Summary of significant accounting policies - Supplier Finance Program (Details) - USD ($) $ in Millions |
12 Months Ended | |
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Dec. 28, 2025 |
Dec. 29, 2024 |
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| Supplier Finance Program, Obligation [Roll Forward] | ||
| Confirmed obligations - beginning of the year | $ 788 | $ 704 |
| Invoices confirmed during the year | 2,997 | 3,048 |
| Confirmed invoices paid during the year | 3,016 | 2,964 |
| Effect of exchange rates | 15 | 0 |
| Confirmed obligations - end of the year | $ 784 | $ 788 |
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- Definition Supplier Finance Program, Obligation, Effect Of Exchange Rates No definition available.
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- Definition Amount of obligation for supplier finance program, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of decrease in obligation for supplier finance program from settlement. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of increase in obligation for supplier finance program. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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