Retirement Plans Contributions to Multiemployer Pension Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Multiemployer Plans [Line Items]
Multiemployer Plan, Employer Contribution, Cost	$ 47	$ 43	$ 44
Multiemployer plans, withdrawal liability	$ 119
Multiemployer Plan, Pension, Insignificant, Employer Contribution under Collective-Bargaining Arrangement to Total Employer Contribution, Percentage	5.00%
Minneapolis Food Distributing Industry Pension Plan
Multiemployer Plans [Line Items]
Multiemployer Plan, Employer Contribution, Cost	$ 6	5	5
Teamster Pension Trust Fund of Philadelphia and Vicinity
Multiemployer Plans [Line Items]
Multiemployer Plan, Employer Contribution, Cost	5	4	4
Local 703 I.B. of T. Grocery and Food Employees’ Pension Plan
Multiemployer Plans [Line Items]
Multiemployer Plan, Employer Contribution, Cost	3	4	2
United Teamsters Trust Fund A
Multiemployer Plans [Line Items]
Multiemployer Plan, Employer Contribution, Cost	1	1	1
Warehouse Employees Local 169 and Employers Joint Pension Fund
Multiemployer Plans [Line Items]
Multiemployer Plan, Employer Contribution, Cost	1	1	1
UFCW National Pension Fund
Multiemployer Plans [Line Items]
Multiemployer Plan, Employer Contribution, Cost	0	1	1
Other funds
Multiemployer Plans [Line Items]
Multiemployer Plan, Employer Contribution, Cost	$ 31	$ 27	$ 30
Minimum
Multiemployer Plans [Line Items]
Multiemployer Plan, Pension, Insignificant, Employer Contribution under Collective-Bargaining Arrangement to Total Employer Contribution, Percentage	5.00%