Annual report pursuant to Section 13 and 15(d)

Income Taxes Income Taxes (Components of Income Tax Expense (Benefit)) (Details)

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Income Taxes Income Taxes (Components of Income Tax Expense (Benefit)) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Current:      
U.S. federal $ 361 $ 326 $ 384
State and local 28 29 20
Foreign jurisdictions 87 73 75
Total 476 428 479
Deferred:      
U.S. federal (317) (31) (86)
State and local (7) (8) 3
Foreign jurisdictions 0 (4) (7)
Total (324) (43) (90)
Total income tax expense $ 152 $ 385 $ 389