BENEFIT PLANS - Additional Information (Details) $ in Millions	3 Months Ended	12 Months Ended
	Feb. 01, 2020 USD ($)	Jul. 30, 2022 USD ($) employee	Jul. 31, 2021 USD ($)
Retirement Benefits [Abstract]
Percentage of union employees that participate in multiemployer defined benefit pension plans under collective bargaining agreements		65.00%
Defined Benefit Plan Disclosure [Line Items]
Number of union employees | employee		10,900
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]		Other long-term liabilities	Other long-term liabilities
Multiemployer pension plan withdrawal liability			$ 11
Multiemployer pension plan, payment period		20 years
Other long-term liabilities
Defined Benefit Plan Disclosure [Line Items]
Multiemployer pension plan withdrawal liability		$ 94	110
Accrued Liabilities
Defined Benefit Plan Disclosure [Line Items]
Multiemployer pension plan withdrawal liability		7	7
Postemployment Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Accrued compensation and benefits		4	2
Pension and other postretirement benefit obligations		$ 5	$ 5
Supervalu Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Settlement charge (gain)	$ (2)
Supervalu Retirement Plan | Measurement Input, Discount Rate
Defined Benefit Plan Disclosure [Line Items]
Measurement input (as a percent)	0.031