v2.4.0.6
Income Taxes, Components of Income Tax Expense (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Current Income Tax Expense (Benefit) [Abstract]      
Federal $ 3,352 $ 1,425 $ (3,952)
State and Local 468 548 (334)
Foreign 52 78 164
Total current 3,872 2,051 (4,122)
Deferred Income Tax Expense (Benefit) [Abstract]      
Federal 3,088 4,060 8,709
State and Local 471 211 794
Foreign 14 16 (50)
Total deferred 3,573 4,287 9,453
Income tax expense $ 7,445 $ 6,338 $ 5,331