Property, Plant and Equipment (Details) - USD ($) $ in Millions	Mar. 31, 2017	Mar. 31, 2016
Property, Plant and Equipment [Abstract]
Land and property rights	$ 173	$ 179
Buildings	1,309	1,325
Machinery and equipment	4,312	4,265
Property, plant and equipment, gross	5,794	5,769
Accumulated depreciation and amortization	(2,575)	(2,398)
Property, pant and equipment, net excluding construction in progress	3,219	3,371
Construction in progress	138	135
Property, plant and equipment, net	$ 3,357	$ 3,506