Provision for (Benefit from) Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current
Federal	$ (1)	$ (32)	$ (1)
State	3	3	4
Foreign	63	40	79
Current income tax provision (benefit)	65	11	82
Deferred
Federal	51	45	89
State	5	(1)	2
Foreign	(5)	14	(26)
Deferred income tax provision	51	58	65
Provision for income taxes	$ 116	$ 69	$ 147