Composition of Certain Financial Statement Items Investment and Other (Expense) Income, Net (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Mar. 26, 2023 |
Mar. 27, 2022 |
Mar. 26, 2023 |
Mar. 27, 2022 |
|
| Investment Income, Net [Abstract] | ||||
| Interest and dividend income | $ 59 | $ 20 | $ 114 | $ 37 |
| Net gains (losses) on marketable securities | 9 | (240) | 20 | (223) |
| Net (losses) gains on other investments | 0 | (21) | 0 | 73 |
| Net gains (losses) on deferred compensation plan assets | 21 | (43) | 47 | (30) |
| Impairment losses on other investments | (87) | (20) | (101) | (21) |
| Other | (18) | 6 | (20) | 6 |
| Investment and other (expense) income, net | $ (16) | $ (298) | $ 60 | $ (158) |
| X | ||||||||||
- Definition Net (losses) gains on deferred compensation plan assets No definition available.
|
| X | ||||||||||
- Definition Amount of gain (loss) included in earnings for investments classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of realized gain (loss) on investment in marketable security, excluding other-than-temporary impairment (OTTI). No definition available.
|
| X | ||||||||||
- 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). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|