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Debt - Summary (Details) € in Millions, $ in Millions	9 Months Ended
Debt - Summary (Details) € in Millions, $ in Millions	Jun. 27, 2025 USD ($)	Jun. 27, 2025 EUR (€)	Jun. 28, 2024 USD ($)	Jun. 27, 2025 EUR (€)	Sep. 27, 2024 USD ($)
Debt
Repayment of debt	$ 580		$ 2
Short-term debt	851				$ 871
Long-term debt	4,846				3,332
Commercial paper
Debt
Commercial paper	$ 0				$ 255
Weighted-average interest rate (as a percent)					4.95%
0.00% euro-denominated senior notes due 2025
Debt
Repayment of debt \| €		€ 550
Debt instrument, interest rate (as a percent)	0.00%			0.00%
2.50% senior notes due 2028
Debt
Debt instrument principal amount \| €				€ 500
Debt instrument, interest rate (as a percent)	2.50%			2.50%
4.50% senior notes due 2031
Debt
Debt instrument principal amount	$ 450
Debt instrument, interest rate (as a percent)	4.50%			4.50%
3.25% Senior Notes due 2033
Debt
Debt instrument principal amount \| €				€ 750
Debt instrument, interest rate (as a percent)	3.25%			3.25%
5.00% senior notes due 2035
Debt
Debt instrument principal amount	$ 450
Debt instrument, interest rate (as a percent)	5.00%			5.00%
Reclassification \| 4.50% senior notes due 2026
Debt
Short-term debt	$ 500
Long-term debt	$ (500)
Debt instrument, interest rate (as a percent)	4.50%			4.50%
Reclassification \| 3.70% senior notes due 2026
Debt
Short-term debt	$ 350
Long-term debt	$ (350)
Debt instrument, interest rate (as a percent)	3.70%			3.70%