DESCRIPTION OF BUSINESS, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property and Equipment, Intangible Assets and Cloud Computing Arrangements (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 27, 2021	Feb. 29, 2020
Property, Plant and Equipment [Line Items]
Capitalized implementation costs	$ 107.0	$ 48.1
Amortization expense for implementation costs	$ 15.2	$ 0.6
Minimum
Property, Plant and Equipment [Line Items]
Estimated economic life (in years)	3 years
Maximum
Property, Plant and Equipment [Line Items]
Estimated economic life (in years)	40 years
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	7 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	40 years
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	10 years
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	20 years
Fixtures and equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	3 years
Fixtures and equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	20 years
Equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	6 years
Equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	25 years