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Income Taxes - Additional Information (Details) $ in Millions, € in Billions |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 30, 2016 EUR (€) Subsidiary | Sep. 28, 2024 USD ($) | Sep. 28, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 24, 2022 USD ($) | Sep. 28, 2024 EUR (€) | Sep. 25, 2021 USD ($)
Income Tax Contingency [Line Items] |  |  |  |  |  |  |
Adjusted recovery amount related to European Commission State Aid Decision |  | $ 26,601 | $ 26,601 | $ 8,819 |  |  |
State Aid escrow, marketable securities balance |  |  |  | 13,800 |  |  |
One-time income tax charge, net, State Aid Decision, portion payable to Ireland |  |  | 25,483 | 8,750 | $ 8,996 |  |
One-time income tax charge, net, State Aid Decision, U.S. foreign tax credit |  |  | (5,571) | (9,445) | (7,890) |  |
Decrease in unrecognized tax benefits, State Aid Decision |  |  | 1,070 | 19 | 28 |  |
Foreign pre-tax earnings |  |  | $ 77,300 | $ 72,900 | $ 71,300 |  |
U.S. statutory federal income tax rate |  |  | 21.00% | 21.00% | 21.00% |  |
Foreign tax credit carryforwards |  | 5,100 | $ 5,100 |  |  |  |
Research and development tax credit carryforwards |  | 3,600 | 3,600 |  |  |  |
Gross unrecognized tax benefits |  | 22,038 | 22,038 | $ 19,454 | $ 16,758 |  | $ 15,477
Gross unrecognized tax benefits that would impact effective tax rate, if recognized |  | 10,800 | 10,800 | $ 9,500 |  |  |
Minimum |  |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |  |
Reasonably possible decrease in gross unrecognized tax benefits over next 12 months |  | 5,000 | 5,000 |  |  |  |
Maximum |  |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |  |
Reasonably possible decrease in gross unrecognized tax benefits over next 12 months |  | 13,000 | 13,000 |  |  |  |
Unfavorable investigation outcome, EU State Aid rules |  |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |  |
Number of subsidiaries impacted by the European Commission tax ruling | Subsidiary | 2 |  |  |  |  |  |
Maximum potential loss related to European Commission State Aid Decision | € | € 13.1 |  |  |  |  |  |
Adjusted recovery amount related to European Commission State Aid Decision | € |  |  |  |  |  | € 12.7 |
State Aid escrow, total balance |  | 15,800 | 15,800 |  |  | 14.2 |
State Aid escrow, cash and cash equivalents balance |  | 2,600 | 2,600 |  |  |  |
State Aid escrow, marketable securities balance |  | 13,200 | $ 13,200 |  |  |  |
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 |  |  |  |  |
Unfavorable investigation outcome, EU State Aid rules - interest component |  |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |  |
Maximum potential loss related to European Commission State Aid Decision | € | € 1.2 |  |  |  |  |  |
Adjusted recovery amount related to European Commission State Aid Decision | € |  |  |  |  |  | € 1.2 |

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