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Income Taxes - Additional Information (Details) $ in Millions		3 Months Ended	12 Months Ended
	Aug. 30, 2016 Subsidiary	Sep. 28, 2024 USD ($)	Sep. 26, 2026 USD ($)	Sep. 27, 2025 USD ($)	Sep. 28, 2024 USD ($)	Sep. 30, 2023 USD ($)
Income Tax Contingency [Line Items]
One-time income tax charge, net, State Aid Decision, portion payable to Ireland			$ 12,625	$ 8,891	$ 25,483
One-time income tax charge, net, State Aid Decision, U.S. foreign tax credit			(11,307)	(11,487)	(5,571)
Decrease in unrecognized tax benefits, State Aid Decision			$ 264	$ 2,939	$ 1,070
Tax jurisdiction of domicile [Extensible Enumeration]			U.S.
U.S. statutory federal income tax rate			21.00%	21.00%	21.00%
Research and development tax credit carryforwards			$ 5,400
Foreign tax credit carryforwards			4,600
Gross unrecognized tax benefits		$ 22,038	22,487	$ 23,242	$ 22,038	$ 19,454
Gross unrecognized tax benefits that would impact effective tax rate, if recognized			10,600	10,600
Cash paid for income taxes, net			$ 34,588	$ 43,400	$ 26,100
Unfavorable investigation outcome, EU State Aid rules
Income Tax Contingency [Line Items]
Number of subsidiaries impacted by the European Commission tax ruling \| Subsidiary	2
One-time income tax charge, net, State Aid Decision		10,200
One-time income tax charge, net, State Aid Decision, portion payable to Ireland		15,800
One-time income tax charge, net, State Aid Decision, U.S. foreign tax credit		4,800
Decrease in unrecognized tax benefits, State Aid Decision		$ 823