STOCKHOLDERS' EQUITY - Reclassifications out of accumulated other comprehensive income (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified out of accumulated other comprehensive income (loss)	$ (14)	$ (23)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Tax	0	0
Other Comprehensive Income (Loss)	0	8
Unrealized gains (losses) on derivatives	(8)	2
Amounts reclassified into earnings related to derivative instruments, tax expense (benefit)	1	(1)	$ 0
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	(7)	1	$ 0
Amortization of net actuarial (gain) loss	(21)	(12)
Amortization of prior service benefit	1	1
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax	22	13
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, Tax	7	4
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, after Tax	15	9
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	8	18
Other Operating Income (Expense)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified out of accumulated other comprehensive income (loss)	0	8
Foreign Currency Gain (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified out of accumulated other comprehensive income (loss)	0	8
Cost of Product and Services
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses) on derivatives	(6)	4
Interest Expense
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses) on derivatives	$ (2)	$ (2)