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Income Taxes - Amounts of U.S. and Foreign Income (Loss) from Continuing Operations Before Income Taxes (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Income (loss) from continuing operations before income taxes, Income Tax Reconciliation      
Income from continuing operations before income taxes, Domestic $ 4,703 $ 3,810 $ 2,218
Income from continuing operations before income taxes, Foreign 11,522 14,502 6,496
Income before income taxes 16,225 18,312 8,714
Federal statutory income tax 5,679 6,409 3,050
Foreign taxes in excess of federal statutory rate 2,924 1,375 1,902
Federal manufacturing deduction (73) (75) (40)
State income tax 272 173 57
Other (32) (19) (52)
Provision for income taxes $ 8,770 $ 7,863 $ 4,917
Income (loss) from continuing operations before income taxes, Percent of Pretax Income      
Income from continuing operations before income taxes, United States, Percentage 29.00% 20.80% 25.50%
Income from continuing operations before income taxes, Foreign, Percentage 71.00% 79.20% 74.50%
Income (loss) before income taxes, Percent 100.00% 100.00% 100.00%
Domestic federal statutory rate 35.00% 35.00% 35.00%
Foreign taxes in excess of federal statutory rate 18.00% 7.50% 21.80%
Federal manufacturing deduction, Rate (0.40%) (0.40%) (0.50%)
State income tax, Rate 1.70% 0.90% 0.70%
Other, Rate (0.20%) (0.10%) (0.60%)
Total Income taxes charged to income (loss), Rate 54.10% 42.90% 56.40%