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FAIR VALUE MEASUREMENTS - Non marketable securities (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2023 | Oct. 31, 2022 | Oct. 31, 2021
Fair Value Disclosures [Abstract] |  |  |
Impairments in non-marketable securities without readily determinable fair value | $ 0 | $ 0 | $ 0
Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Annual Amount | 26 |  |
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount |  | 6 | $ 17
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount | 38 | 35 |
Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Cumulative Amount | 29 | 0 |
Equity investments - without readily determinable fair value | $ 102 | $ 141 |

X
- Definition Amount of investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479536/321-10-50-3 + Details
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- Definition Amount of loss from downward price adjustment on investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479536/321-10-50-3 + Details
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- Definition Amount of gain from upward price adjustment on investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479536/321-10-50-3 + Details
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