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Accounts receivable, net - Rollforward of Allowance for Credit Losses (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2021	Aug. 01, 2020	Jul. 31, 2021	Aug. 01, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 21.4	$ 0.0	$ 25.5	$ 0.0
Provision for credit losses	0.8	7.1	(0.4)	7.1
Write-offs	(2.6)	0.0	(5.5)	0.0
Reversal of allowance on receivables sold	(19.6)	0.0	(19.6)	0.0
Balance at end of period	$ 0.0	$ 7.1	$ 0.0	$ 7.1

X

- Definition

Financing Receivable, Allowance for Credit Losses, Reversal

+ References

No definition available.

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- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

+ References

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of writeoff of financing receivable, charged against allowance for credit loss.

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Amount of credit loss expense (reversal of expense) for financing receivable.

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