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Income Taxes (Details 2) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
A reconciliation of the provision (benefit) for income taxes      
Statutory U.S. Federal tax rate (as a percent) 35.00%    
Tax provision on pretax earnings (loss) from continuing operations at statutory U.S. Federal tax rate $ (142) $ 148 $ 75
Increase (decrease) in provision for income taxes due to:      
Non-U.S. income taxes (10) (25) (18)
Goodwill Impairment 224    
State taxes, net of federal benefit (1) (2) (1)
Intraperiod tax allocation - U.S.   (8) (48)
Tax law changes 3 1 (3)
Changes in valuation allowance 15 11 75
Other items (4) 4 3
Provision for income taxes 85 129 83
Reduction of valuation allowance and benefit allocated to income tax expense from continuing operations   $ 8 $ 48