LONG-TERM DEBT - Schedule of Interest Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 23, 2019	Feb. 24, 2018	Feb. 25, 2017
Debt Disclosure [Abstract]
ABL Facility, senior secured and unsecured notes, term loans and debentures	$ 698.3	$ 701.5	$ 764.3
Capital lease obligations	81.8	96.3	106.8
Amortization and write off of deferred financing costs	42.7	56.1	84.4
Amortization and write off of debt discounts	20.3	16.0	22.3
Other interest (income) expense	(12.3)	4.9	26.0
Interest expense, net	$ 830.8	$ 874.8	$ 1,003.8