Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
Mar. 26, 2017	Mar. 27, 2016
Operating activities
Net earnings	$ 763	$ 898
Adjustments to reconcile net earnings to net cash provided by operating activities
Depreciation and amortization	285	296
Stock-based compensation	44	44
Severance charges		99
Changes in assets and liabilities
Receivables, net	(667)	(558)
Inventories, net	(404)	(310)
Accounts payable	1,111	751
Customer advances and amounts in excess of costs incurred	(204)	(146)
Postretirement benefit plans	345	246
Income taxes	175	225
Other, net	218	122
Net cash provided by operating activities	1,666	1,667
Investing activities
Capital expenditures	(170)	(151)
Other, net	4	4
Net cash used for investing activities	(166)	(147)
Financing activities
Repurchases of common stock	(500)	(501)
Dividends paid	(544)	(533)
Proceeds from stock option exercises	31	28
Other, net	(108)	(152)
Net cash used for financing activities	(1,121)	(1,158)
Net change in cash and cash equivalents	379	362
Cash and cash equivalents at beginning of period	1,837	1,090
Cash and cash equivalents at end of period	$ 2,216	$ 1,452

Depreciation and Amortization Including Discontinued Operations

No definition available.

Name:	lmt_DepreciationAndAmortizationIncludingDiscontinuedOperations
Namespace Prefix:	lmt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are voluntarily and involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.

+ References

No definition available.