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DESCRIPTION OF BUSINESS, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Investment in Unconsolidated Affiliates (Details)
$ / shares in Units, $ in Millions, $ in Billions
3 Months Ended 12 Months Ended
Nov. 16, 2017
USD ($)
Dec. 02, 2017
USD ($)
$ / shares
Feb. 29, 2020
USD ($)
Feb. 23, 2019
USD ($)
Feb. 24, 2018
USD ($)
Feb. 24, 2018
MXN ($)
Schedule of Equity Method Investments [Line Items]            
Payment of Casa Ley contingent value right     $ 0.0 $ 0.0 $ 222.0  
Casa Ley | Contingent consideration            
Schedule of Equity Method Investments [Line Items]            
Payment of Casa Ley contingent value right   $ 222.0        
Distribution made in cash per Casa Ley CVR (in dollars per share) | $ / shares   $ 0.934        
Held-for-sale | Casa Ley            
Schedule of Equity Method Investments [Line Items]            
Amount of consideration to be received or receivable in asset disposal         $ 348.4 $ 6.5
Loss on disposal of equity method investment   $ 25.0        
El Rancho Supermercado            
Schedule of Equity Method Investments [Line Items]            
Payment to acquire businesses $ 100.0          
Total purchase consideration 70.0          
Amount of equity interest issued or issuable in a business combination $ 30.0          
Percentage of equity interest acquired 45.00%          
Remaining equity interest under contractual right to purchase, percent 55.00%