- Comparative Analysis of Components of Income Tax Expense (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current
U.S. federal	$ 38	$ 25	$ 0
State and local	3	4	4
Foreign	92	81	89
Total current income tax expenses	133	110	93
Deferred
U.S. federal	2	(4)	(25)
State and local	7	2	(20)
Foreign	(11)	14	(29)
Total deferred income tax expenses	(2)	12	(74)
Income tax expense	$ 131	$ 122	$ 19