Components of Restructuring Costs (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 285	$ 130	$ (6)
Employee Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	194	115	34
Reserve adjustments	(14)	(32)	(49)
Contract Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	27	5	10
Reserve adjustments			(3)
Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring charges	78	42	4
Reserve adjustments			(2)
Cost of Goods Sold
Restructuring Cost and Reserve [Line Items]
Restructuring charges	118	38	(10)
Cost of Goods Sold | Employee Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	72	14	10
Reserve adjustments	(1)	(19)	(19)
Cost of Goods Sold | Contract Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	9	3	2
Reserve adjustments			(3)
Cost of Goods Sold | Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring charges	38	40	2
Reserve adjustments			(2)
Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges	103	78	1
Selling, General and Administrative Expenses | Employee Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	109	86	24
Reserve adjustments	(11)	(10)	(31)
Selling, General and Administrative Expenses | Contract Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	5	2	6
Selling, General and Administrative Expenses | Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring charges			2
Research and Development Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges	64	14	3
Research and Development Expenses | Employee Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	13	15
Reserve adjustments	(2)	(3)	1
Research and Development Expenses | Contract Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	13		$ 2
Research and Development Expenses | Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 40	$ 2