Shareholders' equity - Narrative (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 29, 2025 |
Jun. 30, 2026 |
Jun. 29, 2025 |
Dec. 09, 2025 |
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| Accumulated Other Comprehensive Income (Loss) [Line Items] | |||||
| Antidilutive shares which were not included in the calculation of earnings per share (in shares) | 1.3 | 1.5 | 1.3 | 1.3 | |
| Share repurchase program, authorized amount | $ 1,000.0 | ||||
| Share repurchase program, remaining authorized, amount | $ 750.0 | $ 750.0 | |||
| Common Stock | |||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | |||||
| Share repurchase program, authorized amount | $ 250.0 | $ 250.0 | |||
| Share repurchase program, authorized, number of shares (in shares) | 1.9 | 1.9 | |||
| Shares acquired, average cost per share (in dollars per share) | $ 130.85 | ||||
| X | ||||||||||
- Definition Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Number of shares authorized to be purchased under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount remaining authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Total cost of shares repurchased divided by the total number of shares repurchased. No definition available.
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| X | ||||||||||
- Details
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