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STOCKHOLDERS' EQUITY (Tables)
 12 Months Ended
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,
 20212020
 (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 translationPrior service creditsActuarial LossesUnrealized gains (losses) on derivativesTotal
(in millions)
As of October 31, 2019$(204)$131 $(437)$(4)$(514)
Other comprehensive income (loss) before reclassifications11 — (66)(12)(67)
Amounts reclassified out of accumulated other comprehensive income (loss)— (7)61 2 56 
Tax (expense) benefit(1)1 — 3 3 
Other comprehensive income (loss)10 (6)(5)(7)(8)
As of October 31, 2020$(194)$125 $(442)$(11)$(522)
Other comprehensive income before reclassifications11 — 228 2 241 
Amounts reclassified out of accumulated other comprehensive income (loss)— (1)64 17 80 
Tax expense(2)— (74)(5)(81)
Other comprehensive income (loss)9 (1)218 14 240 
As of October 31, 2021$(185)$124 $(224)$3 $(282)
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
Reclassifications out of accumulated other comprehensive income (loss) for the years ended October 31, 2021 and 2020 were as follows (in millions):
Details about Accumulated Other
Comprehensive Income components		Amounts Reclassified
from Other Comprehensive Income		Affected line item in
statement of operations
20212020
Unrealized losses on derivatives$(17)$(2)Cost of products and interest expense
(17)(2)Total before income tax
4 — Benefit for income tax
(13)(2)Total net of income tax
Net defined benefit pension cost and post retirement plan costs:
Actuarial net loss(64)(61)Other (income) expense
Prior service benefit1 7 Other (income) expense
(63)(54)Total before income tax
15 16 Benefit for income tax
(48)(38)Total net of income tax
Total reclassifications for the period$(61)$(40)