Accrued Expenses and Other Long-Term Liabilities Summary of Self-Insurance Liability (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Movement in Self Insurance Reserve [Roll Forward]
Balance as of beginning of the year	$ 165	$ 159	$ 170
Charged to costs and expenses	83	80	56
Acquisitions	3	17	0
Reinsurance recoverable	2	0	7
Payments	(78)	(91)	(74)
Balance as of end of the year	$ 175	$ 165	$ 159
Discount rate	0.15%	1.58%	2.50%