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Income taxes - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended
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Apr. 29, 2023 | Apr. 30, 2022
Income Tax Disclosure [Abstract] |  |
Tax benefit due to reversal of foreign pension out of OCI | $ 4.1 | $ 25.0
Excess tax benefit from share based compensation | $ 7.6 | 13.0
Discrete tax benefits related to litigation charges |  | $ 47.7

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- Definition Effective Income Tax Rate Reconciliation, Litigation Settlement, Amount + References No definition available. + Details
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- Definition Effective Income Tax Rate Reconciliation, Reversal of Foreign Pension Out of Other Comprehensive Income, Amount + References No definition available. + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 740 -Section 35 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126970579&loc=d3e23163-113944 + Details
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