v2.4.0.6

Income Taxes Income Taxes Textuals (Details) (USD $) | 12 Months Ended
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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 |

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