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Debt - Summary (Details) € in Millions, $ in Millions	9 Months Ended
Debt - Summary (Details) € in Millions, $ in Millions	Jun. 24, 2022 USD ($)	Jun. 25, 2021 USD ($)	Jun. 24, 2022 EUR (€)	Jun. 24, 2022 USD ($)	Sep. 24, 2021 USD ($)
Debt
Fair value of debt				$ 4,134	$ 4,465
Repayment of debt	$ 558	$ 706
Short-term debt				822	503
Long-term debt				3,380	3,589
Commercial paper
Debt
Commercial paper				$ 237	$ 0
Weighted-average interest rate (as a percent)			1.92%	1.92%
2.50% senior notes due 2032
Debt
Debt instrument, interest rate (as a percent)			2.50%	2.50%
Debt instrument principal amount				$ 600
3.50% senior notes due 2022
Debt
Debt instrument, interest rate (as a percent)			3.50%	3.50%
Repayment of debt	$ 500
Reclassification
Debt
Debt instrument, interest rate (as a percent)			1.10%	1.10%
Short-term debt \| €			€ 550
Long-term debt \| €			€ (550)