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Financial Instruments and Fair Value Measurements - Narrative (Details) € in Millions, $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Mar. 29, 2025 EUR (€) | Mar. 29, 2025 USD ($) | Mar. 30, 2024 USD ($) | Sep. 28, 2024 USD ($) | Mar. 29, 2025 EUR (€)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Settlement of net investment hedges | $ |  | $ 22 | $ 0 |  |
Impairment charges | $ |  |  |  | $ 172 |
Fair value of long-term indebtedness greater/(less) than book value | $ |  | $ 77 |  |  |
Cross-currency swaps |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Settlement of net investment hedges | € | € 22 |  |  |  |
Cross-Currency Swap Maturing November 2027 |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Derivative notional amount | € |  |  |  |  | € 250
Cross-Currency Swap Maturing November 2029 |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Derivative notional amount | € |  |  |  |  | € 425

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