COMMITMENTS, CONTINGENCIES AND OFF-BALANCE SHEET ARRANGEMENTS (Details) $ in Millions	12 Months Ended
	Aug. 01, 2020 USD ($) lawsuit case
Loss Contingencies [Line Items]
Purchase obligation	$ 181.0
Schutte and Yarberry v. Supervalu, New Albertson's, Inc., et al
Loss Contingencies [Line Items]
Alleged damages (in excess of)	100.0
Share of potential award	24.0
Payment Guarantee
Loss Contingencies [Line Items]
Guarantor obligations, maximum exposure, undiscounted	32.3
Guarantor obligations, maximum exposure, discounted	$ 26.9
Payment Guarantee | Minimum
Loss Contingencies [Line Items]
Guarantor obligations, guarantees term	1 year
Payment Guarantee | Maximum
Loss Contingencies [Line Items]
Guarantor obligations, guarantees term	10 years
Payment Guarantee | Weighted Average
Loss Contingencies [Line Items]
Guarantor obligations, guarantees term	6 years
Moran Foods, LLC
Loss Contingencies [Line Items]
Professional services agreement term	5 years
Professional services agreement, base amount	$ 30.0
Advantage Logistics | National Opioid Epidemic
Loss Contingencies [Line Items]
Number of suits pending | lawsuit	38
Number of cases consolidated | case	1,800