BENEFIT PLANS - Additional Information (Details) $ in Millions	12 Months Ended
	Jul. 29, 2023 USD ($) employee	Jul. 30, 2022 USD ($)	Jul. 31, 2021 USD ($)
Retirement Benefits [Abstract]
Percentage of union employees that participate in multiemployer defined benefit pension plans under collective bargaining agreements (as a percent)	65.00%
Number of union employees | employee	10,667
Defined Benefit Plan Disclosure [Line Items]
Settlement charge (gain)			$ 12
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other long-term liabilities	Other long-term liabilities
Multiemployer pension plan, payment period (in years)	20 years
Other long-term liabilities
Defined Benefit Plan Disclosure [Line Items]
Multiemployer pension plan withdrawal liability	$ 73	$ 94
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	4
Pension and other postretirement benefit obligations	$ 4	$ 5
Supervalu Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Change in discount rate (as a percent)	0.81%	1.58%