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INVESTMENTS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2023 | Oct. 31, 2022 | Oct. 31, 2021
Long-Term [Abstract] |  |  |
Equity investments - without readily determinable fair value | $ 102 | $ 141 |
Other investments - with readily determinable fair value | 26 | 23 |
Trading securities | 36 | 31 |
Long-term investments | 164 | 195 |
Amounts included in other income (expense), net [Abstract] |  |  |
Net gain (loss) on equity securities | (41) | (67) | $ 98
Net gain (loss) on equity securities sold during the period | (15) | 11 | 6
Unrealized gain (loss) on equity securities | (26) | (78) | 92
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount |  | 6 | 17
Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Annual Amount | 26 |  |
Trading, Unrealized Gain (Loss) | 2 | (7) | 8
Other than Temporary Impairment Losses, Investments | $ 0 | $ 0 | $ 0

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- Definition Amount of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in net income (trading). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-14 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-9 + Details
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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/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(3)(d)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483586/944-220-S99-1 Reference 2: 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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