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Income Taxes (Details Textuals) (USD $) In Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2011 | Sep. 30, 2011
Income Taxes (Textuals) |  |
Unrecognized tax benefits as a result of potential resolutions of prior years' tax | $ 851 | $ 851
Unrecognized tax benefits, amounts recorded to equity | 606 | 606
Unrecognized tax benefits impact not possible to quantify | 245 | 245
Open tax years by major tax jurisdiction |  | 2005 through 2007
Tax Benefits | 77 | 102
Tax Benefits from Discontinued Operations |  | $ 36

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