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Composition of Certain Financial Statement Items Investment and Other Income (Expense), Net (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 28, 2026 | Jun. 29, 2025 | Jun. 28, 2026 | Jun. 29, 2025
Investment Income, Net [Abstract] |  |  |  |  |
Interest and dividend income |  | $ 97 | $ 160 | $ 347 | $ 495
Net gains on marketable securities (1) | [1] | 726 | 204 | 605 | 241
Net gains on other investments |  | 19 | 5 | 237 | 30
Net gains on deferred compensation plan assets |  | 149 | 84 | 135 | 65
Impairment losses on other investments |  | (38) | (52) | (61) | (93)
Equity in net earnings of investees |  | 66 | (4) | 149 | 13
Other |  | (5) | (39) | 46 | (3)
Investment and other income, net |  | $ 1,014 | $ 358 | $ 1,458 | $ 748
[1] | Primarily consist of net unrealized gains related to certain marketable equity securities.

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