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Income Taxes (Details) (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Income Taxes (Amounts in paragraphs)
Effective tax rate on income from continuing operations	34.00%	(9.60%)	34.30%	10.40%
Recognition of net tax benefits, as a result of the settlement				$ 298
Recognition of net tax benefits, as a result of the settlement, in cash				66
Reduction in liability for uncertain tax provisions		$ 311		$ 311

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

Reflects the effects of adjustments of previously recorded tax expense, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, IRS tax settlement and unusual repatriation of foreign earnings.

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