Income Tax Expense Related To Continuing Operations (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current
Federal	$ (251)	$ (305)	$ (172)
State and local	(6)	(44)	(26)
International	345	398	350
Current income tax expense	88	49	152
Deferred
Federal	(9)	63	(27)
State and local	(20)	7	(6)
International	(24)	(86)	(59)
Deferred income tax expense	(53)	(16)	(92)
Income tax expense	$ 35	$ 33	$ 60