BENEFIT PLANS - Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plant (Details)	9 Months Ended
	Apr. 27, 2019 agreement
Minneapolis Food Distributing Industry Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	1	[1]
Multiemployer Plans, Collective-Bargaining Arrangement, Expiration Date	May 31, 2022	[1]
Percentage of associates under collective bargaining agreement	100.00%	[1],[2]
Over Five Percent Contribution	Yes
Minneapolis Retail Meat Cutters And Food Handlers Pension Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	1	[3]
Multiemployer Plans, Collective-Bargaining Arrangement, Expiration Date	Mar. 04, 2023	[3]
Percentage of associates under collective bargaining agreement	100.00%	[2],[3]
Over Five Percent Contribution	Yes
Minneapolis Retail Meat Cutters And Food Handlers Variable Annuity Pension Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	1	[3]
Multiemployer Plans, Collective-Bargaining Arrangement, Expiration Date	Mar. 04, 2023	[3]
Percentage of associates under collective bargaining agreement	100.00%	[2],[3]
Over Five Percent Contribution	N/A (contrib. began 1/1/2019)
Central States, Southeast and Southwest Areas Pension Fund(2)
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	4	[1],[3]
Multiemployer Plans, Collective-Bargaining Arrangement, Expiration Date	Sep. 14, 2019	[1],[3]
Percentage of associates under collective bargaining agreement	42.00%	[1],[2]
Over Five Percent Contribution	No
UFCW Unions and Participating Employers Pension Fund
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	2	[3]
Multiemployer Plans, Collective-Bargaining Arrangement, Expiration Date	Jul. 11, 2020	[3]
Percentage of associates under collective bargaining agreement	71.70%	[2],[3]
Over Five Percent Contribution	Yes
Western Conference of Teamsters Pension Trust(2)
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	21	[1]
Multiemployer Plans, Collective-Bargaining Arrangement, Expiration Date	Jul. 17, 2021	[1]
Percentage of associates under collective bargaining agreement	15.80%	[1],[2]
Over Five Percent Contribution	No
UFCW Unions and Employers Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	1	[3]
Multiemployer Plans, Collective-Bargaining Arrangement, Expiration Date	Apr. 09, 2022	[3]
Percentage of associates under collective bargaining agreement	100.00%	[2],[3]
Over Five Percent Contribution	Yes

[1] These multiemployer pension plans are associated with continuing operations.

[2] Company participating employees in the most significant collective bargaining agreement as a percent of all Company employees participating in the respective fund.

[3] These multiemployer pension plans are associated with discontinued operations.