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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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. 23, 2019	Feb. 24, 2018	Feb. 25, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Goodwill impairment	$ 142,300,000	$ 0	$ 142,300,000	$ 0
Asset impairment charges, excluding goodwill impairment		36,300,000	100,900,000	$ 46,600,000
Fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total debt amount		9,801,200,000	10,603,400,000
Carrying value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total debt amount		$ 10,086,300,000	$ 11,340,500,000