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Consolidated Statements of Financial Position (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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|---|---|---|
| Current assets [Abstract] | ||
| Cash and cash equivalents | $ 1,586us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 1,432us-gaap_CashAndCashEquivalentsAtCarryingValue |
| Accounts receivable, net (Note 11) | 1,611us-gaap_AccountsReceivableNetCurrent | 1,414us-gaap_AccountsReceivableNetCurrent |
| Materials and supplies | 712us-gaap_MaterialsSuppliesAndOther | 653us-gaap_MaterialsSuppliesAndOther |
| Current deferred income taxes (Note 8) | 277us-gaap_DeferredTaxAssetsNetCurrent | 268us-gaap_DeferredTaxAssetsNetCurrent |
| Other current assets | 493us-gaap_OtherAssetsCurrent | 223us-gaap_OtherAssetsCurrent |
| Total current assets | 4,679us-gaap_AssetsCurrent | 3,990us-gaap_AssetsCurrent |
| Investments | 1,390us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures | 1,321us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures |
| Net properties (Note 12) | 46,272us-gaap_PropertyPlantAndEquipmentNet | 43,749us-gaap_PropertyPlantAndEquipmentNet |
| Other assets | 375us-gaap_OtherAssetsNoncurrent | 671us-gaap_OtherAssetsNoncurrent |
| Total assets | 52,716us-gaap_Assets | 49,731us-gaap_Assets |
| Current liabilities [Abstract] | ||
| Accounts payable and other current liabilities (Note 13) | 3,303us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent | 3,086us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent |
| Debt due within one year (Note 15) | 462us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent | 705us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent |
| Total current liabilities | 3,765us-gaap_LiabilitiesCurrent | 3,791us-gaap_LiabilitiesCurrent |
| Debt due after one year (Note 15) | 11,018us-gaap_LongTermDebtAndCapitalLeaseObligations | 8,872us-gaap_LongTermDebtAndCapitalLeaseObligations |
| Deferred income taxes (Note 8) | 14,680us-gaap_DeferredTaxLiabilitiesNoncurrent | 14,163us-gaap_DeferredTaxLiabilitiesNoncurrent |
| Other long-term liabilities | 2,064us-gaap_OtherLiabilitiesNoncurrent | 1,680us-gaap_OtherLiabilitiesNoncurrent |
| Commitments and contingencies (Notes 17 and 18) | ||
| Total liabilities | 31,527us-gaap_Liabilities | 28,506us-gaap_Liabilities |
| Common shareholders' equity [Abstract] | ||
| Common shares, $2.50 par value, 1,400,000,000 authorized; 1,110,100,423 and 1,109,657,652 issued; 883,366,476 and 912,001,996 outstanding, respectively | 2,775us-gaap_CommonStockValue | 2,774us-gaap_CommonStockValue |
| Paid-in-surplus | 4,321us-gaap_AdditionalPaidInCapital | 4,210us-gaap_AdditionalPaidInCapital |
| Retained earnings | 27,367us-gaap_RetainedEarningsAccumulatedDeficit | 23,901us-gaap_RetainedEarningsAccumulatedDeficit |
| Treasury stock | (12,064)us-gaap_TreasuryStockValue | (8,910)us-gaap_TreasuryStockValue |
| Accumulated other comprehensive loss (Note 10) | (1,210)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax | (750)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax |
| Total common shareholders' equity | 21,189us-gaap_StockholdersEquity | 21,225us-gaap_StockholdersEquity |
| Total liabilities and common shareholders' equity | $ 52,716us-gaap_LiabilitiesAndStockholdersEquity | $ 49,731us-gaap_LiabilitiesAndStockholdersEquity |
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- Definition
Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences, net of deferred tax asset attributable to deductible temporary differences and carryforwards net of valuation allowances expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The carrying amount of capitalized costs of materials, supplies, and other assets, which are not included in inventory but used in production. No definition available.
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| X | ||||||||||
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- Definition
Aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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