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Income Taxes (Income Tax Expense (Benefit)) (Details) (USD $)
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3 Months Ended | 6 Months Ended | ||
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Jun. 30, 2013
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Jun. 30, 2012
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Jun. 30, 2013
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Jun. 30, 2012
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| Income Tax Disclosure [Abstract] | ||||
| Income tax expense (benefit) | $ 48,000,000 | $ 52,000,000 | $ 98,000,000 | $ 58,000,000 |
| Effective Income Tax Rate, Continuing Operations | 41.00% | 14.00% | 33.00% | 15.00% |
| Unrecognized Tax Benefits | 79,000,000 | 79,000,000 | ||
| Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 24,000,000 | 24,000,000 | ||
| Unrecognized Tax Benefits Resulting in Net Operating Loss Carryforward | 55,000,000 | 55,000,000 | ||
| Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued | 14,000,000 | 14,000,000 | ||
| Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Lower Bound | 0 | 0 | ||
| Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound | $ 5,000,000 | $ 5,000,000 | ||
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- Definition
Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The estimated lower bound of the reasonably possible change in the total amount of the unrecognized tax benefit (that will significantly increase or decrease within twelve months of the balance sheet date) for a tax position taken. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The estimated upper bound of the reasonably possible change in the total amount of the unrecognized tax benefit (that will significantly increase or decrease within twelve months of the balance sheet date) for a tax position taken. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of an unrecognized tax benefit that is directly related to a position taken in a tax year that results in a net operating loss carryforward. This amount is presented as a reduction of the related deferred tax asset in the balance sheet if that deferred tax asset is not used. This amount is presented separately from the deferred tax asset for a net operating loss carryforward if this unrelated tax benefit is associated with a different tax position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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