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Fair Value Measurements Nonrecurring (Details) - USD ($) $ in Millions	3 Months Ended
	May 30, 2020	Feb. 27, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Indefinite-lived intangibles	$ 92.8	$ 97.1
Right-of-use assets	193.9	$ 222.9
Goodwill, Impairment Loss	125.5
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Indefinite-lived intangibles	92.8
Fair Value, Inputs, Level 3 [Member] | Design Within Reach [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Right-of-use assets	$ 110.9

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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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Amount of lessee's right to use underlying asset under operating lease.

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