Goodwill and intangibles - Composition of Intangible Assets and Liabilities (Details) - USD ($) $ in Millions	Feb. 03, 2024	Jan. 28, 2023
Intangible assets, net:
Gross carrying amount	$ 11.2	$ 15.8
Accumulated amortization	(7.5)	(7.6)
Net carrying amount	3.7	8.2
Indefinite-lived intangible assets	399.1	399.2
Intangible assets, gross	410.3	415.0
Accumulated amortization	7.5	7.6
Total intangible assets, net	402.8	407.4
Intangible liabilities, net
Gross carrying amount	(38.0)	(38.0)
Accumulated amortization	34.4	32.6
Total	$ (3.6)	$ (5.4)

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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