Income Taxes (Components of Income Tax Expense) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current income tax expense
U.S. federal	$ 158	$ 128	$ 83
U.S. State and local	22	25	6
Non-U.S.	276	195	180
Total current income tax	456	348	269
Deferred income tax expense
U.S. federal	29	(78)	(8)
Non-U.S.	7	(10)	(3)
U.S. State and local	(36)	(1)	(5)
Total deferred income tax	0	(89)	(16)
Total	$ 456	$ 259	$ 253