Allowance for Doubtful Accounts (Details) - USD ($) $ in Millions	6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jan. 02, 2021
Schedule Of Financial Receivables [Line Items]
(Benefit) provision for doubtful accounts	$ (13)	$ 106
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	(13)
Customer accounts written off—net of recoveries	(9)
Allowance for doubtful accounts	$ 45