Accrued Expenses and Other Long-Term Liabilities Summary of Self-Insurance Liability (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Movement in Self Insurance Reserve [Roll Forward]
Balance as of beginning of the year	$ 159	$ 170	$ 164
Charged to costs and expenses	80	56	64
Acquisitions	17	0	0
Reinsurance recoverable	0	7	8
Payments	(91)	(74)	(66)
Balance as of end of the year	$ 165	$ 159	$ 170
Discount rate	1.58%	2.50%	1.98%