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DESCRIPTION OF BUSINESS, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Cash and Cash Equivalents (Details) - USD ($)
$ in Millions
Feb. 23, 2019
Feb. 24, 2018
Feb. 25, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Cash and cash equivalents related to credit and debit card $ 364.5 $ 315.8  
Restricted cash $ 41.6 $ 10.5 $ 9.9