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Stockholders' Deficit (Tables) | 9 Months Ended
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Jul. 31, 2025
Stockholders' Equity Note [Abstract] |
Schedule of Changes and Reclassifications Related to Other Comprehensive (Loss) Income, Net of Taxes | Changes and reclassifications related to Accumulated Other Comprehensive Loss, net of taxes
| Three months ended July 31 |  | Nine months ended July 31 |  |
| 2025 |  | 2024 |  | 2025 |  | 2024 |  |  |  |
| In millions
Other comprehensive income (loss), net of taxes: |  |  |  |  |  |  |  |  |  |  |
Unrealized components of available-for-sale debt securities |  |  |  |  |  |  |  |  |  |  |
Balance at the beginning of period | $ | 20 |  |  | $ | 11 |  |  | $ | 14 |  |  | $ | 7 |  |  |  |  |
Unrealized gains arising during the period | 5 |  |  | 3 |  |  | 11 |  |  | 7 |  |  |  |  |
Tax effects on change in unrealized components of available-for-sale securities | (1) |  |  | (1) |  |  | (1) |  |  | (1) |  |  |  |  |
Unrealized components of available-for-sale debt securities, net of taxes | 4 |  |  | 2 |  |  | 10 |  |  | 6 |  |  |  |  |
Balance at the end of period | $ | 24 |  |  | $ | 13 |  |  | $ | 24 |  |  | $ | 13 |  |  |  |  |
Unrealized components of cash flow hedges |  |  |  |  |  |  |  |  |  |  |
Balance at the beginning of period | $ | (393) |  |  | $ | 89 |  |  | $ | 47 |  |  | $ | 230 |  |  |  |  |
Unrealized gains (losses) arising during the period | 59 |  |  | (36) |  |  | (301) |  |  | (47) |  |  |  |  |
Losses (gains) reclassified into earnings | 202 |  |  | (87) |  |  | 11 |  |  | (251) |  |  |  |  |
Tax effects on change in unrealized components of cash flow hedges | (61) |  |  | 27 |  |  | 50 |  |  | 61 |  |  |  |  |
Unrealized components of cash flow hedges, net of taxes | 200 |  |  | (96) |  |  | (240) |  |  | (237) |  |  |  |  |
Balance at the end of period | $ | (193) |  |  | $ | (7) |  |  | $ | (193) |  |  | $ | (7) |  |  |  |  |
Unrealized components of defined benefit plans |  |  |  |  |  |  |  |  |  |  |
Balance at the beginning of period | $ | (488) |  |  | $ | (423) |  |  | $ | (496) |  |  | $ | (437) |  |  |  |  |
Unrealized (losses) gains arising during the period | (7) |  |  | — |  |  | (8) |  |  | 13 |  |  |  |  |
Amortization of actuarial loss and prior service benefit | 5 |  |  | 1 |  |  | 15 |  |  | 5 |  |  |  |  |
Curtailments, settlements and other | 2 |  |  | 1 |  |  | 2 |  |  | 2 |  |  |  |  |
Tax effects on change in unrealized components of defined benefit plans | — |  |  | (2) |  |  | (1) |  |  | (6) |  |  |  |  |
Unrealized components of defined benefit plans, net of taxes | — |  |  | — |  |  | 8 |  |  | 14 |  |  |  |  |
Balance at the end of period | $ | (488) |  |  | $ | (423) |  |  | $ | (488) |  |  | $ | (423) |  |  |  |  |
Cumulative translation adjustment |  |  |  |  |  |  |  |  |  |  |
Balance at the beginning of period | $ | 18 |  |  | $ | (9) |  |  | $ | 1 |  |  | $ | (23) |  |  |  |  |
Change in cumulative translation adjustment | (1) |  |  | 11 |  |  | 16 |  |  | 25 |  |  |  |  |
Tax effect on change in cumulative translation adjustment | (1) |  |  | — |  |  | (1) |  |  | — |  |  |  |  |
Cumulative translation adjustment, net of taxes | (2) |  |  | 11 |  |  | 15 |  |  | 25 |  |  |  |  |
Balance at the end of period | $ | 16 |  |  | $ | 2 |  |  | $ | 16 |  |  | $ | 2 |  |  |  |  |
Other comprehensive income (loss) | $ | 202 |  |  | $ | (83) |  |  | $ | (207) |  |  | $ | (192) |  |  |  |  |
Accumulated other comprehensive loss | $ | (641) |  |  | $ | (415) |  |  | $ | (641) |  |  | $ | (415) |  |  |  |  |

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- References No definition available. + Details
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