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Income Taxes - Domestic and Foreign Components of Income (Loss) Before Income Taxes (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]      
United States $ (12) $ 39 $ (64)
Foreign (81) 19 12
Income (loss) before income taxes $ (93) $ 58 $ (52)