for which the related operating cycles are longer than one year. In accordance with industry practice, we include these items in Current Assets and Current Liabilities. We have reclassified certain amounts for prior years to conform to the 2010 presentation.
Use of estimates	Use of estimates – We prepare our consolidated financial statements in conformity with U.S. generally accepted accounting principles (GAAP). In doing so, we are required to make estimates and assumptions that affect the reported amounts in the financial statements and accompanying notes. Our actual results may differ from those estimates.
Receivables	Receivables – Receivables include amounts billed and currently due from customers, and unbilled costs and accrued profits primarily related to revenues on long-term contracts that have been recognized for accounting purposes but not yet billed to customers. As we recognize those revenues, we reflect appropriate amounts of customer advances, performance-based payments, and progress payments as an offset to the related receivables balance.
Inventories	Inventories – We record inventories at the lower of cost or estimated net realizable value. Costs on long-term contracts and programs in progress represent recoverable costs incurred for production or contract-specific facilities and equipment, allocable operating overhead, advances to suppliers and, in the case of contracts with the U.S. Government, research and development and general and administrative expenses. Pursuant to contract provisions, agencies of the U.S. Government and certain other customers have title to, or a security interest in, inventories related to such contracts as a result of advances, performance-based payments, and progress payments. We reflect those advances and payments as an offset against the related inventory balances. We expense general and administrative costs related to products and services provided essentially under commercial terms and conditions as incurred. We determine the costs of other product and supply inventories by the first-in first-out or average cost methods.
Property, plant and equipment	Property, plant and equipment – We include property, plant, and equipment on our Balance Sheets principally at cost. We provide for depreciation and amortization on plant and equipment generally using accelerated methods during the first half of the estimated useful lives of the assets, and the straight-line method thereafter. The estimated useful lives of our plant and equipment generally range from 10 to 40 years for buildings and five to 15 years for machinery and equipment. We review the carrying values of long-lived assets for impairment if events or changes in the facts and circumstances indicate that their carrying values may not be recoverable. We assess impairment by comparing the estimated undiscounted future cash flows of the related asset to its carrying value. If an asset is determined to be impaired, we recognize an impairment charge in the current period for the difference between the fair value of the asset and its carrying value.
Goodwill	Goodwill – We evaluate goodwill for potential impairment annually on October 1, or if impairment indicators are present. Our evaluation includes comparing the fair value of a reporting unit, using a discounted cash flow methodology, to its carrying value including goodwill recorded by the reporting unit. If the carrying value exceeds the fair value, we measure impairment by comparing the derived fair value of goodwill to its carrying value, and any impairment determined is recorded in the current period. We define reporting units at the business segment level or one level below the business segment. The decrease in goodwill from 2009 to 2010 primarily was due to the sale of Enterprise Integration Group and the reclassification of Pacific Architects and Engineers, Inc.'s assets and liabilities to discontinued operations at December 31, 2010 (see Note 2).
Capitalized software	Capitalized software – We capitalize certain direct costs associated with the development or purchase of internal-use software. Expenditures are included in operating activities on our Statements of Cash Flows. The amounts capitalized are included in other assets on our Balance Sheets and amortized on a straight-line basis over the estimated useful life of the resulting software, which ranges from two to six years. We amortize capitalized internal-use software beginning when the asset is substantially ready for use. As of December 31, 2010 and 2009, capitalized software totaled  $899 million and  $887 million, net of accumulated amortization of  $1,097 million and  $948 million. Amortization expense related to capitalized software was  $149 million in 2010,  $152 million in 2009, and  $135 million in 2008.
Customer advances and amounts in excess of cost incurred	Customer advances and amounts in excess of cost incurred – We receive advances, performance-based payments, and progress payments from customers that may exceed costs incurred on certain contracts, including contracts with agencies of the U.S. Government. We classify such advances, other than those reflected as a reduction of receivables or inventories as discussed above, as Current Liabilities.
Postretirement benefit plans	Postretirement benefit plans – Most of our employees are covered by defined benefit pension plans, and we provide certain health care and life insurance benefits to eligible retirees (collectively, postretirement benefit plans). GAAP requires that the amounts we record related to our plans be computed using actuarial valuations that are based in part on certain key assumptions we make, including the discount rate, the expected long-term rate of return on plan assets, the rates of increase in future compensation levels, and health care cost trend rates, each as appropriate based on the nature of the plans. We recognize on a plan-by-plan basis the funded status of our postretirement benefit plans under GAAP as either an asset or liability on our Balance Sheets, with a corresponding adjustment to accumulated other comprehensive loss, net of tax, in stockholders' equity. The funded status is measured as the difference between the fair value of the plan's assets and the benefit obligation of the plan.
Environmental matters	Environmental matters – We record a liability for environmental matters when it is probable that a liability has been incurred and the amount can be reasonably estimated. The amount of liability recorded is based on our best estimate of the costs to be incurred for remediation at a particular site within a range of estimates for that site or, in cases where no amount within the range is better than another, we record an amount at the low end of the range. We do not discount the recorded liabilities, as the amount and timing of future cash payments are not fixed or cannot be reliably determined. We expect to include a substantial portion of environmental costs in net sales and cost of sales in future periods pursuant to U.S. Government agreement or regulation. At the time a liability is recorded for future environmental costs, we record an asset for estimated future recovery considered probable through the pricing of products and services to agencies of the U.S. Government. We include the portion of those costs expected to be allocated to our non-U.S. Government contracts or that is determined to be unallowable for pricing under U.S. Government contracts in cost of sales at the time the liability is established.
Sales and earnings	Sales and earnings – We record net sales and estimated profits on a percentage-of-completion (POC) basis for cost-reimbursable and fixed-price design, development, and production (DD&P) contracts. Revenue is recorded on time-and-materials contracts as the work is performed based on agreed-upon hourly rates and allowable costs. The POC method for DD&P contracts depends on the nature of the products provided under the contract. For example, for contracts that require us to perform a significant level of development effort in comparison to the total value of the contract and/or to deliver less than substantial quantities of similar items, sales are recorded using the cost-to-cost method to measure progress toward completion. Under the cost-to-cost method of accounting, we recognize sales and an estimated profit as costs are incurred based on the proportion that the incurred costs bear to total estimated costs. For contracts that require us to provide a substantial number of similar items without a significant level of development effort, we record sales and profit on a percentage-of-completion basis using units-of-delivery as the basis to measure progress toward completing the contract. When adjustments in estimated contract revenues or estimated costs at completion are required on DD&P contracts, any changes from prior estimates are recognized in the current period for the inception-to-date effect of the changes. When estimates of total costs to be incurred on a contract exceed total estimates of revenue to be earned, a provision for the entire loss on the contract is recorded in the period in which the loss is determined. Award fees and incentives, as well as penalties related to contract performance, are considered in estimating sales and profit rates on DD&P contracts. We consider estimates of award fees in estimating sales and profit rates based on past experience and anticipated performance. We record incentives or penalties when there is sufficient information to assess anticipated contract performance. We do not recognize incentive provisions that increase or decrease earnings based solely on a single significant event until the event occurs. We only include amounts representing contract change orders, claims, or other items in contract value when they can be reliably estimated and realization is probable. For cost-reimbursable contracts for services that provide for award and incentive fees, we record net sales as services are performed, except for the award and incentive fees. Award and incentive fees are recorded when they are fixed or determinable, generally at the date the amount is communicated to us by the customer. This approach results in the recognition of such fees at contractual intervals (typically every six months) throughout the contract and is dependent on the customer's processes for notification of awards and issuance of formal notifications. Under a fixed-price service contract, we get paid a predetermined fixed amount for a specified scope of work and generally have full responsibility for the costs associated with the contract and the resulting profit or loss. We record net sales under fixed-price service contracts on a straight-line basis over the period of contract performance, unless evidence suggests that net sales are earned or the obligations are fulfilled in a different pattern. Costs for all service contracts are expensed as incurred. Change in Accounting Principle – Effective January 1, 2011, we changed our methodology for recognizing net sales for service contracts with the U.S. Government. We will recognize sales on those contracts using the POC method similar to our DD&P contracts as described above. As such, we expect that approximately 95% of our consolidated net sales will be recognized using the POC method. We believe the POC method is preferable, as consistent revenue recognition application across all contracts with the U.S. Government better reflects the underlying economics of those contracts and aligns our financial reporting with others in our industry. Beginning with our first quarter 2011 financial statements, all prior periods presented will be retrospectively adjusted to apply the new method of accounting. The effect of this change is expected to be less than one percent of net sales and segment operating profit in 2011, and was not material to prior periods.
Research and development and similar costs policy	Research and development and similar costs – Except for certain arrangements described below, we account for independent research and development costs as part of the general and administrative costs that are allocated among all of our contracts and programs in progress under U.S. Government contractual arrangements. Costs for product development initiatives we sponsor that are not otherwise allocable are charged to expense when incurred. Under some arrangements in which a customer shares in product development costs, our portion of unreimbursed costs is expensed as incurred. Independent research and development costs charged to cost of sales totaled  $638 million in 2010,  $724 million in 2009, and  $698 million in 2008. Costs we incur under customer-sponsored research and development programs pursuant to contracts are included in net sales and cost of sales.
Investments in marketable securities	Investments in marketable securities – Investments in marketable securities consist of debt and equity securities and are classified as either available-for-sale securities or trading securities. If classified as available-for-sale securities, unrealized gains and losses are reflected net of income taxes in accumulated other comprehensive loss on the Statements of Stockholders' Equity. If classified as trading securities, unrealized gains and losses are recorded in other non-operating income (expense), net on the Statements of Earnings. If declines in the value of available-for-sale securities are determined to be other than temporary, a loss is recorded in earnings in the current period. We make such determinations by considering, among other factors, the length of time the fair value of the investment has been less than the carrying value, future business prospects for the investee, and information regarding market and industry trends for the investee's business, if available. For purposes of computing realized gains and losses on marketable securities, we determine cost on a specific identification basis. Available-for-sale securities are recorded at fair value and classified as short-term investments on the Balance Sheets. Our available-for-sale securities as of December 31, 2010 and 2009 consisted of U.S. Treasury securities with a fair value of  $502 million and  $300 million, and corporate debt securities of  $14 million and  $46 million. The cost basis of these securities was not materially different from their respective fair value in either year. Substantially all of our available-for-sale securities are contractually scheduled to mature in 2011. As of December 31, 2010 and 2009, the fair value of our trading securities totaled  $843 million and  $757 million and was included in other assets on the Balance Sheets. Our trading securities are held in a Rabbi Trust, which includes investments to fund certain of our nonqualified deferred compensation plans. Net gains (losses) on marketable securities in 2010, 2009, and 2008 were  $56 million,  $110 million, and  $(158) million and were included in other non-operating income (expense), net on the Statements of Earnings. Included in these amounts are net unrealized gains (losses) on trading securities of  $24 million in 2010,  $115 million in 2009, and  $(98) million in 2008.
Equity method investments	Equity method investments – Investments where we have the ability to exercise significant influence over the investee are accounted for under the equity method of accounting and are included in other assets on the Balance Sheets. Significant influence typically exists if we have a 20% to 50% ownership interest in the investee. Under this method of accounting, our share of the net earnings or losses of the investee is included in operating profit in other income, net since the activities of the investee are closely aligned with the operations of the business segment holding the investment. We evaluate our equity method investments for impairment whenever events or changes in circumstances indicate that the carrying amounts of such investments may not be recoverable. If a decline in the value of an equity method investment is determined to be other than temporary, a loss is recorded in earnings in the current period. As of December 31, 2010 and 2009, our equity method investments totaled  $671 million and  $524 million and were included in other assets on the Balance Sheets. Our equity in net earnings related to these investments was  $312 million in 2010,  $278 million in 2009, and  $288 million in 2008.
Derivative financial instruments	Derivative financial instruments – We use derivative financial instruments to manage our exposure to fluctuations in foreign currency exchange rates. Foreign currency exchange contracts are entered into to manage the foreign currency exchange rate risk of forecasted foreign currency denominated cash receipts and cash payments. The majority of our foreign currency exchange contracts are designated as cash flow hedges. We also may use derivative financial instruments to manage our exposure to changes in interest rates. Our financial instruments that are subject to interest rate risk principally include fixed rate long-term debt. We do not hold or issue derivative financial instruments for trading or speculative purposes. We record derivatives at their fair value. The classification of gains and losses resulting from changes in the fair values of derivatives is dependent on our intended use of the derivative and its resulting designation. Adjustments to reflect changes in fair values of derivatives attributable to the effective portion of hedges that we consider highly effective hedges are either reflected in earnings and largely offset by corresponding adjustments to the hedged items, or reflected net of income taxes in accumulated other comprehensive loss until the hedged transaction is recognized in earnings. Changes in the fair value of the derivatives that are attributable to the ineffective portion of the hedges, or of derivatives that are not considered to be highly effective hedges, if any, are immediately recognized in earnings. The aggregate notional amount of the outstanding foreign currency exchange contracts at December 31, 2010 and 2009 was  $2.2 billion and  $1.9 billion. There were no interest rate derivatives outstanding at December 31, 2010 and 2009. The effect of our derivative instruments on our Statements of Earnings for the years ended December 31, 2010, 2009, and 2008, and on our Balance Sheets as of December 31, 2010 and 2009 was not material. See Note 15 for further discussion on the fair value measurements related to our derivative instruments.
Stock-based compensation policy	Stock-based compensation – We recognize compensation cost related to all share-based payments (stock options and restricted stock units) based on their estimated fair value at the date of grant.
Income taxes	Income taxes – We periodically assess our tax filing exposures related to periods that are open to examination. Based on the latest available information, we evaluate tax positions to determine whether the position will more likely than not be sustained upon examination by the Internal Revenue Service (IRS). If we determine that the tax position is more likely than not to be sustained, we record the largest amount of benefit that is more likely than not to be realized when the tax position is settled. If we cannot reach that determination, no benefit is recorded. We record interest and penalties related to income taxes as a component of income tax expense in our consolidated financial statements.
Comprehensive income (loss)	Comprehensive income (loss) – Comprehensive income (loss) and its components are presented on the Statements of Stockholders' Equity. Accumulated other comprehensive loss consisted of the following:       (In millions)    2010      2009   Postretirement benefit plan adjustments     $ (8,994 )      $ (8,564 )  Foreign currency translation adjustments      (17 )       (26 )  Other, net      1         (5 )  Accumulated other comprehensive loss     $ (9,010 )      $ (8,595 )
Recent accounting pronouncements	Recent accounting pronouncements – In October 2009, the Financial Accounting Standards Board (FASB) issued an accounting standard which revised its accounting guidance related to revenue arrangements with multiple deliverables. The standard relates to the determination of when the individual deliverables included in a multiple-element arrangement may be treated as separate units of accounting and modifies the manner in which the transaction consideration is allocated across the individual deliverables, thereby affecting the timing of revenue recognition. Also, the standard expands the disclosure requirements for revenue arrangements with multiple deliverables. The standard will be effective for us beginning on January 1, 2011, and will apply prospectively to certain multiple-element arrangements with non-U.S. Government customers entered into or materially modified after the adoption date. We do not expect the adoption of this accounting standard will have a material effect on our financial results.

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Significant Accounting Policies (Tables)	12 Months Ended
Dec. 31, 2010
Significant Accounting Policies
Accumulated Other Comprehensive Loss	(In millions)    2010      2009   Postretirement benefit plan adjustments     $ (8,994 )      $ (8,564 )  Foreign currency translation adjustments      (17 )       (26 )  Other, net      1         (5 )  Accumulated other comprehensive loss     $ (9,010 )      $ (8,595 )

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Discontinued Operations (Tables)	12 Months Ended
Dec. 31, 2010
Discontinued Operations
Schedule of Disposal Groups Including Discontinued Operations Income Statement Disclosures	(In millions)    2010      2009      2008   Net sales     $ 1,087        $ 1,195        $ 1,359    Earnings before income taxes      44         54         76    Earnings after income taxes     $ 24        $ 25        $ 50    Gain on sale of EIG      184         —           —      Adjustments from planned sale of PAE      73         —           —      Earnings from discontinued operations     $ 281        $ 25        $ 50
Schedule of Disposal Groups Including Discontinued Operations Balance Sheet Disclosures	(In millions)    December 31, 2010   Assets    Receivables     $ 267    Goodwill and other assets      132    Assets of Discontinued Operation Held for Sale     $ 399    Liabilities    Accounts payable and accrued expenses     $ 122    Other liabilities      82    Liabilities of Discontinued Operation Held for Sale     $ 204

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Earnings Per Share (Tables)	12 Months Ended
Dec. 31, 2010
Earnings Per Share
Earnings Per Share Computation	(In millions, except per share data)    2010      2009      2008   Net earnings:          Earnings from continuing operations     $ 2,645        $ 2,999        $ 3,167    Earnings from discontinued operations      281         25         50    Net earnings for basic and diluted computations     $ 2,926        $ 3,024        $ 3,217    Weighted average common shares outstanding:          Average number of common shares outstanding for basic computations      364.2         384.8         399.7    Dilutive stock options and restricted stock units      4.1         4.1         9.7    Average number of common shares outstanding for diluted computations      368.3         388.9         409.4    Earnings per common share:          Basic          Continuing operations     $ 7.26        $ 7.79        $ 7.92    Discontinued operations      .77         .07         .13    Basic earnings per common share     $ 8.03        $ 7.86        $ 8.05    Diluted          Continuing operations     $ 7.18        $ 7.71        $ 7.74    Discontinued operations      .76         .07         .12    Diluted earnings per common share     $ 7.94        $ 7.78        $ 7.86

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Information on Business Segments (Tables)	12 Months Ended
Dec. 31, 2010
Information on Business Segments
Schedule of Segment Reporting Information, by Segment	(In millions)    2010      2009      2008   Net sales          Aeronautics     $ 13,235        $ 12,201        $ 11,473    Electronic Systems      14,363         13,532         12,803    Information Systems & Global Solutions      9,959         9,608         9,069    Space Systems      8,246         8,654         8,027    Total     $ 45,803        $ 43,995        $ 41,372    Operating profit (a)          Aeronautics     $ 1,502        $ 1,577        $ 1,433    Electronic Systems      1,712         1,660         1,583    Information Systems & Global Solutions      890         895         919    Space Systems      972         972         953    Total business segments      5,076         5,104         4,888    Voluntary executive separation and other charges (b)      (220 )       —           —      Other unallocated Corporate income (expense), net (c)      (759 )       (689 )       161    Operating profit     $ 4,097        $ 4,415        $ 5,049    Intersegment revenue          Aeronautics     $ 128        $ 210        $ 147    Electronic Systems      989         860         662    Information Systems & Global Solutions      912         827         803    Space Systems      124         122         203    Total     $ 2,153        $ 2,019        $ 1,815    Depreciation and amortization of plant and equipment          Aeronautics     $ 205        $ 198        $ 190    Electronic Systems      237         245         257    Information Systems & Global Solutions      63         66         61    Space Systems      186         182         166    Total business segments      691         691         674    Corporate activities      58         59         53    Total     $ 749        $ 750        $ 727    Expenditures for property, plant and equipment          Aeronautics     $ 271        $ 248        $ 227    Electronic Systems      260         266         275    Information Systems & Global Solutions      53         52         72    Space Systems      181         210         231    Total business segments      765         776         805    Corporate activities      55         76         121    Total     $ 820        $ 852        $ 926      (a) Operating profit included equity in net earnings (losses) of equity investees as follows:       (In millions)    2010      2009      2008   Aeronautics     $ 7        $ 9        $ 21    Electronic Systems      50         53         43    Space Systems      259         218         224    Total business segments      316         280         288    Corporate activities      (4 )       (2 )       —      Total     $ 312        $ 278        $ 288      (b) Voluntary executive separation and other charges included the charges associated with the VESP and MS2's consolidation of facilities (see Note 3). c) Other unallocated Corporate income (expense), net included the following:     (In millions)    2010      2009      2008   FAS/CAS pension adjustment     $ (454 )      $ (456 )      $ 128    Items not considered in segment operating performance      —           —           193    Stock-based compensation      (168 )       (154 )       (155 )  Other      (137 )       (79 )       (5 )  Total     $ (759 )      $ (689 )      $ 161    See Note 3 for information regarding the items not considered in segment operating performance.      (In millions)    2010      2009   Assets (a)       Aeronautics     $ 5,230        $ 4,356    Electronic Systems      9,972         10,080    Information Systems & Global Solutions      5,524         6,443    Space Systems      3,014         3,097    Total business segments      23,740         23,976    Corporate assets (b)      10,928         11,135    Assets of discontinued operation held for sale      399         —      Total     $ 35,067        $ 35,111    Goodwill       Aeronautics     $ 148        $ 148    Electronic Systems      5,601         5,595    Information Systems & Global Solutions      3,363         3,712    Space Systems      493         493    Total     $ 9,605        $ 9,948    Customer advances and amounts in excess of costs incurred       Aeronautics     $ 2,773        $ 2,389    Electronic Systems      2,408         2,297    Information Systems & Global Solutions      195         172    Space Systems      343         191    Total     $ 5,719        $ 5,049      (a) We have no significant long-lived assets located in foreign countries. (b) Corporate assets primarily include cash and cash equivalents, short-term investments, deferred income taxes, the prepaid pension asset, deferred environmental assets, and investments held in a Rabbi Trust.
Net Sales by Customer Category	In millions)    2010      2009      2008   U.S. Government          Aeronautics     $ 10,720        $ 10,151        $ 9,268    Electronic Systems      10,242         9,699         9,405    Information Systems & Global Solutions      9,437         9,128         8,588    Space Systems      7,995         8,405         7,685                               Total     $ 38,394        $ 37,383        $ 34,946                               Foreign governments (a) (b)          Aeronautics     $ 2,478        $ 1,990        $ 2,043    Electronic Systems      3,749         3,432         3,049    Information Systems & Global Solutions      417         256         160    Space Systems      20         27         15                               Total     $ 6,664        $ 5,705        $ 5,267                               Commercial and Other (b)          Aeronautics     $ 37        $ 60        $ 162    Electronic Systems      372         401         349    Information Systems & Global Solutions      105         224         321    Space Systems      231         222         327                               Total     $ 745        $ 907        $ 1,159                                   $ 45,803        $ 43,995        $ 41,372                                 (a) Sales made to foreign governments through the U.S. Government, or "foreign military sales," are included in the "Foreign governments" category. (b) International sales, including export sales reflected in the "Foreign governments" and "Commercial and Other" categories, were  $7.1 billion in 2010,  $6.3 billion in 2009, and  $5.7 billion in 2008.

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Receivables (Tables)	12 Months Ended
Dec. 31, 2010
Receivables
Schedule of Receivables by Component	(In millions)    2010      2009   U.S. Government       Amounts billed     $ 1,360        $ 1,648    Unbilled costs and accrued profits      3,127         2,718    Less: customer advances and progress payments      (591 )       (486 )         3,896         3,880    Foreign governments and commercial       Amounts billed      461         598    Unbilled costs and accrued profits      1,649         1,811    Less: customer advances      (249 )       (228 )         1,861         2,181          $ 5,757        $ 6,061

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Inventories (Tables)	12 Months Ended
Dec. 31, 2010
Inventories
Schedule of Inventories	(In millions)    2010      2009   Work-in-process, primarily related to long-term contracts and programs in progress     $ 6,523        $ 5,565    Less: customer advances and progress payments      (4,788 )       (3,941 )       1,735         1,624    Other inventories      643         559          $ 2,378        $ 2,183

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Property, Plant, and Equipment (Tables)	12 Months Ended
Dec. 31, 2010
Property, Plant, and Equipment
Schedule of Property, Plant, and Equipment	(In millions)    2010      2009   Land     $ 111        $ 112    Buildings      5,264         5,010    Machinery and equipment      6,583         6,283         11,958         11,405    Less: accumulated depreciation and amortization      (7,404 )       (6,885 )        $ 4,554        $ 4,520

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Income Taxes (Tables)	12 Months Ended
Dec. 31, 2010
Income Taxes
Provision for Federal and Foreign Income Tax Expense	(In millions)    2010      2009      2008   Federal income taxes:          Current     $ 589        $ 667        $ 1,378    Deferred      589         583         55    Total federal income taxes      1,178         1,250         1,433    Foreign income taxes:          Current      8         (4 )       26    Deferred      (5 )       (15 )       —      Total foreign income taxes      3         (19 )       26    Income tax expense     $ 1,181        $ 1,231        $ 1,459
Reconciliation of Income Tax Expense Computed Using the U S Statutory Federal Tax Rate To Actual Income Tax Expense	(In millions)    2010      2009      2008   Income tax expense at the U.S. federal statutory tax rate     $ 1,339        $ 1,481        $ 1,619    Increase (decrease) in tax expense:          U.S. manufacturing activity benefit      (110 )       (39 )       (67 )  Medicare Part D law change      96         —           —      Tax deductible dividends      (56 )       (49 )       (38 )  Research and development tax credit      (43 )       (43 )       (36 )  Other, net      (45 )       (119 )       (19 )  Income tax expense     $ 1,181        $ 1,231        $ 1,459
Components of Federal and Foreign Deferred Tax Assets and Liabilities	(In millions)    2010      2009   Deferred tax assets related to:       Accrued compensation and benefits     $ 877        $ 796    Pensions      3,642         3,664    Other postretirement benefit obligations      459         565    Contract accounting methods      419         391    Planned sale of PAE      179         —      Foreign company operating losses and credits      14         15    Valuation allowance      —           (13 )  Deferred tax assets, net      5,590         5,418    Deferred tax liabilities related to:       Goodwill and purchased intangibles      336         371    Property, plant and equipment      558         343    Exchanged debt securities and other (a)      189         111    Deferred tax liabilities      1,083         825    Net deferred tax assets (b)     $ 4,507        $ 4,593      (a) Includes deferred tax liabilities associated with the exchange of debt securities in 2010 (see Note 10) and 2006. (b) Includes net foreign current deferred tax liabilities, which are included on the Balance Sheets in other current liabilities.
Unrecognized Tax Benefits Related to Permanent and Temporary Tax Adjustments Exclusive of Interest	(In millions)    2010      2009   Balance at January 1     $ 217        $ 250    Tax positions related to the current year      73         39    Increase (decrease) related to tax positions in prior years:       Recognition of benefits from resolution of issues with IRS      —           (54 )  Reclassification to liabilities of discontinued operation held for sale      (29 )       —      Other, net      (16 )       —      Decreases related to settlements with taxing authorities:       Settlements with taxing authorities for prior years      —           (18 )  Advance payment for pending matters      (85 )       —      Balance at December 31     $ 160        $ 217

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Debt (Tables)	12 Months Ended
Dec. 31, 2010
Debt
Long-term Debt	(In millions)    Interest Rate     2010     2009   Notes due 3/14/2013      4.12 %     $ 500       $ 500    Debentures due 4/15/2013      7.38 %      150        150    Debentures due 5/1/2016      7.65 %      451        600    Notes due 11/15/2019      4.25 %      900        900    Debentures due 9/15/2023      7.00 %      200        200    Notes due 6/15/2024      8.38 %      167        167    Debentures due 6/15/2025      7.63 %      150        150    Debentures due 5/1/2026      7.75 %      275        423    Debentures due 12/1/2029      8.50 %      206        317    Debentures due 5/1/2036      7.20 %      97        300    Notes due 9/1/2036      6.15 %      1,079        1,079    Notes due 11/15/2039      5.50 %      600        600    Notes due 6/1/2040      5.72 %      728        —      Unamortized discount      N/A        (505 )      (351 )  Other      Various        21        17                  $ 5,019       $ 5,052
Old Notes Exchanged	Principal Amount Exchanged        (In millions)   Old Notes Exchanged    7.65% Debentures due 2016     $ 149    7.75% Debentures due 2026      148    8.50% Debentures due 2029      111    7.20% Debentures due 2036      203          $ 611

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Postretirement Benefit Plans (Tables)	12 Months Ended
Dec. 31, 2010
Reconciliation of Benefit Obligations, Plan Assets, and Unfunded Status Related to Our Postretirement Benefit Plans	(In millions)    Defined Benefit Pension Plans     Retiree Medical and Life Insurance Plans      2010     2009     2010     2009   Change in benefit obligations          Benefit obligations at beginning of year     $ 32,817       $ 30,421       $ 2,938       $ 2,812    Service cost      903        870        36        34    Interest cost      1,876        1,812        166        165    Benefits paid      (1,592 )      (1,510 )      (352 )      (366 )  Actuarial losses      2,032        1,153        105        106    Amendments      94        70        —          9    Divestitures/curtailments (a)      (357 )      1        (10 )      —      Medicare Part D subsidy      —          —          18        36    Participants' contributions      —          —          145        142    Benefit obligations at end of year     $ 35,773       $ 32,817       $ 3,046       $ 2,938    Change in plan assets          Fair value of plan assets at beginning of year     $ 22,154       $ 18,539       $ 1,630       $ 1,426    Actual return on plan assets      2,886        3,644        86        330    Benefits paid      (1,592 )      (1,510 )      (352 )      (366 )  Our contributions      2,240        1,482        311        60    Participants' contributions      —          —          145        142    Medicare Part D subsidy      —          —          18        36    Divestitures and other (a)      (343 )      (1 )      (5 )      2    Fair value of plan assets at end of year     $ 25,345       $ 22,154       $ 1,833       $ 1,630    Unfunded status of the plans     $ (10,428 )     $ (10,663 )     $ (1,213 )     $ (1,308 )  Amounts recognized in the Balance Sheets          Prepaid pension asset     $ 179       $ 160       $ —         $ —      Accrued postretirement benefit liabilities      (10,607 )      (10,823 )      (1,213 )      (1,308 )  Accumulated other comprehensive (income) loss (pre-tax) related to:          Net actuarial losses      12,263        11,809        684        564    Prior service cost (credit)      455        457        (37 )      (53 )    (a) Primarily reflects the transfer of assets and liabilities associated with the sale of EIG (see Note 2). An expense of  $109 million was recognized in connection with this settlement, which reduced the gain on sale.
Schedule of Projected Benefit Obligations Accumulated Benefit Obligation and Fair Value of Plan Assets	(In millions)    2010      2009   Projected benefit obligation     $ 35,640        $ 32,689    Accumulated benefit obligation      31,291         28,920    Fair value of plan assets      25,033         21,866
Schedule of Adjustments to Other Comprehensive Loss, Net Tax	Incurred but  Not Recognized      Reclassification Adjustment for Prior Period Amounts Recognized       (In millions)    2010      2009      2010      2009        Gains (losses)      (Gains) losses   Actuarial gains and losses     $ (921 )      $ 265        $ 501        $ 244         Credit (cost)      (Credit) cost   Prior service credit and cost      (62 )       (51 )       52         37          $ (983 )      $ 214        $ 553        $ 281
Net Pension Cost and the Net Postretirement Benefit Cost	(In millions)    2010      2009      2008   Qualified defined benefit pension plans          Service cost     $ 903        $ 870        $ 823    Interest cost      1,876         1,812         1,741    Expected return on plan assets      (2,027 )       (2,028 )       (2,184 )  Recognized net actuarial losses      595         302         2    Amortization of prior service cost      83         80         80    Curtailment      12         —           —      Total net pension expense     $ 1,442        $ 1,036        $ 462    Retiree medical and life insurance plans          Service cost     $ 36        $ 34        $ 43    Interest cost      166         165         180    Expected return on plan assets      (129 )       (106 )       (153 )  Recognized net actuarial losses      25         42         1    Amortization of prior service credit      (16 )       (23 )       (25 )  Total net postretirement expense     $ 82        $ 112        $ 46
Actuarial Assumptions Used to Determine Benefit Obligation	Benefit  Obligation Assumptions         2010     2009   Discount rate      5.500 %      5.875 %  Rate of increase in future compensation levels      4.400        4.500
Actuarial Assumptions Used to Determine the Net Expense Related to Postretirement Benefit Plans	Postretirement Benefit  Plan Cost Assumptions         2010     2009     2008   Discount rate      5.875 %      6.125 %      6.375 %  Expected long-term rate of return on assets      8.500        8.500        8.500    Rate of increase in future compensation levels      4.500        4.600        4.700
Schedule of Benefit Payments and Receipts	Retiree Medical and Life  Insurance Plans       (In millions)    Qualified Pension Benefits      Payments      Subsidy Receipts (a)   2011     $ 1,670        $ 250        $ 30    2012      1,740         260         30    2013      1,810         270         30    2014      1,900         270         40    2015      1,990         280         40    Years 2016 – 2020      11,580         1,330         150      (a) Amounts represent subsidy payments expected to be received under the Medicare Prescription Drug, Improvement, and Modernization Act of 2003. Under that law, the U.S. Government makes subsidy payments to eligible employers to offset the cost of prescription drug benefits provided to plan participants. During 2010 and 2009, we received  $18 million and  $36 million in subsidy payments.
Schedule of Asset Allocations of Postretirement Benefit Plans	Asset Class    Asset Allocation Ranges   Cash and cash equivalents      0 – 20 %  Equity      15 – 60 %  Fixed income      10 – 40 %  Alternative investments:    Private equity funds      0 – 10 %  Real estate funds      0 – 10 %  Hedge funds      0 – 10 %  Commodities      0 – 25 %
Schedule of Qualified Defined Benefit Pension Plans and Retiree Medical and Life Insurance Plans by Asset Category	(In millions)    Level 1      Level 2      Level 3      Balance as of December 31, 2010   Cash and cash equivalents     $ 1,726        $ —          $ —          $ 1,726    Equity (a):             U.S. equity securities      4,548         44         —           4,592    International equity securities      5,008         6         16         5,030    Commingled equity funds      1,287         1,056         —           2,343    Fixed income (a):             Corporate debt securities      —           1,351         63         1,414    U.S. Government securities      —           7,262         —           7,262    Other fixed income securities      —           584         47         631    Alternative investments:             Private equity funds      —           —           2,085         2,085    Real estate funds      —           —           164         164    Hedge funds      —           —           1,025         1,025    Commodities (a)      343         516         —           859    Total     $ 12,912        $ 10,819        $ 3,400        $ 27,131    Receivables, net                                 47    Total                                $ 27,178          (In millions)    Level 1      Level 2      Level 3      Balance as of December 31, 2009   Cash and cash equivalents     $ 2,187        $ —          $ —          $ 2,187    Equity (a):             U.S. equity securities (b)      4,136         22         —           4,158    International equity securities      3,466         76         16         3,558    Commingled equity funds      1,310         1,450         —           2,760    Fixed income (a):             Corporate debt securities      —           1,301         5         1,306    U.S. Government securities      —           5,173         —           5,173    Other fixed income securities      —           1,299         37         1,336    Alternative investments:             Private equity funds      —           —           1,730         1,730    Real estate funds      —           —           125         125    Hedge funds      —           —           750         750    Commodities (a)      161         481         —           642    Total     $ 11,260        $ 9,802        $ 2,663        $ 23,725    Receivables, net                                 59    Total                                $ 23,784      (a) Equity securities, fixed income securities, and commodities included derivative assets and liabilities whose fair values were not material as of December 31, 2010 and 2009. LMIMCo's investment policies restrict the use of derivatives to either establish long exposures for purposes of expediency or capital efficiency, or to hedge risks to the extent of a plan's current exposure to such risks. Most derivative transactions are settled on a daily basis. (b) U.S. equity securities included shares of our issued and outstanding common stock purchased by investment managers in the amounts of  $7 million (less than .03% of plan assets) as of December 31, 2009.
Schedule of Changes in the Fair Value of Level 3 Plan Assets	(In millions)    International Equity     Commin- gled Equity Funds     Corporate Debt     Other Fixed Income     Private Equity Funds      Real Estate Funds     Hedge Funds     Total   Balance at January 1, 2009     $ 7       $ 228       $ 113       $ 114       $ 1,417        $ 163       $ 973       $ 3,015    Actual return on plan assets:                   Realized gains (losses), net      (1 )      —          (21 )      1        66         —          (1 )      44    Unrealized gains (losses), net      1        92        44        12        133         (103 )      57        236    Purchases, sales, and settlements, net      12        —          (71 )      (84 )      114         65        (279 )      (243 )  Transfers out of Level 3      (3 )      (320 )      (60 )      (6 )      —           —          —          (389 )  Balance at December 31, 2009     $ 16       $ —         $ 5       $ 37       $ 1,730        $ 125       $ 750       $ 2,663    Actual return on plan assets:                   Realized gains (losses), net      —          —          —          2        123         —          1        126    Unrealized gains (losses), net      (3 )      —          2        1        103         7        13        123    Purchases, sales, and settlements, net      (4 )      —          61        8        129         32        261        487    Transfers in (out of) Level 3      7        —          (5 )      (1 )      —           —          —          1    Balance at December 31, 2010     $ 16       $ —         $ 63       $ 47       $ 2,085        $ 164       $ 1,025       $ 3,400

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Stock-Based Compensation (Tables)	12 Months Ended
Dec. 31, 2010
Stock-Based Compensation
Schedule of Stock-Based Compensation Stock Option	Number of Stock Options (In thousands)     Weighted Average Exercise Price      Weighted Average Remaining Contractual Life (In years)      Aggregate Intrinsic Value (In millions)   Outstanding at December 31, 2009      22,550       $ 74.04          Granted      3,588        74.93          Exercised      (1,405 )      41.65          Terminated      (236 )      87.29          Outstanding at December 31, 2010      24,497        75.90         5.9        $ 137.0    Vested and unvested-expected-to-vest at December 31, 2010      24,391        75.89         5.9         137.0    Vested at December 31, 2010      16,943        72.88         4.8         137.0
Schedule of Information Related to Stock Options	(In millions, except for grant-date fair value of stock options)    2010      2009      2008   Weighted average grant-date fair value of stock options granted     $ 14.05        $ 14.91        $ 19.31    Aggregate fair value of all the stock options that vested      71         72         78    Aggregate intrinsic value of all of the stock options exercised      50         37         263
Schedule of Stock-Based Compensation Black Scholes Option Pricing	2010     2009     2008   Risk-free interest rate      2.49 %      1.69 %      2.83 %  Dividend yield      3.40 %      2.30 %      1.70 %  Volatility factors      0.272        0.244        0.195    Expected option life      5 years        5 years        5 years
Schedule of Stock-Based Compensation Activity Related to Nonvested RSUs	Number of RSUs (In thousands)     Weighted Average Grant-Date Fair Value Per Share   Nonvested at December 31, 2009      2,969       $ 91.06    Granted      1,943        74.68    Vested      (971 )      92.85    Terminated      (185 )      82.84    Nonvested at December 31, 2010      3,756        82.53

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Fair Value Measurements (Tables)	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009
Fair Value Measurements
Fair Value, Assets and Liabilities Measured on Recurring Basis	In millions)    Level 1      Level 2      Balance as of December 31, 2010   Assets          Equity securities     $ 86        $ —          $ 86    Mutual funds      450         —           450    U.S. Government securities      —           719         719    Corporate debt securities      —           34         34    U.S. Government-sponsored enterprise securities      —           31         31    Mortgage-backed securities      —           24         24    Other securities      —           15         15    Derivative assets      —           26         26    Liabilities          Derivative liabilities      —           33         33	(In millions)    Level 1      Level 2      Balance as of December 31, 2009   Assets          Equity securities     $ 89        $ —          $ 89    Mutual funds      428         —           428    U.S. Government securities      —           412         412    Corporate debt securities      —           80         80    U.S. Government-sponsored enterprise securities      —           60         60    Mortgage-backed securities      —           26         26    Other securities      —           8         8    Derivative assets      —           21         21    Liabilities          Derivative liabilities      —           23         23

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Summary of Quarterly Information (Tables)	12 Months Ended
Dec. 31, 2010
Summary of Quarterly Information
Quarterly Financial Information	2010 Quarters (f)       (In millions, except per share data)    First ( a )  (h)      Second ( b )  (h)      Third ( c )      Fourth (d)   Net sales     $ 10,339        $ 11,295        $ 11,375        $ 12,794    Operating profit      959         1,121         889         1,128    Earnings from continuing operations      533         718         565         829    Earnings from discontinued operations      14         107         6         154    Net earnings      547         825         571         983    Basic earnings per share (g)      1.46         2.25         1.59         2.76    Diluted earnings per share (g)      1.45         2.22         1.57         2.73         2009 Quarters (f)       (In millions, except per share data)    First (h)      Second (h)      Third (e)      Fourth   Net sales     $ 10,085        $ 10,940        $ 10,767        $ 12,203    Operating profit      1,040         1,063         1,068         1,244    Earnings from continuing operations      657         720         786         836    Earnings from discontinued operations      9         14         11         (9 )  Net earnings      666         734         797         827    Basic earnings per share (g)      1.69         1.90         2.09         2.19    Diluted earnings per share (g)      1.68         1.88         2.07         2.17        (a) Earnings from continuing operations for the first quarter of 2010 included an increase in income tax expense resulting from legislation that eliminates the tax deduction for benefit costs reimbursed under Medicare Part D (see Note 9), which reduced net earnings by  $96 million ( $.25 per share).   (b) Earnings from discontinued operations for the second quarter of 2010 included a tax benefit of  $96 million due to the recognition of a deferred tax asset for PAE book and tax differences recorded when the decision was made to dispose of PAE (see Note 2).   (c) Earnings from continuing operations for the third quarter of 2010 included a charge of  $178 million to cost of sales related to the VESP (see Note 3), which reduced net earnings by  $116 million ( $.32 per share).   (d) Earnings from continuing operations for the fourth quarter of 2010 included a charge to cost of sales primarily related to our decision to consolidate certain Electronic Systems' operations (see Note 3), which reduced net earnings by  $27 million ( $.08 per share). Earnings from continuing operations for the fourth quarter of 2010 also increased by  $43 million ( $.12 per share) due to the recognition of a tax benefit related to the retroactive extension of the research and development tax credit from January 1, 2010 through December 31, 2011 (see Note 9). Earnings from discontinued operations for the fourth quarter of 2010 included a gain of  $184 million ( $.51 per share) from the sale of EIG, and a decrease of  $24 million ( $.07 per share) associated with the planned sale of PAE.   (e) Earnings from continuing operations for the third quarter of 2009 included a reduction in income tax expense resulting from the closure of IRS examinations for tax years 2005-2007, which increased net earnings by  $58 million ( $.15 per share).   (f) It is our practice to close the books and records on the Sunday prior to the end of the calendar quarter to align our financial closing with our business processes. This practice only affects interim periods, as our fiscal year ends on December 31.   (g) The sum of the quarterly earnings per share amounts for 2010 and 2009 do not equal the earnings per share amount included on the Statements of Earnings, primarily due to the timing of share repurchases during 2010 and 2009.   (h) Net sales and operating profit varies from the amount previously reported on Form 10-Q as a result of PAE and EIG being classified as discontinued operations in the second and third quarters of 2010, respectively.

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Significant Accounting Policies (Narrative) (Details) (USD  $)	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Capitalized internal use software, estimated life minimum (years)	2
Capitalized internal use software, estimated life maximum (years)	6
Capitalized internal use software, net	$ 899,000,000	$ 887,000,000
Capitalized internal use software accumulated amortization	1,097,000,000	948,000,000
Capitalized internal use software amortization	149,000,000	152,000,000	135,000,000
Expected percentage of net sales that will be recognized using the percentage-of-completion method	95.00%
Effect of change in accounting principle on net sales and segment operating profit in subsequent year	less than one percent
Independent research and development costs charged to cost of sales	638,000,000	724,000,000	698,000,000
Fair value of trading securities	843,000,000	757,000,000
Net gains (losses) on marketable securities	56,000,000	110,000,000	(158,000,000)
Net unrealized gains (losses) on trading securities	24,000,000	115,000,000	(98,000,000)
Minimum percent ownership interest in investee that significant influence typically exists	20.00%
Maximum percent ownership interest in investee that significant influence typically exists	50.00%
Total equity method investment	671,000,000	524,000,000
Net earnings from equity investments	312,000,000	278,000,000	288,000,000
Notional amount of foreign currency derivative sale contracts	2,200,000,000	1,900,000,000
Notional amount of interest rate derivatives	0	0
U.S. Treasury Securities [Member]
Fair value of available-for-sale securities	502,000,000	300,000,000
Corporate Debt Securities [Member]
Fair value of available-for-sale securities	$ 14,000,000	$ 46,000,000
Machinery and Equipment [Member]
Property, plant and equipment, estimated life minimum (years)	5
Property, plant and equipment, estimated life maximum (years)	15
Building [Member]
Property, plant and equipment, estimated life minimum (years)	10
Property, plant and equipment, estimated life maximum (years)	40

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Significant Accounting Policies (Accumulated Other Comprehensive Loss) (Details) (USD  $) In Millions	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009
Significant Accounting Policies
Postretirement benefit plan adjustments	$ (8,994)	$ (8,564)
Foreign currency translation adjustments	(17)	(26)
Accumulated other comprehensive income (loss), other, net of tax	1	(5)
Accumulated other comprehensive loss	$ (9,010)	$ (8,595)

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Discontinued Operations (Narrative) (Details) (USD  $) In Millions, except Per Share data	3 Months Ended	12 Months Ended
Dec. 31, 2010	Jun. 30, 2010	Dec. 31, 2010
Impairment charge related to the planned sale of PAE	$ 109
Discontinued operation benefit from recognition of deferred tax asset		96
Gain (loss) on business divestitures			184
Tax payment related to sale of EIG			260
Proceeds related to business divestiture			798
Pacific Architects and Engineers, Inc. (PAE) [Member]
Impairment charge related to the planned sale of PAE	109
Discontinued operation benefit from recognition of deferred tax asset	182
Adjustments from planned sale per share	$ 0.2
Adjustments from planned sale of PAE	73
Enterprise Integration Group (EIG) [Member]
Selling price of EIG per definitive agreement	815		815
Gain (loss) on sale of business divestitures, per share	$ 0.5
Gain (loss) on business divestitures	184
Tax payment related to sale of EIG	260
Proceeds related to business divestiture	798
Business divestiture transaction costs	$ 17

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Discontinued Operations (Summary Financial Information Related to Discontinued Operations) (Details) (USD  $) In Millions	3 Months Ended	12 Months Ended
Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Sep. 30, 2009	Jun. 30, 2009	Mar. 31, 2009	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Discontinued Operations
Net sales																	$ 1,087	$ 1,195	$ 1,359
Earnings before income taxes																	44	54	76
Earnings after income taxes																	24	25	50
Gain on sale of EIG																	184
Adjustments from planned sale of PAE																	73
Earnings from discontinued operations	$ 154	[1],[2]	$ 6	[2],[3]	$ 107	[2],[4],[5]	$ 14	[2],[5],[6]	$ (9)	[2]	$ 11	[2],[7]	$ 14	[2],[5]	$ 9	[2],[5]	$ 281	$ 25	$ 50
[1]	Earnings from continuing operations for the fourth quarter of 2010 included a charge to cost of sales primarily related to our decision to consolidate certain Electronic Systems' operations (see Note 3), which reduced net earnings by  $27 million ( $.08 per share). Earnings from continuing operations for the fourth quarter of 2010 also increased by  $43 million ( $.12 per share) due to the recognition of a tax benefit related to the retroactive extension of the research and development tax credit from January 1, 2010 through December 31, 2011 (see Note 9). Earnings from discontinued operations for the fourth quarter of 2010 included a gain of  $184 million ( $.51 per share) from the sale of EIG, and a decrease of  $24 million ( $.07 per share) associated with the planned sale of PAE.
[2]	It is our practice to close the books and records on the Sunday prior to the end of the calendar quarter to align our financial closing with our business processes. This practice only affects interim periods, as our fiscal year ends on December 31.
[3]	Earnings from continuing operations for the third quarter of 2010 included a charge of  $178 million to cost of sales related to the VESP (see Note 3), which reduced net earnings by  $116 million ( $.32 per share).
[4]	Earnings from discontinued operations for the second quarter of 2010 included a tax benefit of  $96 million due to the recognition of a deferred tax asset for PAE book and tax differences recorded when the decision was made to dispose of PAE (see Note 2).
[5]	Net sales and operating profit varies from the amount previously reported on Form 10-Q as a result of PAE and EIG being classified as discontinued operations in the second and third quarters of 2010, respectively.
[6]	Earnings from continuing operations for the first quarter of 2010 included an increase in income tax expense resulting from legislation that eliminates the tax deduction for benefit costs reimbursed under Medicare Part D (see Note 9), which reduced net earnings by  $96 million ( $.25 per share).
[7]	Earnings from continuing operations for the third quarter of 2009 included a reduction in income tax expense resulting from the closure of IRS examinations for tax years 2005-2007, which increased net earnings by  $58 million ( $.15 per share).

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Discontinued Operations (Major Classes of Assets and Liabilities Related to Discontinued Operations and Classified as Held for Sale in the Balance Sheet) (Details) (USD  $) In Millions	Dec. 31, 2010
Assets
Receivables	$ 267
Goodwill and other assets	132
Assets of Discontinued Operation Held for Sale	399
Liabilities
Accounts payable and accrued expenses	122
Other liabilities	82
Liabilities of Discontinued Operation Held for Sale	$ 204

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Restructuring and Other Activities (Narrative) (Details) (USD  $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended
Dec. 31, 2010	Mar. 31, 2010	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Reduction in Net Earnings		$ 96	$ 96
Net proceeds from elimination of reserves related to land sales					85
Increase in net earnings from elimination of reserves related to land sales					56
Voluntary executive separation and other charges			220
Increase (decrease) in net earning per share	$ 0.12	$ 0.25	$ 0.26	$ 0.18
Increase in net earnings from elimination of reserves related to land sales per diluted share					$ 0.14
Voluntary Executive Separation Program [Member]
Reduction in Net Earnings			116
Number of executives voluntarily participating in the program			600
Percentage of total executive population voluntarily participating in the program			25.00%
Maximum number of days within which cash special payment has to be made			90
Voluntary executive separation and other charges			178
Increase (decrease) in net earning per share			$ 0.31
Mission Systems and Sensors [Member]
Cost of sales, net of state income tax benefits	42
Reduction in net earnings			27
Increase (decrease) in net earning per share			$ 0.07
Lockheed Khrunichev Energia International, Inc. and International Launch Services, Inc. [Member]
Other income recorded from recognition of deferred gain					108
Lockheed Khrunichev Energia International, Inc. [Member]
Increase in net earnings from recognition of deferred gain per diluted share					$ 0.17
Increase in net earnings from recognition of deferred gain					$ 70

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Earnings Per Share (Narrative) (Details) In Millions	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Earnings Per Share
Stock options to purchase shares of common stock that had exercise prices that were in excess of the average market price of our common stock on the balance sheet date	11	11.2	3.5

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Earnings Per Share (Earnings Per Share Computation) (Details) (USD  $) In Millions, except Per Share data	3 Months Ended	12 Months Ended
Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Sep. 30, 2009	Jun. 30, 2009	Mar. 31, 2009	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Net earnings:
Earnings from continuing operations	$ 829	[1],[2]	$ 565	[2],[3]	$ 718	[2],[4],[5]	$ 533	[2],[5],[6]	$ 836	[2]	$ 786	[2],[7]	$ 720	[2],[5]	$ 657	[2],[5]	$ 2,645	$ 2,999	$ 3,167
Earnings from discontinued operations	154	[1],[2]	6	[2],[3]	107	[2],[4],[5]	14	[2],[5],[6]	(9)	[2]	11	[2],[7]	14	[2],[5]	9	[2],[5]	281	25	50
Net earnings for basic and diluted computations	$ 983	[1],[2]	$ 571	[2],[3]	$ 825	[2],[4],[5]	$ 547	[2],[5],[6]	$ 827	[2]	$ 797	[2],[7]	$ 734	[2],[5]	$ 666	[2],[5]	$ 2,926	$ 3,024	$ 3,217
Weighted average common shares outstanding:
Average number of common shares outstanding for basic computations																	364.2	384.8	399.7
Dilutive stock options and restricted stock units																	4.1	4.1	9.7
Average number of common shares outstanding for diluted computations																	368.3	388.9	409.4
Basic
Continuing operations																	$ 7.26	$ 7.79	$ 7.92
Discontinued operations																	$ 0.77	$ 0.07	$ 0.13
Basic Earnings Per Common Share	$ 2.76	[1],[2],[8]	$ 1.59	[2],[3],[8]	$ 2.25	[2],[4],[5],[8]	$ 1.46	[2],[5],[6],[8]	$ 2.19	[2],[8]	$ 2.09	[2],[7],[8]	$ 1.9	[2],[5],[8]	$ 1.69	[2],[5],[8]	$ 8.03	$ 7.86	$ 8.05
Diluted
Continuing operations																	$ 7.18	$ 7.71	$ 7.74
Discontinued operations																	$ 0.76	$ 0.07	$ 0.12
Diluted Earnings Per Common Share	$ 2.73	[1],[2],[8]	$ 1.57	[2],[3],[8]	$ 2.22	[2],[4],[5],[8]	$ 1.45	[2],[5],[6],[8]	$ 2.17	[2],[8]	$ 2.07	[2],[7],[8]	$ 1.88	[2],[5],[8]	$ 1.68	[2],[5],[8]	$ 7.94	$ 7.78	$ 7.86
[1]	Earnings from continuing operations for the fourth quarter of 2010 included a charge to cost of sales primarily related to our decision to consolidate certain Electronic Systems' operations (see Note 3), which reduced net earnings by  $27 million ( $.08 per share). Earnings from continuing operations for the fourth quarter of 2010 also increased by  $43 million ( $.12 per share) due to the recognition of a tax benefit related to the retroactive extension of the research and development tax credit from January 1, 2010 through December 31, 2011 (see Note 9). Earnings from discontinued operations for the fourth quarter of 2010 included a gain of  $184 million ( $.51 per share) from the sale of EIG, and a decrease of  $24 million ( $.07 per share) associated with the planned sale of PAE.
[2]	It is our practice to close the books and records on the Sunday prior to the end of the calendar quarter to align our financial closing with our business processes. This practice only affects interim periods, as our fiscal year ends on December 31.
[3]	Earnings from continuing operations for the third quarter of 2010 included a charge of  $178 million to cost of sales related to the VESP (see Note 3), which reduced net earnings by  $116 million ( $.32 per share).
[4]	Earnings from discontinued operations for the second quarter of 2010 included a tax benefit of  $96 million due to the recognition of a deferred tax asset for PAE book and tax differences recorded when the decision was made to dispose of PAE (see Note 2).
[5]	Net sales and operating profit varies from the amount previously reported on Form 10-Q as a result of PAE and EIG being classified as discontinued operations in the second and third quarters of 2010, respectively.
[6]	Earnings from continuing operations for the first quarter of 2010 included an increase in income tax expense resulting from legislation that eliminates the tax deduction for benefit costs reimbursed under Medicare Part D (see Note 9), which reduced net earnings by  $96 million ( $.25 per share).
[7]	Earnings from continuing operations for the third quarter of 2009 included a reduction in income tax expense resulting from the closure of IRS examinations for tax years 2005-2007, which increased net earnings by  $58 million ( $.15 per share).
[8]	The sum of the quarterly earnings per share amounts for 2010 and 2009 do not equal the earnings per share amount included on the Statements of Earnings, primarily due to the timing of share repurchases during 2010 and 2009.

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Information on Business Segments (Narrative) (Details) (USD  $) In Billions	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
International sales	$ 7.1	$ 6.3	$ 5.7

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Information on Business Segments (Schedule of Segment Reporting Information, by Segment) (Details) (USD  $) In Millions	3 Months Ended	12 Months Ended
Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Sep. 30, 2009	Jun. 30, 2009	Mar. 31, 2009	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Net sales	$ 12,794	[1],[2]	$ 11,375	[2],[3]	$ 11,295	[2],[4],[5]	$ 10,339	[2],[5],[6]	$ 12,203	[2]	$ 10,767	[2],[7]	$ 10,940	[2],[5]	$ 10,085	[2],[5]	$ 45,803		$ 43,995		$ 41,372
Operating profit	1,128	[1],[2]	889	[2],[3]	1,121	[2],[4],[5]	959	[2],[5],[6]	1,244	[2]	1,068	[2],[7]	1,063	[2],[5]	1,040	[2],[5]	4,097	[8]	4,415	[8]	5,049	[8]
Intersegment revenue																	2,153		2,019		1,815
Depreciation and amortization of plant and equipment, total																	749		750		727
Expenditures for property, plant and equipment																	820		852		926
Assets	35,067	[9]							35,111	[9]							35,067	[9]	35,111	[9]
Goodwill	9,605								9,948								9,605		9,948
Customer advances and amounts in excess of costs incurred	5,719								5,049								5,719		5,049
Equity in net earnings (losses) of equity investees																	312		278		288
FAS/CAS pension adjustment																	(454)		(456)		128
Items not considered in segment operating performance																					193
Stock-based compensation																	(168)		(154)		(155)
Other																	(137)		(79)		(5)
Other unallocated Corporate income (expense), net																	(759)		(689)		161
U.S. Government [Member]
Net sales																	38,394		37,383		34,946
U.S. Government [Member] | Aeronautics [Member]
Net sales																	10,720		10,151		9,268
U.S. Government [Member] | Electronic Systems [Member]
Net sales																	10,242		9,699		9,405
U.S. Government [Member] | Information Systems & Global Solutions [Member]
Net sales																	9,437		9,128		8,588
U.S. Government [Member] | Space Systems [Member]
Net sales																	7,995		8,405		7,685
Foreign Governments [Member]
Net sales																	6,664	[10],[11]	5,705	[10],[11]	5,267	[10],[11]
Foreign Governments [Member] | Aeronautics [Member]
Net sales																	2,478	[10],[11]	1,990	[10],[11]	2,043	[10],[11]
Foreign Governments [Member] | Electronic Systems [Member]
Net sales																	3,749	[10],[11]	3,432	[10],[11]	3,049	[10],[11]
Foreign Governments [Member] | Information Systems & Global Solutions [Member]
Net sales																	417	[10],[11]	256	[10],[11]	160	[10],[11]
Foreign Governments [Member] | Space Systems [Member]
Net sales																	20	[10],[11]	27	[10],[11]	15	[10],[11]
Commercial and Other [Member]
Net sales																	745	[10]	907	[10]	1,159	[10]
Commercial and Other [Member] | Aeronautics [Member]
Net sales																	37	[10]	60	[10]	162	[10]
Commercial and Other [Member] | Electronic Systems [Member]
Net sales																	372	[10]	401	[10]	349	[10]
Commercial and Other [Member] | Information Systems & Global Solutions [Member]
Net sales																	105	[10]	224	[10]	321	[10]
Commercial and Other [Member] | Space Systems [Member]
Net sales																	231	[10]	222	[10]	327	[10]
Aeronautics [Member]
Net sales																	13,235		12,201		11,473
Operating profit																	1,502	[8]	1,577	[8]	1,433	[8]
Intersegment revenue																	128		210		147
Depreciation and amortization of plant and equipment																	205		198		190
Expenditures for property, plant and equipment																	271		248		227
Assets	5,230	[9]							4,356	[9]							5,230	[9]	4,356	[9]
Goodwill	148								148								148		148
Customer advances and amounts in excess of costs incurred	2,773								2,389								2,773		2,389
Equity in net earnings (losses) of equity investees																	7		9		21
Electronic Systems [Member]
Net sales																	14,363		13,532		12,803
Operating profit																	1,712	[8]	1,660	[8]	1,583	[8]
Intersegment revenue																	989		860		662
Depreciation and amortization of plant and equipment																	237		245		257
Expenditures for property, plant and equipment																	260		266		275
Assets	9,972	[9]							10,080	[9]							9,972	[9]	10,080	[9]
Goodwill	5,601								5,595								5,601		5,595
Customer advances and amounts in excess of costs incurred	2,408								2,297								2,408		2,297
Equity in net earnings (losses) of equity investees																	50		53		43
Information Systems & Global Solutions [Member]
Net sales																	9,959		9,608		9,069
Operating profit																	890	[8]	895	[8]	919	[8]
Intersegment revenue																	912		827		803
Depreciation and amortization of plant and equipment																	63		66		61
Expenditures for property, plant and equipment																	53		52		72
Assets	5,524	[9]							6,443	[9]							5,524	[9]	6,443	[9]
Goodwill	3,363								3,712								3,363		3,712
Customer advances and amounts in excess of costs incurred	195								172								195		172
Space Systems [Member]
Net sales																	8,246		8,654		8,027
Operating profit																	972	[8]	972	[8]	953	[8]
Intersegment revenue																	124		122		203
Depreciation and amortization of plant and equipment																	186		182		166
Expenditures for property, plant and equipment																	181		210		231
Assets	3,014	[9]							3,097	[9]							3,014	[9]	3,097	[9]
Goodwill	493								493								493		493
Customer advances and amounts in excess of costs incurred	343								191								343		191
Equity in net earnings (losses) of equity investees																	259		218		224
Business Segment [Member]
Operating profit																	5,076	[8]	5,104	[8]	4,888	[8]
Depreciation and amortization of plant and equipment																	691		691		674
Expenditures for property, plant and equipment																	765		776		805
Assets	23,740	[9]							23,976	[9]							23,740	[9]	23,976	[9]
Equity in net earnings (losses) of equity investees																	316		280		288
Voluntary Executive Separation Program And Other Charges [Member]
Operating profit																	(220)	[12],[8]
Other Unallocated Corporate Income Expense Net [Member]
Operating profit																	(759)	[13]	(689)	[13]	161	[13]
Corporate [Member]
Depreciation and amortization of plant and equipment																	58		59		53
Expenditures for property, plant and equipment																	55		76		121
Assets	10,928	[14],[9]							11,135	[14],[9]							10,928	[14],[9]	11,135	[14],[9]
Equity in net earnings (losses) of equity investees																	(4)		(2)
Discontinued Operation or Asset Disposal [Member]
Assets	$ 399	[9]															$ 399	[9]
[1]	Earnings from continuing operations for the fourth quarter of 2010 included a charge to cost of sales primarily related to our decision to consolidate certain Electronic Systems' operations (see Note 3), which reduced net earnings by  $27 million ( $.08 per share). Earnings from continuing operations for the fourth quarter of 2010 also increased by  $43 million ( $.12 per share) due to the recognition of a tax benefit related to the retroactive extension of the research and development tax credit from January 1, 2010 through December 31, 2011 (see Note 9). Earnings from discontinued operations for the fourth quarter of 2010 included a gain of  $184 million ( $.51 per share) from the sale of EIG, and a decrease of  $24 million ( $.07 per share) associated with the planned sale of PAE.
[2]	It is our practice to close the books and records on the Sunday prior to the end of the calendar quarter to align our financial closing with our business processes. This practice only affects interim periods, as our fiscal year ends on December 31.
[3]	Earnings from continuing operations for the third quarter of 2010 included a charge of  $178 million to cost of sales related to the VESP (see Note 3), which reduced net earnings by  $116 million ( $.32 per share).
[4]	Earnings from discontinued operations for the second quarter of 2010 included a tax benefit of  $96 million due to the recognition of a deferred tax asset for PAE book and tax differences recorded when the decision was made to dispose of PAE (see Note 2).
[5]	Net sales and operating profit varies from the amount previously reported on Form 10-Q as a result of PAE and EIG being classified as discontinued operations in the second and third quarters of 2010, respectively.
[6]	Earnings from continuing operations for the first quarter of 2010 included an increase in income tax expense resulting from legislation that eliminates the tax deduction for benefit costs reimbursed under Medicare Part D (see Note 9), which reduced net earnings by  $96 million ( $.25 per share).
[7]	Earnings from continuing operations for the third quarter of 2009 included a reduction in income tax expense resulting from the closure of IRS examinations for tax years 2005-2007, which increased net earnings by  $58 million ( $.15 per share).
[8]	(a) Operating profit included equity in net earnings (losses) of equity investees as follows: (In millions) 2010 2009 2008 Aeronautics  $ 7  $ 9  $ 21 Electronic Systems 50 53 43 Space Systems 259 218 224 Total business segments 316 280 288 Corporate activities (4 ) (2 ) — Total  $ 312  $ 278  $ 288
[9]	We have no significant long-lived assets located in foreign countries.
[10]	International sales, including export sales reflected in the "Foreign governments" and "Commercial and Other" categories, were  $7.1 billion in 2010,  $6.3 billion in 2009, and  $5.7 billion in 2008.
[11]	Sales made to foreign governments through the U.S. Government, or "foreign military sales," are included in the "Foreign governments" category.
[12]	Voluntary executive separation and other charges included the charges associated with the VESP and MS2's consolidation of facilities (see Note 3).
[13]	c) Other unallocated Corporate income (expense), net included the following: (In millions) 2010 2009 2008 FAS/CAS pension adjustment  $ (454 )  $ (456 )  $ 128 Items not considered in segment operating performance — — 193 Stock-based compensation (168 ) (154 ) (155 ) Other (137 ) (79 ) (5 ) Total  $ (759 )  $ (689 )  $ 161 See Note 3 for information regarding the items not considered in segment operating performance.
[14]	Corporate assets primarily include cash and cash equivalents, short-term investments, deferred income taxes, the prepaid pension asset, deferred environmental assets, and investments held in a Rabbi Trust.

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Information on Business Segments (Net Sales by Customer Category) (Details) (USD  $) In Millions	3 Months Ended	12 Months Ended
Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Sep. 30, 2009	Jun. 30, 2009	Mar. 31, 2009	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Sales Revenue Net	$ 12,794	[1],[2]	$ 11,375	[2],[3]	$ 11,295	[2],[4],[5]	$ 10,339	[2],[5],[6]	$ 12,203	[2]	$ 10,767	[2],[7]	$ 10,940	[2],[5]	$ 10,085	[2],[5]	$ 45,803		$ 43,995		$ 41,372
U.S. Government [Member]
Sales Revenue Net																	38,394		37,383		34,946
U.S. Government [Member] | Aeronautics [Member]
Sales Revenue Net																	10,720		10,151		9,268
U.S. Government [Member] | Electronic Systems [Member]
Sales Revenue Net																	10,242		9,699		9,405
U.S. Government [Member] | Information Systems & Global Solutions [Member]
Sales Revenue Net																	9,437		9,128		8,588
U.S. Government [Member] | Space Systems [Member]
Sales Revenue Net																	7,995		8,405		7,685
Foreign Governments [Member]
Sales Revenue Net																	6,664	[8],[9]	5,705	[8],[9]	5,267	[8],[9]
Foreign Governments [Member] | Aeronautics [Member]
Sales Revenue Net																	2,478	[8],[9]	1,990	[8],[9]	2,043	[8],[9]
Foreign Governments [Member] | Electronic Systems [Member]
Sales Revenue Net																	3,749	[8],[9]	3,432	[8],[9]	3,049	[8],[9]
Foreign Governments [Member] | Information Systems & Global Solutions [Member]
Sales Revenue Net																	417	[8],[9]	256	[8],[9]	160	[8],[9]
Foreign Governments [Member] | Space Systems [Member]
Sales Revenue Net																	20	[8],[9]	27	[8],[9]	15	[8],[9]
Commercial and Other [Member]
Sales Revenue Net																	745	[8]	907	[8]	1,159	[8]
Commercial and Other [Member] | Aeronautics [Member]
Sales Revenue Net																	37	[8]	60	[8]	162	[8]
Commercial and Other [Member] | Electronic Systems [Member]
Sales Revenue Net																	372	[8]	401	[8]	349	[8]
Commercial and Other [Member] | Information Systems & Global Solutions [Member]
Sales Revenue Net																	105	[8]	224	[8]	321	[8]
Commercial and Other [Member] | Space Systems [Member]
Sales Revenue Net																	231	[8]	222	[8]	327	[8]
Aeronautics [Member]
Sales Revenue Net																	13,235		12,201		11,473
Electronic Systems [Member]
Sales Revenue Net																	14,363		13,532		12,803
Information Systems & Global Solutions [Member]
Sales Revenue Net																	9,959		9,608		9,069
Space Systems [Member]
Sales Revenue Net																	$ 8,246		$ 8,654		$ 8,027
[1]	Earnings from continuing operations for the fourth quarter of 2010 included a charge to cost of sales primarily related to our decision to consolidate certain Electronic Systems' operations (see Note 3), which reduced net earnings by  $27 million ( $.08 per share). Earnings from continuing operations for the fourth quarter of 2010 also increased by  $43 million ( $.12 per share) due to the recognition of a tax benefit related to the retroactive extension of the research and development tax credit from January 1, 2010 through December 31, 2011 (see Note 9). Earnings from discontinued operations for the fourth quarter of 2010 included a gain of  $184 million ( $.51 per share) from the sale of EIG, and a decrease of  $24 million ( $.07 per share) associated with the planned sale of PAE.
[2]	It is our practice to close the books and records on the Sunday prior to the end of the calendar quarter to align our financial closing with our business processes. This practice only affects interim periods, as our fiscal year ends on December 31.
[3]	Earnings from continuing operations for the third quarter of 2010 included a charge of  $178 million to cost of sales related to the VESP (see Note 3), which reduced net earnings by  $116 million ( $.32 per share).
[4]	Earnings from discontinued operations for the second quarter of 2010 included a tax benefit of  $96 million due to the recognition of a deferred tax asset for PAE book and tax differences recorded when the decision was made to dispose of PAE (see Note 2).
[5]	Net sales and operating profit varies from the amount previously reported on Form 10-Q as a result of PAE and EIG being classified as discontinued operations in the second and third quarters of 2010, respectively.
[6]	Earnings from continuing operations for the first quarter of 2010 included an increase in income tax expense resulting from legislation that eliminates the tax deduction for benefit costs reimbursed under Medicare Part D (see Note 9), which reduced net earnings by  $96 million ( $.25 per share).
[7]	Earnings from continuing operations for the third quarter of 2009 included a reduction in income tax expense resulting from the closure of IRS examinations for tax years 2005-2007, which increased net earnings by  $58 million ( $.15 per share).
[8]	International sales, including export sales reflected in the "Foreign governments" and "Commercial and Other" categories, were  $7.1 billion in 2010,  $6.3 billion in 2009, and  $5.7 billion in 2008.
[9]	Sales made to foreign governments through the U.S. Government, or "foreign military sales," are included in the "Foreign governments" category.

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Receivables (Schedule of Receivables by Component) (Details) (USD  $) In Millions	Dec. 31, 2010	Dec. 31, 2009
Less: customer advances	$ (5,719)	$ (5,049)
Receivables, Net	5,757	6,061
U.S. Government [Member]
Amounts billed	1,360	1,648
Unbilled costs and accrued profits	3,127	2,718
Less: customer advances and progress payments	(591)	(486)
Receivables, Net	3,896	3,880
Foreign Governments [Member]
Amounts billed	461	598
Unbilled costs and accrued profits	1,649	1,811
Less: customer advances	(249)	(228)
Receivables, Net	$ 1,861	$ 2,181

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Inventories (Narrative) (Details) (USD  $) In Millions	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Inventories
General and administrative costs included in work-in-process inventories	$ 522	$ 550
General and administrative costs incurred and recorded in inventories	2,325	2,352	2,324
General and administrative costs charged to cost of sales from inventories	$ 2,352	$ 2,108	$ 2,213

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Inventories (Schedule of Inventories) (Details) (USD  $) In Millions	Dec. 31, 2010	Dec. 31, 2009
Inventories
Work-in-process, primarily related to long-term contracts and programs in progress	$ 6,523	$ 5,565
Less: customer advances and progress payments	(4,788)	(3,941)
Inventory for long-term contracts and programs, total	1,735	1,624
Other inventories	643	559
Inventories	$ 2,378	$ 2,183

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Property, Plant, and Equipment (Property, Plant, and Equipment) (Details) (USD  $) In Millions	Dec. 31, 2010	Dec. 31, 2009
Property, Plant, and Equipment
Land	$ 111	$ 112
Buildings	5,264	5,010
Machinery and equipment	6,583	6,283
Property, plant and equipment, gross, total	11,958	11,405
Less: accumulated depreciation and amortization	(7,404)	(6,885)
Property, plant, and equipment, net	$ 4,554	$ 4,520

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Income Taxes (Narrative) (Details) (USD  $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended
Dec. 31, 2010	Mar. 31, 2010	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Income Taxes
Total net state income tax expense			$ 168	$ 144	$ 221
U.S. federal statutory income tax rate			35.00%
Reduction in income tax expense due to IRS examinations				69
Reduction to effective income tax rate				1.60%
Decrease in diluted earnings per share	$ 0.12	$ 0.25	$ 0.26	$ 0.18
Medicare Part D law change		96	96
Reduction of tax expense due to tax benefit	43
Deduction rate related to US manufacturing activity			9.00%	6.00%	6.00%
Liabilities for unrecognized tax benefits related to permanent and temporary tax adjustments, exclusive of interest	160		160	217	250
Undistributed foreign companies earnings not taxed to U.S. income taxes and foreign withholding taxes			108	123	139
Income tax expense on undistributed earnings of foreign companies if remitted			17	29	16
Federal and foreign income tax payments, net of refunds received			806	986	1,234
Tax payment related to sale of EIG			260
Refund received from the IRS related to estimated taxes paid for the prior year			325
Advance payment related to matters pending with IRS Appeals			$ 85

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Income Taxes (Provision for Federal and Foreign Income Tax Expense) (Details) (USD  $) In Millions	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Federal income taxes:
Current	$ 589	$ 667	$ 1,378
Deferred	589	583	55
Total federal income taxes	1,178	1,250	1,433
Foreign income taxes:
Current	8	(4)	26
Deferred	(5)	(15)
Total foreign income taxes	3	(19)	26
Income tax expense	$ 1,181	$ 1,231	$ 1,459

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Income Taxes (Reconciliation of Income Tax Expense Computed Using the US Statutory Federal Tax Rate) (Details) (USD  $) In Millions	3 Months Ended	12 Months Ended
Mar. 31, 2010	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Income Taxes
Income tax expense at the U.S. federal statutory tax rate		$ 1,339	$ 1,481	$ 1,619
Increase (decrease) in tax expense:
U.S. manufacturing activity benefit		(110)	(39)	(67)
Medicare Part D law change	96	96
Tax deductible dividends		(56)	(49)	(38)
Research and development tax credit		(43)	(43)	(36)
Other, net		(45)	(119)	(19)
Income tax expense		$ 1,181	$ 1,231	$ 1,459

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Income Taxes (Components of Federal and Foreign Deferred Income Tax Assets and Liabilities) (Details) (USD  $) In Millions	Dec. 31, 2010	Dec. 31, 2009
Deferred tax assets related to:
Accrued compensation and benefits	$ 877		$ 796
Pensions	3,642		3,664
Other postretirement benefit obligations	459		565
Contract accounting methods	419		391
Planned sale of PAE	179
Foreign company operating losses and credits	14		15
Valuation allowance			(13)
Deferred tax assets, net	5,590		5,418
Deferred tax liabilities related to:
Goodwill and purchased intangibles	336		371
Property, plant and equipment	558		343
Exchanged debt securities and other	189	[1]	111	[1]
Deferred tax liabilities	1,083		825
Net deferred tax assets	$ 4,507	[2]	$ 4,593	[2]
[1]	Includes deferred tax liabilities associated with the exchange of debt securities in 2010 (see Note 10) and 2006.
[2]	Includes net foreign current deferred tax liabilities, which are included on the Balance Sheets in other current liabilities.

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Income Taxes (Liabilities for Unrecognized Tax Benefits) (Details) (USD  $) In Millions	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009
Income Taxes
Balance at January 1	$ 217	$ 250
Tax positions related to the current year	73	39
Increase (decrease) related to tax positions in prior years:
Recognition of benefits from resolution of issues with IRS		(54)
Unrecognized tax benefits decreases resulting from reclassification to liabilities of discontinued operation held for sale	(29)
Other, net	(16)
Settlements with taxing authorities for prior years		(18)
Unrecognized tax benefits decreases resulting from advance payment for pending matters	(85)
Balance at December 31	$ 160	$ 217

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Debt (Narrative) (Details) (USD  $)	1 Months Ended	12 Months Ended		1 Months Ended		1 Months Ended			1 Months Ended			1 Months Ended
May 31, 2010	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008	Nov. 30, 2009	May 31, 2010 5.72% Notes due 6/1/2040 [Member]	Dec. 31, 2010 5.72% Notes due 6/1/2040 [Member]	Nov. 30, 2009 4.25% Notes due 11/15/2019 [Member]	Dec. 31, 2010 4.25% Notes due 11/15/2019 [Member]	Dec. 31, 2009 4.25% Notes due 11/15/2019 [Member]	Nov. 30, 2009 5.50% Notes due 11/15/2039 [Member]	Dec. 31, 2010 5.50% Notes due 11/15/2039 [Member]	Dec. 31, 2009 5.50% Notes due 11/15/2039 [Member]	Mar. 31, 2008 4.12% Notes due 3/14/2013 [Member]	Dec. 31, 2010 4.12% Notes due 3/14/2013 [Member]	Dec. 31, 2009 4.12% Notes due 3/14/2013 [Member]
Long-term debt		$ 5,019,000,000	$ 5,052,000,000			$ 728,000,000	$ 728,000,000	$ 900,000,000	$ 900,000,000	$ 900,000,000	$ 600,000,000	$ 600,000,000	$ 600,000,000	$ 500,000,000	$ 500,000,000	$ 500,000,000
Interest rate						5.72%	5.72%	4.25%	4.25%		5.50%	5.50%		4.12%	4.12%
Debt instrument maturity year						2040
Debt instrument maturity year								2019			2039			2013
Principal amount exchanged	611,000,000
Premium for debt exchange	158,000,000
New notes issued in exchange of old notes	117,000,000
Issuance of long-term notes		5,524,000,000	5,403,000,000		1,500,000,000
Cash premium for debt exchange	41,000,000
Cash paid for expenses associated with debt exchange	6,000,000
Repayments of Long-term Debt	611,000,000		242,000,000	1,103,000,000
Revolving credit facility		1,500,000,000	1,500,000,000
Line of credit facility expiration date		June 2012
Revolving credit facility outstanding borrowings		0	0
Long-term debt maturities in year 2013		650,000,000
Interest payments		$ 337,000,000	$ 286,000,000	$ 320,000,000

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Debt (Long-Term Debt) (Details) (USD  $) In Millions, unless otherwise specified	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2010 4.12% Notes due 3/14/2013 [Member]	Dec. 31, 2009 4.12% Notes due 3/14/2013 [Member]	Mar. 31, 2008 4.12% Notes due 3/14/2013 [Member]	Dec. 31, 2010 7.38% Debentures due 4/15/2013 [Member]	Dec. 31, 2009 7.38% Debentures due 4/15/2013 [Member]	Dec. 31, 2010 7.65% Debentures due 5/1/2016 [Member]	Dec. 31, 2009 7.65% Debentures due 5/1/2016 [Member]	Dec. 31, 2010 4.25% Notes due 11/15/2019 [Member]	Dec. 31, 2009 4.25% Notes due 11/15/2019 [Member]	Nov. 30, 2009 4.25% Notes due 11/15/2019 [Member]	Dec. 31, 2010 7.00% Debentures due 9/15/2023 [Member]	Dec. 31, 2009 7.00% Debentures due 9/15/2023 [Member]	Dec. 31, 2010 8.38% Notes due 6/15/2024 [Member]	Dec. 31, 2009 8.38% Notes due 6/15/2024 [Member]	Dec. 31, 2010 7.63% Debentures due 6/15/2025 [Member]	Dec. 31, 2009 7.63% Debentures due 6/15/2025 [Member]	Dec. 31, 2010 7.75% Debentures due 5/1/2026 [Member]	Dec. 31, 2009 7.75% Debentures due 5/1/2026 [Member]	Dec. 31, 2010 8.50% Debentures due 12/1/2029 [Member]	Dec. 31, 2009 8.50% Debentures due 12/1/2029 [Member]	Dec. 31, 2010 7.20% Debentures due 5/1/2036 [Member]	Dec. 31, 2009 7.20% Debentures due 5/1/2036 [Member]	Dec. 31, 2010 6.15% Notes due 9/1/2036 [Member]	Dec. 31, 2009 6.15% Notes due 9/1/2036 [Member]	Dec. 31, 2010 5.50% Notes due 11/15/2039 [Member]	Dec. 31, 2009 5.50% Notes due 11/15/2039 [Member]	Nov. 30, 2009 5.50% Notes due 11/15/2039 [Member]	Dec. 31, 2010 5.72% Notes due 6/1/2040 [Member]	May 31, 2010 5.72% Notes due 6/1/2040 [Member]	Dec. 31, 2010 Unamortized Discount [Member]	Dec. 31, 2009 Unamortized Discount [Member]	Dec. 31, 2010 Other Various Interest Rate [Member]	Dec. 31, 2009 Other Various Interest Rate [Member]
Long-term debt	$ 5,019	$ 5,052	$ 500	$ 500	$ 500	$ 150	$ 150	$ 451	$ 600	$ 900	$ 900	$ 900	$ 200	$ 200	$ 167	$ 167	$ 150	$ 150	$ 275	$ 423	$ 206	$ 317	$ 97	$ 300	$ 1,079	$ 1,079	$ 600	$ 600	$ 600	$ 728	$ 728	$ (505)	$ (351)	$ 21	$ 17
Interest rate			4.12%		4.12%	7.38%		7.65%		4.25%		4.25%	7.00%		8.38%		7.63%		7.75%		8.50%		7.20%		6.15%		5.50%		5.50%	5.72%	5.72%
Debt instrument maturity date			Mar 14, 2013			Apr 15, 2013		May 1, 2016		Nov 15, 2019			Sep 15, 2023		Jun 15, 2024		Jun 15, 2025		May 1, 2026		Dec 1, 2029		May 1, 2036		Sep 1, 2036		Nov 15, 2039			Jun 1, 2040

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Debt (Old Notes Exchanged) (Details) (USD  $) In Millions	1 Months Ended	12 Months Ended
May 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Repayments of Long-term Debt	$ 611	$ 242	$ 1,103
7.65% Debentures due 2016 [Member]
Repayments of Long-term Debt	149
7.75% Debentures due 2026 [Member]
Repayments of Long-term Debt	148
8.50% Debentures due 2029 [Member]
Repayments of Long-term Debt	111
7.20% Debentures due 2036 [Member]
Repayments of Long-term Debt	$ 203

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Postretirement Benefit Plans (Narrative) (Details) (USD  $) Share data in Millions, unless otherwise specified	12 Months Ended		12 Months Ended		12 Months Ended
Dec. 31, 2021	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008	Dec. 31, 2010 Non-Qualified Pension Plans [Member]	Dec. 31, 2009 Non-Qualified Pension Plans [Member]	Dec. 31, 2008 Non-Qualified Pension Plans [Member]	Dec. 31, 2010 Salaried Employee Stock Ownership Plan (ESOP) Fund [Member]	Dec. 31, 2010 Qualified Defined Benefit Pension Plans [Member]	Dec. 31, 2010 Retiree Medical and Life Insurance Plans [Member]	Dec. 31, 2009 Retiree Medical and Life Insurance Plans [Member]	Dec. 31, 2010 Non-Qualified Pension Plans, Defined Benefit [Member]	Dec. 31, 2009 Non-Qualified Pension Plans, Defined Benefit [Member]	Dec. 31, 2009 Pre-Medicare Coverage [Member]	Dec. 31, 2020 Post-Medicare Coverage [Member]	Dec. 31, 2009 Post-Medicare Coverage [Member]	Dec. 31, 2010 Rabbi Trust [Member]	Dec. 31, 2009 Rabbi Trust [Member]
Contributions made for eligible employee under the provisions of 401(k) plans									$ 2,240,000,000
Contributions made to defined contribution plans		379,000,000	364,000,000	351,000,000
Shares of our stock held in defined contribution plan we sponsor		58.9						1.8
Accumulated benefit obligation for defined benefit pension plans		31,400,000,000	29,000,000,000
Defined benefit pension plan, liabilities												850,000,000	737,000,000
Assets set aside expected to be used to pay obligations of nonqualified plans		27,178,000,000	23,784,000,000														338,000,000	328,000,000
Unrecognized net actuarial losses										684,000,000	564,000,000	447,000,000	372,000,000
Benefit plan expense					85,000,000	76,000,000	71,000,000
Aggregate liability for postemployment plans		93,000,000	70,000,000
Defined benefit plan amortization of net gain (losses), net of tax									(568,000,000)	(22,000,000)		(25,000,000)
Unrecognized actuarial gain(loss) expected to be recognized in 2010 before tax									(880,000,000)	(34,000,000)		(38,000,000)
Defined benefit plan amortization of net prior service cost (credit), net of tax									(53,000,000)	(10,000,000)
Prior service credit(cost) expected to be recognized in 2010 before tax									(82,000,000)	(16,000,000)
Increase in projected benefit obligations due to a decrease in discount rate, approximate									1,700,000,000
Medical trend rate used to measure postretirement benefit obligation	5.00%														5.00%
Health care cost trend rate used for current fiscal year		10.00%												10.00%		9.50%
Medical trend rate ultimately decrease to 5.0% (year)		2021												2020		2019
Change in postretirement benefit obligation as a result of increase in one percentage point assumed medical trend rate		5.6
Change in postretirement benefit obligation as a result of decrease in one percentage point assumed medical trend rate		(4.2)
Change in postretirement service cost plus interest cost as a result of increase in one percentage point assumed medical trend rate		3.9
Change in postretirement service cost plus interest cost as a result of decrease in one percentage point assumed medical trend rate		(3.4)
Our contributions									2,240,000,000
Required contributions to qualified defined benefit plans in next year									1,300,000,000
Required qualified defined benefit plans contributions by employer in next fiscal year									$ 1,000,000,000

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Postretirement Benefit Plans (Reconciliation of Benefit Obligations, Plan Assets, and Unfunded Status Related to Qualified Defined Benefit Plans) (Details) (USD  $) In Millions	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Medicare part D subsidy	$ 18		$ 36
Fair value of plan assets at beginning of year	23,784
Fair value of plan assets at end of year	27,178		23,784
Accrued postretirement benefit liabilities	1,213		1,308
Accrued Pension Liabilities	10,607		10,823
Stock-based compensation, net impact	109		99		100
Enterprise Integration Group (EIG) [Member]
Effect of settlement associated with sale of EIG	109
Qualified Defined Benefit Pension Plans [Member]
Service cost	903		870		823
Interest cost	1,876		1,812		1,741
Our contributions	2,240
Defined Benefit Pension Plans [Member]
Benefit obligations at beginning of year	32,817		30,421
Service cost	903		870
Interest cost	1,876		1,812
Benefits paid	(1,592)		(1,510)
Actuarial losses	2,032		1,153
Amendments	94		70
Divestitures/curtailments	(357)	[1]	1	[1]
Benefit obligations at end of year	35,773		32,817
Prepaid Pension Asset	179		160
Accrued postretirement benefit liabilities	(10,607)		(10,823)
Net actuarial losses	12,263		11,809
Prior service cost (credit)	455		457
Defined Benefit Pension Plans [Member] | Change in Plan Assets [Member]
Benefits paid	(1,592)		(1,510)
Fair value of plan assets at beginning of year	22,154		18,539
Actual return on plan assets	2,886		3,644
Our contributions	2,240		1,482
Fair value of plan assets at end of year	25,345		22,154
Divestitures and other	(343)	[1]	(1)	[1]
Unfunded status of the plans	(10,428)		(10,663)
Retiree Medical and Life Insurance Plans [Member]
Benefit obligations at beginning of year	2,938		2,812
Service cost	36		34		43
Interest cost	166		165		180
Benefits paid	(352)		(366)
Actuarial losses	105		106
Amendments			9
Divestitures/curtailments	(10)	[1]
Medicare part D subsidy	18		36
Participants' contributions	145		142
Benefit obligations at end of year	3,046		2,938		2,812
Accrued postretirement benefit liabilities	(1,213)		(1,308)
Net actuarial losses	684		564
Prior service cost (credit)	(37)		(53)
Retiree Medical and Life Insurance Plans [Member] | Change in Plan Assets [Member]
Benefits paid	(352)		(366)
Medicare part D subsidy	18		36
Participants' contributions	145		142
Fair value of plan assets at beginning of year	1,630		1,426
Actual return on plan assets	86		330
Our contributions	311		60
Fair value of plan assets at end of year	1,833		1,630
Divestitures and other	(5)	[1]	2	[1]
Unfunded status of the plans	$ (1,213)		$ (1,308)
[1]	Primarily reflects the transfer of assets and liabilities associated with the sale of EIG (see Note 2). An expense of  $109 million was recognized in connection with this settlement, which reduced the gain on sale.

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Postretirement Benefit Plans (Projected Benefit Obligation, ABO, and Fair Value of the Plans' Assets) (Details) (USD  $) In Millions	Dec. 31, 2010	Dec. 31, 2009
Postretirement Benefit Plans
Projected benefit obligation	$ 35,640	$ 32,689
Accumulated benefit obligation	31,291	28,920
Fair value of plan assets	$ 25,033	$ 21,866

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Postretirement Benefit Plans (Schedule of Adjustments to Other Comprehensive Income (Loss), Net Tax) (Details) (USD  $) In Millions	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Unrecognized amounts in 2008, 2009 and 2010, net of tax benefit of  $4,011 million,  $121 million and  $531 million respectively	$ (983)	$ 214	$ (7,299)
Reclassification adjustment for recognition of prior period amounts in 2008, 2009 and 2010, net of tax of  $25 million,  $158 million and  $304 million respectively	553	281	46
Actuarial Gains and Losses [Member]
Incurred but not recognized, actuarial gains and losses	(921)	265
Reclassification adjustment for prior period amounts recognized, actuarial gains and losses	501	244
Prior Service Credit and Cost [Member]
Incurred but not recognized, prior service credit and cost	(62)	(51)
Reclassification adjustment for prior period amounts recognized, prior service credit and cost	$ 52	$ 37

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Postretirement Benefit Plans (Net Pension Cost and Net Postretirement Benefit Cost) (Details) (USD  $) In Millions	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Postretirement Benefit Costs [Member] | Qualified Defined Benefit Pension Plans [Member]
Recognized net actuarial losses	$ 595	$ 302	$ 2
Postretirement Benefit Costs [Member] | Retiree Medical and Life Insurance Plans [Member]
Recognized net actuarial losses	25	42	1
Qualified Defined Benefit Pension Plans [Member]
Service cost	903	870	823
Interest cost	1,876	1,812	1,741
Expected return on plan assets	(2,027)	(2,028)	(2,184)
Amortization of prior service cost	83	80	80
Curtailment	12
Total net postretirement expense	1,442	1,036	462
Retiree Medical and Life Insurance Plans [Member]
Service cost	36	34	43
Interest cost	166	165	180
Expected return on plan assets	(129)	(106)	(153)
Recognized net actuarial losses	105	106
Amortization of prior service cost	(16)	(23)	(25)
Total net postretirement expense	$ 82	$ 112	$ 46

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Postretirement Benefit Plans (Actuarial Assumptions for Discount Rates Used to Measure Benefit Obligations Related to Postretirement Benefit Plans) (Details) (Benefit Obligation [Member])	Dec. 31, 2010	Dec. 31, 2009
Discount rate	5.50%	5.88%
Rate of increase in future compensation levels	4.40%	4.50%

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Postretirement Benefit Plans (Actuarial Assumptions Used to Determine the Net Expense Related to Postretirement Benefit Plans) (Details) (Postretirement Benefit Costs [Member])	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Discount rate	5.88%	6.13%	6.38%
Expected long-term rate of return on assets	8.50%	8.50%	8.50%
Rate of increase in future compensation levels	4.50%	4.60%	4.70%

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Postretirement Benefit Plans (Schedule of Benefit Payments and Receipts) (Details) (USD  $) In Millions	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009
Payments in 2011	$ 250
Payments in 2012	260
Payments in 2013	270
Payments in 2014	270
Payments in 2015	280
Payments in years 2016 - 2020	1,330
Retiree Medical and Life Insurance Plans Subsidy Receipts in 2011	30	[1]
Retiree Medical and Life Insurance Plans Subsidy Receipts in 2012	30	[1]
Retiree Medical and Life Insurance Plans Subsidy Receipts in 2013	30	[1]
Retiree Medical and Life Insurance Plans Subsidy Receipts in 2014	40	[1]
Retiree Medical and Life Insurance Plans Subsidy Receipts in 2015	40	[1]
Retiree Medical and Life Insurance Plans Subsidy Receipts from 2016 - 2020	150	[1]
Subsidy payments received	18		36
Qualified Pension Benefits [Member]
Payments in 2011	1,670
Payments in 2012	1,740
Payments in 2013	1,810
Payments in 2014	1,900
Payments in 2015	1,990
Payments in years 2016 - 2020	$ 11,580
[1]	Amounts represent subsidy payments expected to be received under the Medicare Prescription Drug, Improvement, and Modernization Act of 2003. Under that law, the U.S. Government makes subsidy payments to eligible employers to offset the cost of prescription drug benefits provided to plan participants. During 2010 and 2009, we received  $18 million and  $36 million in subsidy payments.

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Postretirement Benefit Plans (Schedule of Asset Allocations of Postretirement Benefit Plans) (Details)	12 Months Ended
Dec. 31, 2010
Cash and Cash Equivalents [Member]
Asset allocation ranges, lower limit	0.00%
Asset allocation ranges, upper limit	20.00%
Equity [Member]
Asset allocation ranges, lower limit	15.00%
Asset allocation ranges, upper limit	60.00%
Fixed Income [Member]
Asset allocation ranges, lower limit	10.00%
Asset allocation ranges, upper limit	40.00%
Private Equity Funds [Member]
Asset allocation ranges, lower limit	0.00%
Asset allocation ranges, upper limit	10.00%
Real Estate Funds [Member]
Asset allocation ranges, lower limit	0.00%
Asset allocation ranges, upper limit	10.00%
Hedge Funds [Member]
Asset allocation ranges, lower limit	0.00%
Asset allocation ranges, upper limit	10.00%
Commodities [Member]
Asset allocation ranges, lower limit	0.00%
Asset allocation ranges, upper limit	25.00%

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Postretirement Benefit Plans (Schedule of Qualified Defined Benefit Pension Plans and Retiree Medical and Life Insurance Plans by Asset Category) (Details) (USD  $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009
Cash and cash equivalents	$ 1,726		$ 2,187
Receivables, net	47		59
Total, excluding receivables	27,131		23,725
Fair value of plan assets at end of year	27,178		23,784
Value of our common stock included in equity securities of plan assets			7
Percentage of value of our common stock included in equity securities to total plan assets			0.03%
Commodities [Member] | Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets at end of year			161	[1]
Commodities [Member] | Fair Value, Inputs, Level 1 [Member] | Alternative Investments [Member]
Fair value of plan assets at end of year	343	[1]
Fair Value, Inputs, Level 1 [Member]
Cash and cash equivalents	1,726		2,187
Total, excluding receivables	12,912		11,260
Fair Value, Inputs, Level 1 [Member] | Equity [Member] | U.S. Equity Securities [Member]
Fair value of plan assets at end of year	4,548	[1]	4,136	[1],[2]
Fair Value, Inputs, Level 1 [Member] | Equity [Member] | International Equity Securities [Member]
Fair value of plan assets at end of year	5,008	[1]	3,466	[1]
Fair Value, Inputs, Level 1 [Member] | Equity [Member] | Commingled Equity Funds [Member]
Fair value of plan assets at end of year	1,287	[1]	1,310	[1]
Commodities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets at end of year			481	[1]
Commodities [Member] | Fair Value, Inputs, Level 2 [Member] | Alternative Investments [Member]
Fair value of plan assets at end of year	516	[1]
Fair Value, Inputs, Level 2 [Member]
Total, excluding receivables	10,819		9,802
Fair Value, Inputs, Level 2 [Member] | Equity [Member] | U.S. Equity Securities [Member]
Fair value of plan assets at end of year	44	[1]	22	[1],[2]
Fair Value, Inputs, Level 2 [Member] | Equity [Member] | International Equity Securities [Member]
Fair value of plan assets at end of year	6	[1]	76	[1]
Fair Value, Inputs, Level 2 [Member] | Equity [Member] | Commingled Equity Funds [Member]
Fair value of plan assets at end of year	1,056	[1]	1,450	[1]
Fair Value, Inputs, Level 2 [Member] | Fixed Income [Member] | Corporate Debt Securities [Member]
Fair value of plan assets at end of year	1,351	[1]
Fair Value, Inputs, Level 2 [Member] | Fixed Income [Member] | U.S. Government Securities [Member]
Fair value of plan assets at end of year	7,262	[1]
Fair Value, Inputs, Level 2 [Member] | Fixed Income [Member] | Other Fixed Income Securities [Member]
Fair value of plan assets at end of year	584	[1]
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member]
Fair value of plan assets at end of year			1,301	[1]
Fair Value, Inputs, Level 2 [Member] | U.S. Government Securities [Member]
Fair value of plan assets at end of year			5,173	[1]
Fair Value, Inputs, Level 2 [Member] | Other Fixed Income Securities [Member]
Fair value of plan assets at end of year			1,299	[1]
Private Equity Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets at end of year	2,085		1,730
Real Estate Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets at end of year	164		125
Hedge Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets at end of year	1,025		750
Fair Value, Inputs, Level 3 [Member]
Total, excluding receivables	3,400		2,663
Fair Value, Inputs, Level 3 [Member] | Equity [Member] | International Equity Securities [Member]
Fair value of plan assets at end of year	16	[1]	16	[1]
Fair Value, Inputs, Level 3 [Member] | Fixed Income [Member] | Corporate Debt Securities [Member]
Fair value of plan assets at end of year	63	[1]
Fair Value, Inputs, Level 3 [Member] | Fixed Income [Member] | Other Fixed Income Securities [Member]
Fair value of plan assets at end of year	47	[1]
Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities [Member]
Fair value of plan assets at end of year			5	[1]
Fair Value, Inputs, Level 3 [Member] | Other Fixed Income Securities [Member]
Fair value of plan assets at end of year			37	[1]
Equity [Member] | U.S. Equity Securities [Member]
Fair value of plan assets at end of year	4,592	[1]	4,158	[1],[2]
Equity [Member] | International Equity Securities [Member]
Fair value of plan assets at end of year	5,030	[1]	3,558	[1]
Equity [Member] | Commingled Equity Funds [Member]
Fair value of plan assets at end of year	2,343	[1]	2,760	[1]
Fixed Income [Member] | Corporate Debt Securities [Member]
Fair value of plan assets at end of year	1,414	[1]
Fixed Income [Member] | U.S. Government Securities [Member]
Fair value of plan assets at end of year	7,262	[1]
Fixed Income [Member] | Other Fixed Income Securities [Member]
Fair value of plan assets at end of year	631	[1]
Commodities [Member] | Alternative Investments [Member]
Fair value of plan assets at end of year	859	[1]
Corporate Debt Securities [Member]
Fair value of plan assets at end of year			1,306	[1]
U.S. Government Securities [Member]
Fair value of plan assets at end of year			5,173	[1]
Other Fixed Income Securities [Member]
Fair value of plan assets at end of year			1,336	[1]
Private Equity Funds [Member]
Fair value of plan assets at end of year	2,085		1,730
Real Estate Funds [Member]
Fair value of plan assets at end of year	164		125
Hedge Funds [Member]
Fair value of plan assets at end of year	1,025		750
Commodities [Member]
Fair value of plan assets at end of year			$ 642	[1]
[1]	Equity securities, fixed income securities, and commodities included derivative assets and liabilities whose fair values were not material as of December 31, 2010 and 2009. LMIMCo's investment policies restrict the use of derivatives to either establish long exposures for purposes of expediency or capital efficiency, or to hedge risks to the extent of a plan's current exposure to such risks. Most derivative transactions are settled on a daily basis.
[2]	U.S. equity securities included shares of our issued and outstanding common stock purchased by investment managers in the amounts of  $7 million (less than .03% of plan assets) as of December 31, 2009.

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Postretirement Benefit Plans (Schedule of Fair Value of Plan Assets Categorized) (Details) (USD  $) In Millions	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009
Beginning Balance	$ 2,663	$ 3,015
Realized gains (losses), net	126	44
Unrealized gains (losses), net	123	236
Purchases, sales, and settlements, net	487	(243)
Transfers in (out of) Level 3	1	(389)
Ending Balance	3,400	2,663
Corporate Debt Securities [Member]
Beginning Balance	5	113
Realized gains (losses), net		(21)
Unrealized gains (losses), net	2	44
Purchases, sales, and settlements, net	61	(71)
Transfers in (out of) Level 3	(5)	(60)
Ending Balance	63	5
Other Fixed Income [Member]
Beginning Balance	37	114
Realized gains (losses), net	2	1
Unrealized gains (losses), net	1	12
Purchases, sales, and settlements, net	8	(84)
Transfers in (out of) Level 3	(1)	(6)
Ending Balance	47	37
Private Equity Funds [Member]
Beginning Balance	1,730	1,417
Realized gains (losses), net	123	66
Unrealized gains (losses), net	103	133
Purchases, sales, and settlements, net	129	114
Ending Balance	2,085	1,730
Real Estate Funds [Member]
Beginning Balance	125	163
Unrealized gains (losses), net	7	(103)
Purchases, sales, and settlements, net	32	65
Ending Balance	164	125
Hedge Funds [Member]
Beginning Balance	750	973
Realized gains (losses), net	1	(1)
Unrealized gains (losses), net	13	57
Purchases, sales, and settlements, net	261	(279)
Ending Balance	1,025	750
International Equity Securities [Member]
Beginning Balance	16	7
Realized gains (losses), net		(1)
Unrealized gains (losses), net	(3)	1
Purchases, sales, and settlements, net	(4)	12
Transfers in (out of) Level 3	7	(3)
Ending Balance	16	16
Commingled Equity Funds [Member]
Beginning Balance		228
Unrealized gains (losses), net		92
Transfers in (out of) Level 3		$ (320)

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Stockholders' Equity (Narrative) (Details) (USD  $)	1 Months Ended	12 Months Ended
Dec. 31, 2010	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008	Oct. 31, 2010
Common stock, shares authorized	1,500,000,000	1,500,000,000
Preferred stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued and outstanding	348,000,000	348,000,000
Common stock, shares outstanding for Balance Sheet presentation purposes	346,000,000	346,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Stock repurchase program authorized amount					$ 3,000,000,000
Repurchases of common stock, shares		33,000,000	24,900,000	29,000,000
Number of shares repurchased during the period under the new share repurchase program		11,200,000
Remaining authorized repurchase amount		2,224,000,000
Repurchases of common stock		2,420,000,000	1,851,000,000	2,931,000,000
Repurchases of common stock		2,483,000,000
Common Stock, Par Value	$ 1	$ 1	$ 1
Additional Paid-in Capital	0	0
Repurchases of common stock under new repurchase program		776,000,000
Value of shares repurchased in current year but settled and paid for in subsequent year	63,000,000
Number Of Shares Repurchased In Current Year But Settled And Paid For In Subsequent Year	900,000
Excess of purchase price over par value recorded as a reduction of retained earnings		$ 1,900,000,000	$ 1,400,000,000

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Stock-Based Compensation (Narrative) (Details) (USD  $) In Millions, unless otherwise specified	12 Months Ended		12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008	Dec. 31, 2010 Directors Plan [Member]	Jun. 30, 2010 Directors Plan [Member]	Dec. 31, 2010 Stock Option and Award Plans [Member]
Non-cash compensation cost	$ 168	$ 154	$ 155
Stock-based compensation, net impact	109	99	100
Cash received from exercise of stock options	59	40	248
Realized tax benefits from stock-based compensation activities	47	56	111
Percentage of market value of common stock that exercise price of options must be at grant date	100.00%
Percentage of the market value of common stock that the exercise price of options to purchase common stock must be at the date of grant	100.00%
Stock options and stock units vested	50.00%				50.00%
Maximum term of stock option or any other award (years)	10					10
Minimum vesting period for restricted stock or stock units payable in stock (years)	3
Percentage of annual compensation in form of equity-based compensation received by directors				50
Shares reserved for issuance	7
Number of years over which stock options vest	three
Number of years over which stock options expire	10
Unrecognized compensation cost	$ 167
Period over which unrecognized compensation cost are expected to be recognized (years)	1.6
Stock options exempt from vesting restrictions	1.5
Share-based compensation arrangement by share-based payment award, number of shares authorized						35

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Stock-Based Compensation (Option Activity) (Details) (USD  $) In Millions, except Share data in Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2010
Stock-Based Compensation
Stock options outstanding, beginning balance	22,550
Number of stock options, granted	3,588
Number of stock options, exercised	(1,405)
Stock options terminated	(236)
Stock options outstanding, ending balance	24,497
Number of Stock Options, Vested and unvested-expected-to-vest at December 31, 2010	24,391
Number of Stock Options, Vested at December 31, 2010	16,943
Weighted Average Exercise Price, Outstanding at December 31, 2009	$ 74.04
Weighted Average Exercise Price, Granted	$ 74.93
Weighted Average Exercise Price, Exercised	$ 41.65
Weighted Average Exercised Price, Terminated	$ 87.29
Weighted Average Exercise Price, Outstanding at December 31, 2010	$ 75.9
Weighted Average Exercise Price, Vested and unvested expected-to-vest at December 31, 2010	$ 75.89
Weighted Average Vested at December 31, 2010	$ 72.88
Weighted Average Remaining Contractual Life, Outstanding at December 31, 2010	5.9
Weighted Average Remaining Contractual Life, Vested and unvested expected-to-vest at December 31, 2010	5.9
Weighted Average Remaining Contractual Life, Vested at December 31, 2010	4.8
Aggregate Intrinsic Value, Outstanding at December 31, 2010	$ 137
Aggregate Intrinsic Value, Vested and unvested-expected-to-vest at December 31, 2010	137
Aggregate Intrinsic Value, Vested at December 31, 2010	$ 137

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Stock-Based Compensation (Stock Options) (Details) (USD  $) In Millions, except Per Share data	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Stock-Based Compensation
Weighted average grant-date fair value of stock options granted	$ 14.05	$ 14.91	$ 19.31
Aggregate fair value of all the stock options that vested	$ 71	$ 72	$ 78
Aggregate intrinsic value of all of the stock options exercised	$ 50	$ 37	$ 263

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Stock-Based Compensation (Stock-Based Compensation Awards) (Details)	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Stock-Based Compensation
Risk-free interest rate	2.49%	1.69%	2.83%
Dividend yield	3.40%	2.30%	1.70%
Volatility factors	0.27%	0.24%	0.20%
Expected option life (in years)	5	5	5

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Stock-Based Compensation (Summarize Activity Related to Nonvested RSUs Activity) (Details) (USD  $) In Thousands, except Per Share data	12 Months Ended
Dec. 31, 2010
Number of RSUs [Member]
Nonvested at December 31, 2009	2,969
Granted	1,943
Vested	(971)
Terminated	(185)
Nonvested at December 31, 2010	3,756
Weighted Average Grant-Date Fair Value Per Share [Member]
Nonvested at December 31, 2009	91.06
Granted	74.68
Vested	92.85
Terminated	82.84
Nonvested at December 31, 2010	82.53

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Legal Proceedings, Commitments, and Contingencies (Narrative) (Details)	12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended										12 Months Ended
Dec. 31, 2010 USD ( $)	Dec. 31, 2009 USD ( $)	Dec. 31, 2010 Soothsayer [Member] USD ( $)	Jun. 24, 2009 Soothsayer [Member] USD ( $)	Dec. 31, 2010 Soothsayer [Member] Currency, British Pound Sterling [Member] GBP ( £)	Jun. 24, 2009 Soothsayer [Member] Currency, British Pound Sterling [Member] GBP ( £)	Dec. 31, 2010 N Y Metropolitan Transportation Authority [Member] USD ( $)	Apr. 24, 2009 N Y Metropolitan Transportation Authority [Member] USD ( $)	Dec. 31, 2010 Environmental Matters [Member] USD ( $)	Dec. 31, 2009 Environmental Matters [Member] USD ( $)	Dec. 31, 2010 Environmental Matters [Member] Other Assets [Member] Government [Member] USD ( $)	Dec. 31, 2009 Environmental Matters [Member] Other Assets [Member] Government [Member] USD ( $)	Dec. 31, 2010 Environmental Matters [Member] Government [Member] USD ( $)	Dec. 31, 2009 Environmental Matters [Member] Government [Member] USD ( $)	Dec. 31, 2010 Standby Letters of Credit [Member] USD ( $)	Dec. 31, 2009 Standby Letters of Credit [Member] USD ( $)	Dec. 31, 2010 United Launch Alliance [Member] USD ( $)	Dec. 31, 2009 United Launch Alliance [Member] USD ( $)	Sep. 27, 2010 United Launch Alliance [Member] Line Of Credit Expires October1, 2013 [Member] USD ( $)	Dec. 31, 2010 Other Liabilities [Member] USD ( $)	Dec. 31, 2009 Other Liabilities [Member] USD ( $)	Dec. 31, 2010 Third Party Guarantees [Member] USD ( $)	Dec. 31, 2009 Third Party Guarantees [Member] USD ( $)
Dividend distributions received																	$ 232,000,000
Contract value				225,000,000		144,000,000		323,000,000
Contract payments received to date			61,000,000		39,000,000		241,000,000
Damages sought including interest but excluding potential penalties	80,000,000
Liquidated damages, demanded on amount paid under contract			3,000,000		2,000,000
Liabilities recorded relative to environmental matters									935,000,000	877,000,000										807,000,000	748,000,000
Environmental costs eligible for future recovery											699,000,000	630,000,000	810,000,000	740,000,000
Percentage of expenditures for certain remediation activities	50.00%
Outstanding letters of credit, surety bonds and other arrangements															4,200,000,000	3,600,000,000
Third party guarantees outstanding	1,000,000,000																					1,000,000,000	656,000,000
Percentage of total guarantees that relate to guarantees of contractual performance of joint ventures	85.00%
Revolving line of credit	1,500,000,000	1,500,000,000																	400,000,000
Maximum other financial support																	200,000,000
Number of years the difference between book value and underlying equity in equity method investment is being recognized ratably																	10
Ownership interest in affiliated entity																	50.00%
Amount of net assets exceeded book value of investment recognizing ratably over 10 years																	395,000,000
Total equity method investment	$ 671,000,000	$ 524,000,000															$ 513,000,000	$ 454,000,000

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Fair Value Measurements (Narrative) (Details) (USD  $)	3 Months Ended	12 Months Ended
Dec. 31, 2010	Dec. 31, 2010	Dec. 31, 2009	Nov. 30, 2009
Fair Value Measurements
Estimated fair values of long-term debt instruments	$ 6,211,000,000	$ 6,211,000,000	$ 5,926,000,000
Maximum maturity date of highly liquid instruments (in days)		90
Unamortized discount on long-term debt	505,000,000	505,000,000	351,000,000
Carrying amount of long-term debt instruments, excluding unamortized discounts	5,524,000,000	5,524,000,000	5,403,000,000	1,500,000,000
Impairment charge related to sale of PAE	$ 109,000,000

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Fair Value Measurements (Assets and Liabilities Measured and Recorded at Fair Value on Balance Sheet on a Recurring Basis and Level within Fair Value Hierarchy) (Details) (USD  $) In Millions	Dec. 31, 2010	Dec. 31, 2009
Assets
Derivative assets	$ 26	$ 21
Liabilities
Derivative liabilities	33	23
Equity [Member]
Assets
Mortgage-backed securities	86	89
Equity [Member] | Fair Value, Inputs, Level 1 [Member]
Assets
Mortgage-backed securities	86	89
Mutual Funds [Member]
Assets
Mortgage-backed securities	450	428
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Assets
Mortgage-backed securities	450	428
U.S. Government Securities [Member]
Assets
Mortgage-backed securities	719	412
U.S. Government Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Assets
Mortgage-backed securities	719	412
Corporate Debt Securities [Member]
Assets
Mortgage-backed securities	34	80
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Assets
Mortgage-backed securities	34	80
U.S. Government-sponsored Enterprises Debt Securities [Member]
Assets
Mortgage-backed securities	31	60
U.S. Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Assets
Mortgage-backed securities	31	60
Mortgage-backed securities [Member]
Assets
Mortgage-backed securities	24	26
Mortgage-backed securities [Member] | Fair Value, Inputs, Level 2 [Member]
Assets
Mortgage-backed securities	24	26
Other Securities [Member]
Assets
Mortgage-backed securities	15	8
Other Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Assets
Mortgage-backed securities	15	8
Fair Value, Inputs, Level 2 [Member]
Assets
Derivative assets	26	21
Liabilities
Derivative liabilities	$ 33	$ 23

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Leases (Narrative) (Details) (USD  $)	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Leases
Rental equipment and facilities under operating leases	$ 399,000,000	$ 373,000,000	$ 360,000,000
Future minimum lease commitments, total	1,300,000,000
Future minimum lease commitments, due in 2011	300,000,000
Future minimum lease commitments, due in 2012	233,000,000
Future minimum lease commitments, due in 2013	183,000,000
Future minimum lease commitments, due in 2014	142,000,000
Future minimum lease commitments, due in 2015	117,000,000
Future minimum lease commitments, thereafter	$ 324,000,000

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Summary of Quarterly Information (Parenthetical) (Details) (USD  $) In Millions, except Per Share data	3 Months Ended	12 Months Ended	3 Months Ended
Dec. 31, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2010 Tax Relief, Unemployment Insurance Reauthorization, and Job Creation Act of 2010 [Member]	Sep. 30, 2010 Cost of Sales from VESP [Member]	Dec. 31, 2010 Closure of MS2 Eagan [Member]	Sep. 30, 2009 Closure of IRS Examinations [Member]	Dec. 31, 2010 Selling Ownership Transaction [Member]	Dec. 31, 2010 Pacific Architects And Engineers [Member]
Reduction in net earnings			$ 96	$ 96			$ 116
Recognition of tax benefits					69				58
Increase (decrease) in net earning per share	$ 0.12		$ 0.25	$ 0.26	$ 0.18	$ 0.12	$ 0.32	$ 0.08	$ 0.15		$ 0.07
Adjustments from planned sale of PAE											24
Reduction in net earnings								27
Gain on divestiture of business				184						184
Discontinued operation benefit from recognition of deferred tax asset		96
Gain Loss On Divestiture Of Business Per Share										$ 0.51
Reduction of tax expense due to tax benefit	43					43
Voluntary Executive Separation Program Charge				$ 220			$ 178

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Summary of Quarterly Information (Quarterly Financial Information Table) (Details) (USD  $) In Millions, except Per Share data	3 Months Ended	12 Months Ended
Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Sep. 30, 2009	Jun. 30, 2009	Mar. 31, 2009	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Summary of Quarterly Information
Net sales	$ 12,794	[1],[2]	$ 11,375	[2],[3]	$ 11,295	[2],[4],[5]	$ 10,339	[2],[5],[6]	$ 12,203	[2]	$ 10,767	[2],[7]	$ 10,940	[2],[5]	$ 10,085	[2],[5]	$ 45,803		$ 43,995		$ 41,372
Operating profit	1,128	[1],[2]	889	[2],[3]	1,121	[2],[4],[5]	959	[2],[5],[6]	1,244	[2]	1,068	[2],[7]	1,063	[2],[5]	1,040	[2],[5]	4,097	[8]	4,415	[8]	5,049	[8]
Earnings from continuing operations	829	[1],[2]	565	[2],[3]	718	[2],[4],[5]	533	[2],[5],[6]	836	[2]	786	[2],[7]	720	[2],[5]	657	[2],[5]	2,645		2,999		3,167
Earnings from discontinued operations	154	[1],[2]	6	[2],[3]	107	[2],[4],[5]	14	[2],[5],[6]	(9)	[2]	11	[2],[7]	14	[2],[5]	9	[2],[5]	281		25		50
Net earnings	$ 983	[1],[2]	$ 571	[2],[3]	$ 825	[2],[4],[5]	$ 547	[2],[5],[6]	$ 827	[2]	$ 797	[2],[7]	$ 734	[2],[5]	$ 666	[2],[5]	$ 2,926		$ 3,024		$ 3,217
Basic earnings per share	$ 2.76	[1],[2],[9]	$ 1.59	[2],[3],[9]	$ 2.25	[2],[4],[5],[9]	$ 1.46	[2],[5],[6],[9]	$ 2.19	[2],[9]	$ 2.09	[2],[7],[9]	$ 1.9	[2],[5],[9]	$ 1.69	[2],[5],[9]	$ 8.03		$ 7.86		$ 8.05
Diluted earnings per share	$ 2.73	[1],[2],[9]	$ 1.57	[2],[3],[9]	$ 2.22	[2],[4],[5],[9]	$ 1.45	[2],[5],[6],[9]	$ 2.17	[2],[9]	$ 2.07	[2],[7],[9]	$ 1.88	[2],[5],[9]	$ 1.68	[2],[5],[9]	$ 7.94		$ 7.78		$ 7.86
[1]	Earnings from continuing operations for the fourth quarter of 2010 included a charge to cost of sales primarily related to our decision to consolidate certain Electronic Systems' operations (see Note 3), which reduced net earnings by  $27 million ( $.08 per share). Earnings from continuing operations for the fourth quarter of 2010 also increased by  $43 million ( $.12 per share) due to the recognition of a tax benefit related to the retroactive extension of the research and development tax credit from January 1, 2010 through December 31, 2011 (see Note 9). Earnings from discontinued operations for the fourth quarter of 2010 included a gain of  $184 million ( $.51 per share) from the sale of EIG, and a decrease of  $24 million ( $.07 per share) associated with the planned sale of PAE.
[2]	It is our practice to close the books and records on the Sunday prior to the end of the calendar quarter to align our financial closing with our business processes. This practice only affects interim periods, as our fiscal year ends on December 31.
[3]	Earnings from continuing operations for the third quarter of 2010 included a charge of  $178 million to cost of sales related to the VESP (see Note 3), which reduced net earnings by  $116 million ( $.32 per share).
[4]	Earnings from discontinued operations for the second quarter of 2010 included a tax benefit of  $96 million due to the recognition of a deferred tax asset for PAE book and tax differences recorded when the decision was made to dispose of PAE (see Note 2).
[5]	Net sales and operating profit varies from the amount previously reported on Form 10-Q as a result of PAE and EIG being classified as discontinued operations in the second and third quarters of 2010, respectively.
[6]	Earnings from continuing operations for the first quarter of 2010 included an increase in income tax expense resulting from legislation that eliminates the tax deduction for benefit costs reimbursed under Medicare Part D (see Note 9), which reduced net earnings by  $96 million ( $.25 per share).
[7]	Earnings from continuing operations for the third quarter of 2009 included a reduction in income tax expense resulting from the closure of IRS examinations for tax years 2005-2007, which increased net earnings by  $58 million ( $.15 per share).
[8]	(a) Operating profit included equity in net earnings (losses) of equity investees as follows: (In millions) 2010 2009 2008 Aeronautics  $ 7  $ 9  $ 21 Electronic Systems 50 53 43 Space Systems 259 218 224 Total business segments 316 280 288 Corporate activities (4 ) (2 ) — Total  $ 312  $ 278  $ 288
[9]	The sum of the quarterly earnings per share amounts for 2010 and 2009 do not equal the earnings per share amount included on the Statements of Earnings, primarily due to the timing of share repurchases during 2010 and 2009.

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