DERIVATIVES, Effect of derivative instruments on Consolidated Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Derivative
Gain (loss) reclassified from accumulated other comprehensive loss into cost of sales	$ 1	$ (4)	$ 4	$ 2
Interest Expense
Derivative
Gain (loss) reclassified from accumulated other comprehensive loss into cost of sales	(1)	(1)	(1)	(1)
Cost of Products and Services
Derivative
Gain (loss) reclassified from accumulated other comprehensive loss into cost of sales	2	(3)	5	3
Derivatives Designated as Hedging Instrument \| Cash Flow Hedging \| Foreign Exchange Contracts
Derivative
Gain (loss) reclassified from accumulated other comprehensive loss into cost of sales	$ 2	$ (4)	$ 5	$ 2
Gain (Loss) Reclassified from AOCI into cost of sales [Extensible Enumeration]	Cost of revenue	Cost of revenue	Cost of revenue	Cost of revenue
Gain (loss) recognized	$ 2	$ 1	$ 3	$ 3
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Cost of revenue	Cost of revenue	Cost of revenue	Cost of revenue
Derivatives Designated as Hedging Instrument \| Cash Flow Hedging \| Foreign Exchange Contracts \| Accumulated Other Comprehensive Income (Loss)
Derivative
Gain (loss) recognized in accumulated other comprehensive loss	$ 9	$ 11	$ (1)	$ (20)
Derivatives Designated as Hedging Instrument \| Cash Flow Hedging \| Foreign Exchange Contracts \| Interest Expense
Derivative
Loss reclassified from accumulated other comprehensive loss into Interest expense	(1)	0	(1)	0
Derivatives Designated as Hedging Instrument \| Net Investment Hedging \| Foreign Exchange Contracts \| Accumulated Other Comprehensive Income (Loss)
Derivative
Gain (loss) recognized in accumulated other comprehensive loss - translation adjustment	0	0	0	(1)
Derivatives Not Designated as Hedging Instruments
Derivative
Gain (loss) recognized	$ 3	$ 7	$ 1	$ (6)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other income (expense), net	Other income (expense), net	Other income (expense), net	Other income (expense), net

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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-Topic 815
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Indicates line item in statement of income or comprehensive income that includes gain (loss) from effective portion of derivative instrument reclassified from accumulated other comprehensive income (AOCI) into income.

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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The amount of net gains or losses on interest rate cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings.

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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

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Amount, before tax and reclassification, of gain (loss) from derivative designated and qualifying as net investment hedge.

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