LONG-TERM DEBT AND FINANCE LEASE OBLIGATIONS - Schedule of Interest Expense (Details) - USD ($) $ in Millions	12 Months Ended
Feb. 29, 2020	Feb. 23, 2019	Feb. 24, 2018
Debt Disclosure [Abstract]
ABL Facility, senior secured and unsecured notes, term loans and debentures	$ 565.3	$ 698.3	$ 701.5
Finance lease obligations	79.8	81.8	96.3
Deferred financing costs	39.8	42.7	56.1
Debt discounts	34.1	20.3	16.0
Other interest (income) expense	(21.0)	(12.3)	4.9
Interest expense, net	$ 698.0	$ 830.8	$ 874.8

Interest Expense (Income), Other

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Amount of amortization expense attributable to debt issuance costs.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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The amount, during the lease term, of each minimum [capital] lease payment allocated to interest expense so as to produce a constant periodic rate of interest on the remaining balance of the capital lease obligation.

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The net amount of operating interest income (expense).

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