Composition of Certain Financial Statement Items Investment and Other Income (Expense), Net (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Jun. 29, 2025	Jun. 23, 2024	Jun. 29, 2025	Jun. 23, 2024
Investment Income, Net [Abstract]
Interest and dividend income	$ 160	$ 182	$ 495	$ 490
Net gains on marketable securities	204	8	241	16
Net gains on other investments	5	10	30	170
Net gains on deferred compensation plan assets	84	26	65	153
Impairment losses on other investments	(52)	(5)	(93)	(66)
Other	(43)	5	10	5
Investment and other income, net	$ 358	$ 226	$ 748	$ 768

Impairment losses on other investments without readily determinable fair value

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- Definition

Net (losses) gains on deferred compensation plan assets

+ References

No definition available.

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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

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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

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- References

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- Definition

Amount of realized gain (loss) on investment in marketable security.

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No definition available.

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- Definition

The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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Amount of income (expense) related to nonoperating activities, classified as other.

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