Property, Plant and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Abstract]
Land	$ 54	$ 60
Buildings and improvements	438	431
Machinery, equipment, furniture and fixtures	1,890	1,736
Leasehold improvements	344	343
Gross property, plant and equipment	2,726	2,570
Accumulated depreciation and amortization	(1,605)	(1,473)
Property, plant and equipment, net	$ 1,121	$ 1,097