Leases - Operating Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Sep. 26, 2020	Oct. 02, 2021	Sep. 26, 2020
Lease expense:
Operating lease cost	$ 34	$ 34	$ 101	$ 101
Finance lease cost
Amortization of right-of-use assets	2	3	8	9
Interest on lease liabilities	0	0	0	1
Total finance lease cost	2	3	8	10
Short-term lease cost	0	1	2	2
Variable cost	9	10	27	27
Sublease income	(2)	(2)	(4)	(4)
Net lease expense	$ 43	$ 46	$ 134	$ 136