Property, Plant and Equipment, net (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 16,089	$ 15,361
Less: accumulated depreciation and amortization	(9,965)	(9,586)
Total property, plant and equipment, net	6,124	5,775
Land
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	135	131
Buildings
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	6,553	6,401
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	7,871	7,624
Construction in progress
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 1,530	$ 1,205