Cash Equivalents and Marketable Securities - Narrative (Details) $ in Millions |
3 Months Ended | 9 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
|
Oct. 26, 2025
USD ($)
|
Apr. 27, 2025
investment
|
Oct. 27, 2024
USD ($)
|
Oct. 26, 2025
USD ($)
|
Oct. 27, 2024
USD ($)
|
Jul. 27, 2025
USD ($)
|
Jan. 26, 2025
USD ($)
|
Jul. 28, 2024
USD ($)
|
Jan. 28, 2024
USD ($)
|
|
| Summary of cash equivalents and marketable securities: | |||||||||
| Number of investments reclassified | investment | 1 | ||||||||
| Fair value of non-marketable equity securities reclassified to marketable securities | $ 8,187 | $ 2,237 | $ 8,187 | $ 2,237 | $ 3,799 | $ 3,387 | $ 1,819 | $ 1,321 | |
| Net unrealized gains on investments in publicly held equity securities | 670 | $ 0 | 2,400 | $ 0 | |||||
| Debt securities in a continuous loss position of twelve months or greater | $ 337 | $ 337 | $ 213 | ||||||
| X | ||||||||||
- Definition Number Of Investments Reclassified No definition available.
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| X | ||||||||||
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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