Composition of Certain Financial Statement Items Other Assets (Details) - USD ($) $ in Millions |
Mar. 29, 2026 |
Sep. 28, 2025 |
|---|---|---|
| Long-Term Purchase Commitment [Line Items] | ||
| Advance payment related to multi-year capacity commitments | $ 782 | $ 1,900 |
| Other Current Assets | ||
| Long-Term Purchase Commitment [Line Items] | ||
| Advance payment related to multi-year capacity commitments | 469 | 1,500 |
| Other Assets | ||
| Long-Term Purchase Commitment [Line Items] | ||
| Advance payment related to multi-year capacity commitments | $ 313 | $ 357 |