Summary of Major Components of Merger and Restructuring Expenses, Net (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 27, 2021	Mar. 28, 2020
Merger and transaction related expenses
Transaction and integration	$ 1	$ 7
Total Merger and transaction related expenses	1	7
Restructuring expenses
Severance	1
Professional fees	1	6
Facility closure, contract termination, and other expenses, net	9	3
Total Restructuring expenses	11	9
Other operating expenses
Professional fees	2
Total Other operating expenses	2
Total Merger, restructuring and other operating expenses, net	$ 14	$ 16