v3.3.1.900

Income Taxes (Federal Statutory) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Federal tax at statutory rate | $ 4,680 | $ 4,363 | $ 3,890
State income taxes, net of federal benefit | 326 | 329 | 319
Foreign income taxes, net of federal credit | 13 | 0 | 15
Nontaxable income attributable to noncontrolling interests | (69) | (62) | (103)
Other adjustments | (79) | (114) | (313)
Income tax expense | 4,959 | 3,873 | 3,980
Uncertain And Effectively Settled Tax Positions, Net [Member] |  |  |
Other adjustments | 15 | (408) | 58
Accrued Interest On Uncertain And Effectively Settled Tax Positions Net [Member] |  |  |
Other adjustments | $ 73 | $ (235) | $ 114

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