Property, Plant and Equipment - Property, Plant and Equipment (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Land	$ 60	$ 62
Buildings and improvements	431	420
Machinery, equipment, furniture and fixtures	1,736	1,670
Leasehold improvements	343	309
Gross property, plant and equipment	2,570	2,461
Accumulated depreciation and amortization	(1,473)	(1,400)
Property, plant and equipment, net	$ 1,097	$ 1,061