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Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
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Dec. 31, 2010
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| Income Taxes [Abstract] | ||
| Net operating loss carryforwards | $ 222 | $ 159 |
| Asset retirement obligations | 447 | 494 |
| Pension benefit obligations | 130 | 133 |
| Other | 117 | 171 |
| Total deferred tax assets | 916 | 957 |
| Property and equipment | (4,475) | (3,130) |
| Fair value of financial instruments | (218) | (70) |
| Long-term debt | (185) | (198) |
| Taxes on unremitted foreign earnings | (936) | (211) |
| Other | (27) | (20) |
| Total deferred tax liabilities | (5,841) | (3,629) |
| Net deferred tax liability | $ (4,925) | $ (2,672) |
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- Definition
Deferred Tax Liabilities Long Term Debt No definition available.
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- Definition
For entities that net deferred tax assets and tax liabilities, represents the unclassified net amount of deferred tax assets and liabilities as of the balance sheet date, which result from applying the applicable enacted tax rate to net temporary differences and carryforwards pertaining to assets or liabilities. A temporary difference is a difference between the tax basis of an asset or liability and its carrying amount in the financial statements prepared in accordance with generally accepted accounting principles that will reverse in ensuing periods. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The aggregate tax effects as of the balance sheet date of all future tax deductions arising from temporary differences between tax basis and generally accepted accounting principles basis recognition of assets, liabilities, revenues and expenses, which can only be deducted for tax purposes when permitted under enacted tax laws; net of deducting the allocated valuation allowance, if any, to reduce such amount to net realizable value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The sum of the tax effects as of the balance sheet date of the amount of excesses of tax deductions over gross income in a year which cannot be used on the tax returns in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The tax effect as of the balance sheet date of the amount of estimated future tax deductions arising from other temporary differences not otherwise specified in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from pension costs, which can only be deducted for tax purposes when actual costs are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from estimated costs required to satisfy asset retirement obligations, which can only be deducted for tax purposes when relevant costs (such as closure and postclosure costs) are actually incurred, and which can only be realized if sufficient tax basis income is generated in future periods to enable the deduction to be taken. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cumulative amount of all deferred tax liabilities, which result from applying the applicable tax rate to net taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax. A taxable temporary difference is a difference between the tax basis and the carrying amount of an asset or liability in the financial statements prepared in accordance with generally accepted accounting principles that will result in taxable amounts in one or more future periods. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount as of the balance sheet date for deferred tax consequences attributable to taxable temporary differences resulting from derivative transactions. Deferred tax consequences are future tax effects on income taxes as measured by the applicable enacted tax rate and provisions of the enacted tax law resulting from temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cumulative amount of the estimated future tax effects attributable to other temporary differences not otherwise specified in this taxonomy that were expensed for tax purposes but capitalized in conformity with generally accepted accounting principles, or which were recognized as revenue under GAAP but not for tax purposes, which will reverse in future periods. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the tax basis of capital assets and the basis of capital assets computed in accordance with generally accepted accounting principles. The difference in basis, attributable to different capitalization of costs, depreciation, or amortization methodologies, will increase future taxable income when such basis difference is realized. Capital assets include but are not limited to assets such as land, real estate, leasehold improvements, machinery and equipment and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount as of the balance sheet date of the estimated future tax effects attributable to undistributed earnings of subsidiaries and other recognized entities in countries outside the country of domicile which will increase future taxable income when such earnings are distributed into the country of domicile. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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