Income Taxes - Schedule of Provision for Income Taxes on Income from Continuing Operations (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current:
Federal	$ 85	$ 10	$ 33
Foreign	167	427	409
State and local	9	(1)	(7)
Current provision for income taxes, total	261	436	435
Deferred:
Federal	129	28	37
Foreign	(227)	(211)	(320)
State and local	(1)	2	(4)
Deferred provision for income taxes, total	(99)	(181)	(287)
Provision for income taxes, Total	$ 162	$ 255	$ 148