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BENEFIT PLANS BENEFIT PLANS (Details) - USD ($)
$ in Thousands
3 Months Ended
Nov. 04, 2019
Feb. 01, 2020
Nov. 02, 2019
Oct. 27, 2018
Minimum        
Defined Benefit Plan Disclosure [Line Items]        
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year     $ 0  
Maximum        
Defined Benefit Plan Disclosure [Line Items]        
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year     6,000  
Multiemployer Plans, Postretirement Benefit        
Defined Benefit Plan Disclosure [Line Items]        
Multiemployer Plan, Contributions by Employer     13,500 $ 100
Subsequent Event | Supervalu Retirement Plan        
Defined Benefit Plan Disclosure [Line Items]        
Lump sum settlement payments $ 664,000      
Estimated non-cash pension settlement charge   $ 10,000    
Unified Grocers, Inc. Cash Balance Plan        
Defined Benefit Plan Disclosure [Line Items]        
Multiemployer Plans, Minimum Contribution     $ 8,250