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Financial Instruments and Fair Value Measurements (Details) € in Millions, $ in Millions	9 Months Ended
	Jun. 27, 2026 USD ($)	Jun. 27, 2026 EUR (€)	Jun. 28, 2025 USD ($)
Financial Instruments and Fair Value Measurements [Abstract]
Fair value of long-term indebtedness greater/(less) than book value \| $	$ (48)
Cross-Currency Swap Maturing November 2027 [Member]
Financial Instruments and Fair Value Measurements [Abstract]
Notional amount of swap (in Euro) \| €		€ 250
Cross-Currency Swap Maturing November 2029 [Member]
Financial Instruments and Fair Value Measurements [Abstract]
Notional amount of swap (in Euro) \| €		€ 425
Cross-currency Swap [Member]
Financial Instruments and Fair Value Measurements [Abstract]
Gain/(loss) on net investment hedges, net of tax \| $	$ (16)		$ 67