Accounts receivable, net - Rollforward of Allowance for Credit Losses (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 30, 2021	Oct. 31, 2020	Oct. 30, 2021	Oct. 31, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 0.0	$ 7.1	$ 25.5	$ 0.0
Provision for credit losses	(0.6)	7.5	(1.0)	14.6
Write-offs	0.0	0.0	(5.5)	0.0
Recoveries	0.6	0.0	0.6	0.0
Reversal of allowance on receivables sold	0.0	0.0	(19.6)	0.0
Balance at end of period	$ 0.0	$ 14.6	$ 0.0	$ 14.6