Summary of Restructuring Charges (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	$ 4	$ (1)
Employee Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	15	12
Reserve Adjustments
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	(11)	(19)
Asset Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net		4
Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net		2
Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	12	(7)
Cost of Sales | Employee Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	13	1
Cost of Sales | Reserve Adjustments
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	(1)	(13)
Cost of Sales | Asset Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net		3
Cost of Sales | Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net		2
Marketing and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	(7)	6
Marketing and Administrative Expenses | Employee Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	1	11
Marketing and Administrative Expenses | Reserve Adjustments
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	(8)	(6)
Marketing and Administrative Expenses | Asset Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net		$ 1
Research and Development Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	(1)
Research and Development Expenses | Employee Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	1
Research and Development Expenses | Reserve Adjustments
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	$ (2)