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Cash, Cash Equivalents and Investments - Gain (Loss) on Equity Investments (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2023 | May 01, 2022 | Apr. 30, 2023 | May 01, 2022
Gain (Loss) on Securities [Line Items] |  |  |  |
Total gain (loss) on equity investments, net | $ (128) | $ 30 | $ (120) | $ 33
Publicly traded equity securities |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Unrealized gain | 1 | 17 | 19 | 18
Unrealized loss | (11) | (2) | (27) | (10)
Realized gain on sales | 1 | 0 | 1 | 2
Realized loss on sales and impairment | (1) | 0 | (2) | 0
Equity investments in privately-held companies |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Unrealized gain | 8 | 13 | 12 | 25
Unrealized loss | (9) | 0 | (11) | 0
Realized gain on sales | 0 | 2 | 5 | 2
Realized loss on sales and impairment | $ (117) | $ 0 | $ (117) | $ (4)

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- Definition Amount of unrealized and realized gain (loss) on 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 -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126980263&loc=SL75117546-209714 + Details
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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 -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126980263&loc=SL75117546-209714 + Details
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- Definition Amount of realized loss 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 -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126980263&loc=SL75117546-209714 + Details
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- Definition Amount of unrealized gain on 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/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126980263&loc=SL75117546-209714 + Details
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