Summary of Major Components of Merger and Restructuring Expenses, Net (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Merger and transaction related expenses
Severance and retention		$ 1
Transaction and integration	$ 7	7
Total Merger and transaction related expenses	7	8
Restructuring expenses
Professional fees	6	3
Facility closure, contract termination, and other expenses, net	3	3
Total Restructuring expenses	9	6
Total Merger and restructuring expenses, net	$ 16	$ 14