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Acquisitions (Details) SFr / shares in Units, SFr in Millions, $ in Millions | 3 Months Ended
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Dec. 27, 2024 USD ($) item | Dec. 29, 2023 USD ($) | Dec. 29, 2023 CHF (SFr) SFr / shares
Acquisitions |  |  |
Net cash paid | $ 325 | $ 349 |
Fiscal 2025 Acquisitions |  |  |
Acquisitions |  |  |
Number of businesses acquired | item | 2 |  |
Net cash paid | $ 325 |  |
Schaffner Holding AG |  |  |
Acquisitions |  |  |
Net cash paid |  | $ 349 | SFr 302
Percentage of voting interest acquired |  |  | 98.70%
Per share value of the purchase (in dollars per share) | SFr / shares |  |  | SFr 505

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