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Income Taxes (Details Textual) (USD $) In Millions, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009 | Dec. 31, 2008
Income Tax Contingency [Line Items] |  |  |  |
Net deferred tax liabilities | $ 2,066 | $ 2,336 | $ 2,091 |
Operating loss carryforward potential benefit | 14 | 10 | 7 |
Increase in unrecognized tax benefits associated with foreign tax position | 13 | 82 |  |
Increase in balance of unrecognized tax benefits associated with reduction in tax | 9 | 1 | 10 |
Income Taxes (Textual) [Abstract] |  |  |  |
Unrecognized tax benefit | 131 | 118 | 58 | 61
Deferred tax asset unrecognized tax benefits |  | 73 |  |
Unrecognized tax benefits decreases resulting from settlements with taxing authorities and from lapse of applicable statute of limitations |  | 9 |  |
Net increase in the balance of unrecognized tax benefit | 13 |  |  |
Unrecognized tax benefits period increase decrease recorded as increase in goodwill | 10 |  |  |
Unrecognized Tax Benefits Period Increase Decrease Recorded as Reduction in income tax expense | 131 |  |  |
Reduction in income tax expense if unrecognized tax benefit accrued were realized | 1 |  |  |
Accrued income tax interest and penalties related to unrecognized tax benefit | 8 |  |  |
Foreign tax credit | 106 |  |  |
Excess foreign tax credit, valuation allowance | 1 |  |  |
Undistributed earnings of foreign subsidiaries | 2,503 | 3,789 |  |
Current income tax expense | 1,289 | 903 | 909 |
Foreign Country [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Income tax interest and penalties related to unrecognized tax benefit | 6 |  |  |
Net operating loss carryforward | 34 |  |  |
Operating loss carryforward potential benefit | 7 |  |  |
Operating loss carryforward valuation allowance | 5 |  |  |
Increase in unrecognized tax benefits associated with foreign tax position |  | 73 |  |
Increase in balance of unrecognized tax benefits associated with reduction in tax | 10 |  |  |
Domestic Country [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Income tax interest and penalties related to unrecognized tax benefit | 7 |  |  |
Net operating loss carryforward | 20 |  |  |
Operating loss carryforward potential benefit | 7 |  |  |
Operating loss carryforward valuation allowance | 7 |  |  |
Grant Predico Inc [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Net deferred tax liabilities | $ 88 |  |  |

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