BENEFIT PLANS - Schedule of Collective Bargaining Agreement Dates and Contributions To Each Plan Table (Details)	12 Months Ended
	Aug. 03, 2019 agreement
Minneapolis Food Distributing Industry Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	1
% of Associates under Collective Bargaining Agreement	100.00%
Minneapolis Retail Meat Cutters And Food Handlers Pension Fund
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	1
% of Associates under Collective Bargaining Agreement	100.00%
Minneapolis Retail Meat Cutters And Food Handlers Variable Annuity Pension Fund
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	1
% of Associates under Collective Bargaining Agreement	100.00%
Central States, Southeast and Southwest Areas Pension Fund
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	4
% of Associates under Collective Bargaining Agreement	39.40%
Ufcw Unions And Participating Employers Pension Fund
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	2
% of Associates under Collective Bargaining Agreement	71.30%
Western Conference Of Teamsters Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	20
% of Associates under Collective Bargaining Agreement	15.60%
Ufcw Unions And Employers Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	1
% of Associates under Collective Bargaining Agreement	100.00%