Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Name:	us-gaap_GoodwillImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($)	Sep. 09, 2017	Feb. 29, 2020	Feb. 23, 2019	Feb. 24, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Goodwill impairment	$ 142,300,000	$ 0	$ 0	$ 142,300,000
Asset impairment charges, excluding goodwill impairment		77,400,000	36,300,000	$ 100,900,000
Fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total debt amount		8,486,200,000	9,801,200,000
Carrying value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total debt amount		$ 8,162,200,000	$ 10,086,300,000