v2.4.0.6
Income Taxes Income Taxes Textuals (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Income Taxes (Textuals) [Line Items]      
Unrecognized tax benefits that would impact effective tax rate $ 224,000,000    
Income Taxes [Abstract]      
Income tax expense 31,000,000 201,000,000 99,000,000
Undistributed earnings of non-United States subsidiaries where no provision has been made 8,000,000,000    
Effective income tax rate expense rate 2.50% 12.90% 9.50%
Extension of tax credit for research activities 20,000,000    
IRS Statutory Notice of Deficiency proposed assessment of additional taxes 75,000,000    
Penalties associated with IRS Statutory Notice of Deficiency proposed assessment 52,000,000    
Brazilian first administrative appeal level reduction of assessed penatlites 50.00%    
Recoverability of Deferred Income Tax Assets [Abstract]      
Number of years of cumulative pretax income in a particular jurisdiction to determine deferred tax assets will not be recognized three    
Number of years of cumulative pretax losses in particular jurisdiction to determine if deferred tax assets can be recognized three    
Number of years estimated to resolve Brazilian tax assessment 10    
Income tax examination, penalties and interest accrued $ 34,000,000 $ 29,000,000