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Goodwill and intangibles - Schedule of Goodwill (Details) $ in Millions	6 Months Ended
	Aug. 03, 2024 USD ($)	Feb. 03, 2024 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 754.5
Impairment	(123.0)
Ending balance	631.5
North America
Goodwill [Roll Forward]
Beginning balance	754.5
Impairment	(123.0)
Ending balance	631.5
Accumulated impairment loss	$ 699.0	$ 576.0

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