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Cash, Cash Equivalents and Investments - Gain (Loss) on Equity Investments (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 26, 2025 | Oct. 27, 2024 | Oct. 29, 2023
Publicly traded equity securities |  |  |
Unrealized gain | $ 887 | $ 332 | $ 193
Unrealized loss | (139) | (287) | (44)
Realized gain on sales and dividends | 91 | 5 | 9
Realized loss on sales or impairment | 0 | (1) | (4)
Equity investments in privately held companies |  |  |
Unrealized gain | 20 | 3 | 15
Unrealized loss | (13) | (17) | (30)
Realized gain on sales and dividends | 10 | 4 | 9
Realized loss on sales or impairment | (35) | (19) | (121)
Total gain (loss) on equity investments, net | $ 821 | $ 20 | $ 27

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- Definition Amount of realized gain from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479536/321-10-50-4 + Details
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