FAIR VALUE MEASUREMENTS - Equity Securities and Investments (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jul. 31, 2026 |
Jul. 31, 2025 |
Jul. 31, 2026 |
Jul. 31, 2025 |
|
| Fair Value Disclosures [Abstract] | ||||
| Net gain (loss) on equity securities | $ (3) | $ (1) | $ (2) | $ (28) |
| Net gain (loss) on equity securities sold in the period | 0 | 0 | 0 | 0 |
| Unrealized gain (loss) on equity securities | (3) | (1) | (2) | (28) |
| Impairment of investments, Annual Amount | $ 0 | $ 0 | $ 0 | $ 15 |
| X | ||||||||||
- 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). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of realized gain (loss) from sale of 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
|
| 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
|
| X | ||||||||||
- Definition Amount of impairment loss on investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|