Asset Impairment Charges, Excluding Goodwill

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- Definition

Effective Income Tax Rate Reconciliation, Change In Reporting Entity, Amount

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- Definition

Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act of 2017, Amount

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- Definition

Gain (Loss) On Property Dispositions, Asset Impairment and Exit Costs

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No definition available.

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- Definition

Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Change in Tax Rate, Provisional Income Tax Expense (Benefit)

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No definition available.

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- Definition

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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- Definition

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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QUARTERLY INFORMATION (unaudited) - Narrative (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended			12 Months Ended
	Dec. 01, 2018	Sep. 08, 2018	Dec. 02, 2017	Sep. 09, 2017	Nov. 30, 2019	Dec. 01, 2018	Dec. 02, 2017	Feb. 23, 2019	Feb. 24, 2018	Feb. 25, 2017
Quarterly Financial Information Disclosure [Abstract]
Provisional tax benefit as a result of the Tax Act	$ 60.3
Net (gain) loss on property dispositions, asset impairment and lease exit costs		$ 135.8			$ 482.7	$ 163.7		$ 165.0	$ (66.7)	$ 39.2
Goodwill impairment				$ 142.3				0.0	142.3
Asset impairment charges, excluding goodwill impairment									100.9
Increase (decrease) in valuation allowance			$ (359.0)				$ 141.0
Change in valuation allowance								(3.3)	(218.0)	107.1
Non-cash income tax benefit as a result of lower corporate income tax rate								(56.9)	(430.4)	0.0
Increase in deferred tax liabilities due to change in reporting entity								$ 0.0	$ 46.7	$ 0.0