DESCRIPTION OF BUSINESS, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Inventories (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 25, 2023	Feb. 26, 2022	Feb. 27, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Percentage of LIFO inventory	85.10%	83.70%
Inventory, LIFO reserve	$ 585.4	$ 317.4
Decrease in cost of sales	$ 0.5	$ 11.3	$ 11.8