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Composition of Certain Financial Statement Items Investment and Other Income, Net (Details) - USD ($) $ in Millions | 12 Months Ended
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Sep. 29, 2024 | Sep. 24, 2023 | Sep. 25, 2022
Investment Income, Net [Abstract] |  |  |
Interest and dividend income | $ 675 | $ 313 | $ 91
Net gains (losses) on marketable securities | 14 | 75 | (363)
Net gains on other investments | 175 | 21 | 113
Net gains (losses) on deferred compensation plan assets | 198 | 86 | (141)
Impairment losses on other investments | (79) | (132) | (47)
Other | (21) | (14) | (25)
Investment and other income (expense), net | $ 962 | $ 349 | $ (372)

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- Definition Net (losses) gains on deferred compensation plan assets + References No definition available. + Details
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- Definition Amount of gain (loss) included in earnings for investments classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
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- Definition The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 8A -Publisher FASB -URI https://asc.fasb.org/1943274/2147481830/320-10-45-8A + Details
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- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
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