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Goodwill and intangibles - Schedule of Goodwill (Details) - USD ($) $ in Millions	9 Months Ended
	Oct. 28, 2023	Jan. 28, 2023
Goodwill [Roll Forward]
Beginning balance	$ 751.7
Ending balance	754.5
North America
Goodwill [Roll Forward]
Beginning balance	751.7
Acquisitions	2.8
Ending balance	754.5
Accumulated impairment loss	$ 576.0	$ 576.0

X

- Definition

Amount after accumulated impairment loss of an asset representing 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 increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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