Costs Associated with Exit and Restructuring Activities - Summary of Exit and Restructuring Costs Incurred (Detail) - The Acquisition - USD ($) $ in Millions	9 Months Ended	14 Months Ended	23 Months Ended
	Oct. 01, 2016	Dec. 31, 2015	Sep. 30, 2016
Restructuring Cost and Reserve [Line Items]
Severance, stay bonus, and other employee-related expenses	$ 14	$ 37	$ 51
Obligations for future non-cancellable lease payments	3	9	12
Total	$ 17	$ 46	$ 63