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FAIR VALUE MEASUREMENTS, Assets and Liabilities measured at Fair Value on a Non-Recurring Basis (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Apr. 30, 2025 | Apr. 30, 2024 | Apr. 30, 2025 | Apr. 30, 2024
Long-Lived Assets |  |  |  |
Carrying value of impaired long-lived assets held for use |  | $ 8 |  | $ 8
Fair value of impaired long-lived assets held for use |  | 0 |  | 0
Impairment of Long-Lived Assets Held-for-use | $ 0 | 0 | $ 0 | 8
Impairment of Long-Lived assets Held for sale | $ 0 | $ 0 | $ 0 | $ 0

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