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DESCRIPTION OF BUSINESS, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Self-Insurance Liabilities (Details) - USD ($)
$ in Millions
12 Months Ended
Feb. 27, 2021
Feb. 29, 2020
Movement in Present Value of Future Insurance Profits [Roll Forward]    
Beginning balance $ 1,147.4 $ 1,146.3
Expense 342.7 323.4
Claim payments (273.9) (295.6)
Other reductions (57.1) (26.7)
Ending balance 1,159.1 1,147.4
Less current portion (321.4) (308.9)
Long-term portion $ 837.7 $ 838.5