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STOCKHOLDERS' EQUITY (Tables) | 12 Months Ended
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Oct. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Accumulated other comprehensive income | The following table summarizes the components of our accumulated other comprehensive income (loss) as of October 31, 2021 and 2020, net of tax effect:
| October 31,
| 2021 |  | 2020
| (in millions)
Foreign currency translation, net of tax expense of $(8) and $(6) for 2021 and 2020, respectively | $ | (185) |  |  | (194) |
Unrealized losses (including prior service benefit) on defined benefit plans, net of tax benefit of $80 and $154 for 2021 and 2020, respectively | (100) |  |  | (317) |
Unrealized gains (losses) on derivative instruments, net of tax benefit of $1 and $6 for 2021 and 2020, respectively | 3 |  |  | (11) |
Total accumulated other comprehensive loss | $ | (282) |  |  | $ | (522) |
Changes in accumulated other comprehensive income (loss) by component and related tax effects for the years ended October 31, 2021 and 2020 were as follows:
|  |  |  |  |  | Net defined benefit pension cost and post retirement plan costs |  |  |  |
|  |  |  | Foreign currency translation |  | Prior service credits |  | Actuarial Losses |  | Unrealized gains (losses) on derivatives |  | Total
|  |  |  | (in millions)
As of October 31, 2019 |  |  |  | $ | (204) |  |  | $ | 131 |  |  | $ | (437) |  |  | $ | (4) |  |  | $ | (514) |
Other comprehensive income (loss) before reclassifications |  |  |  | 11 |  |  | — |  |  | (66) |  |  | (12) |  |  | (67) |
Amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  | — |  |  | (7) |  |  | 61 |  |  | 2 |  |  | 56 |
Tax (expense) benefit |  |  |  | (1) |  |  | 1 |  |  | — |  |  | 3 |  |  | 3 |
Other comprehensive income (loss) |  |  |  | 10 |  |  | (6) |  |  | (5) |  |  | (7) |  |  | (8) |
As of October 31, 2020 |  |  |  | $ | (194) |  |  | $ | 125 |  |  | $ | (442) |  |  | $ | (11) |  |  | $ | (522) |
Other comprehensive income before reclassifications |  |  |  | 11 |  |  | — |  |  | 228 |  |  | 2 |  |  | 241 |
Amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  | — |  |  | (1) |  |  | 64 |  |  | 17 |  |  | 80 |
Tax expense |  |  |  | (2) |  |  | — |  |  | (74) |  |  | (5) |  |  | (81) |
Other comprehensive income (loss) |  |  |  | 9 |  |  | (1) |  |  | 218 |  |  | 14 |  |  | 240 |
As of October 31, 2021 |  |  |  | $ | (185) |  |  | $ | 124 |  |  | $ | (224) |  |  | $ | 3 |  |  | $ | (282) |
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] | Reclassifications out of accumulated other comprehensive income (loss) for the years ended October 31, 2021 and 2020 were as follows (in millions):
Details about Accumulated Other Comprehensive Income components |  | Amounts Reclassified from Other Comprehensive Income |  | Affected line item in statement of operations
|  | 2021 |  | 2020 |  |
Unrealized losses on derivatives |  | $ | (17) |  |  | $ | (2) |  |  | Cost of products and interest expense
|  | (17) |  |  | (2) |  |  | Total before income tax
|  | 4 |  |  | — |  |  | Benefit for income tax
|  | (13) |  |  | (2) |  |  | Total net of income tax
Net defined benefit pension cost and post retirement plan costs: |  |  |  |  |  |
Actuarial net loss |  | (64) |  |  | (61) |  |  | Other (income) expense
Prior service benefit |  | 1 |  |  | 7 |  |  | Other (income) expense
|  | (63) |  |  | (54) |  |  | Total before income tax
|  | 15 |  |  | 16 |  |  | Benefit for income tax
|  | (48) |  |  | (38) |  |  | Total net of income tax
Total reclassifications for the period |  | $ | (61) |  |  | $ | (40) |  |  |

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