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PROPERTY AND EQUIPMENT - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Feb. 27, 2021
Feb. 29, 2020
Feb. 23, 2019
Property, Plant and Equipment [Abstract]      
Depreciation expense $ 1,297.7 $ 1,244.7 $ 1,257.7
Amortization of lease assets 67.4 90.4 101.4
Asset impairment charges $ 8.0 $ 21.8 $ 31.0