Income taxes - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
Jul. 29, 2023	Jul. 30, 2022
Income Tax Disclosure [Abstract]
Tax benefit due to reversal of foreign pension out of OCI	$ 4.1	$ 25.2
Excess tax benefit from share based compensation	$ 7.7	13.0
Discrete tax benefits related to litigation charges		$ 47.7

Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-12

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Section 35
-Paragraph 2
-SubTopic 740
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480887/718-740-35-2

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration