SHARE-BASED COMPENSATION (Allocation of period costs) (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jul. 31, 2026 |
Jul. 31, 2025 |
Jul. 31, 2026 |
Jul. 31, 2025 |
|
| Share-based Compensation Expense, Allocation of Recognized Period Costs [Line Items] | ||||
| Share-based Compensation Expense | $ 47 | $ 32 | $ 182 | $ 131 |
| Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold | ||||
| Share-based Compensation Expense, Allocation of Recognized Period Costs [Line Items] | ||||
| Share-based Compensation Expense | 8 | 8 | 37 | 28 |
| Income Statement Location [Axis]: us-gaap:ResearchAndDevelopmentExpense | ||||
| Share-based Compensation Expense, Allocation of Recognized Period Costs [Line Items] | ||||
| Share-based Compensation Expense | 13 | 9 | 49 | 34 |
| Income Statement Location [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense | ||||
| Share-based Compensation Expense, Allocation of Recognized Period Costs [Line Items] | ||||
| Share-based Compensation Expense | $ 26 | $ 15 | $ 96 | $ 69 |