GOODWILL AND INTANGIBLE ASSETS - Schedule of Goodwill (Details) - USD ($)	3 Months Ended	12 Months Ended
	Sep. 09, 2017	Feb. 23, 2019	Feb. 24, 2018	Feb. 25, 2017
Goodwill [Roll Forward]
Balance at beginning of year		$ 1,183,300,000	$ 1,167,800,000
Acquisitions and related adjustments		0	157,800,000
Impairment	$ (142,300,000)	0	(142,300,000)	$ 0
Balance at end of year		$ 1,183,300,000	$ 1,183,300,000	$ 1,167,800,000