Income Taxes - Comparative Analysis of Components of Income Tax Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current
U.S. federal	$ 8	$ 8	$ (23)
State and local	1	1	1
Foreign	161	119	101
Total current income tax expenses	170	128	79
Deferred
U.S. federal	(101)	(35)	16
State and local	(13)	(5)	(3)
Foreign	(37)	(25)	(21)
Total deferred income tax expenses	(151)	(65)	(8)
Income tax expense	$ 19	$ 63	$ 71