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Shareholders' equity - Schedule of Class of Treasury Stock (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		20 Months Ended
	Apr. 29, 2023	Apr. 30, 2022	Apr. 29, 2023
Class of Stock [Line Items]
Amount repurchased	$ 39.1	$ 268.2
2017 Program
Class of Stock [Line Items]
Shares repurchased (in shares)	0.5	4.3
Amount repurchased	$ 39.1	$ 318.2	$ 1,200.0
Average repurchase price per share (usd per share)	$ 74.95	$ 73.42
Accelerated Share Repurchase Agreement
Class of Stock [Line Items]
Amount repurchased		$ 50.0

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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