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Income Taxes - Income Tax Expense (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Current      
Federal $ (10) $ 132 $ 67
State and local 6 2 7
Foreign 19 25 25
Deferred      
Federal (20) (22) 7
State and local (4) (4) 1
Foreign 6 (8) (11)
Total income tax (benefit) expense $ (3) $ 125 $ 96
Effective income tax rate (11.10%) 215.50% 43.40%