Allowance for Doubtful Accounts (Details) - USD ($) $ in Millions	9 Months Ended
	Oct. 02, 2021	Sep. 26, 2020	Jan. 02, 2021
Schedule Of Financial Receivables [Line Items]
(Benefit) provision for doubtful accounts	$ (18)	$ 80
Allowances for vendor receivables	6		$ 5
SEC Schedule, 12-09, Allowance, Credit Loss
Schedule Of Financial Receivables [Line Items]
Allowance for doubtful accounts	67
(Benefit) provision for doubtful accounts	(18)
Customer accounts written off—net of recoveries	(10)
Allowance for doubtful accounts	$ 39