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DERIVATIVES, Effect of derivative instruments on Consolidated Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021
Derivative
Gain (loss) reclassified from accumulated other comprehensive loss into cost of sales	$ 5	$ (6)	$ 8	$ (14)
Cost of Products and Services
Derivative
Gain (loss) reclassified from accumulated other comprehensive loss into cost of sales	5	(6)	8	(14)
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	21	0	29	(6)
Derivatives Designated as Hedging Instrument | Cash Flow Hedging | Foreign Exchange Contracts | Cost of Products and Services
Derivative
Gain (loss) reclassified from accumulated other comprehensive loss into cost of sales	5	(6)	8	(14)
Derivatives Designated as Hedging Instrument | Net Investment Hedging [Member] | Foreign Exchange Contracts | Accumulated Other Comprehensive Income (Loss)
Derivative
Gain (loss) recognized in accumulated other comprehensive loss - translation adjustment	1	1	4	(3)
Derivatives Not Designated as Hedging Instruments | Other income (expense)
Derivative
Gain (loss) recognized in other income (expense)	$ 2	$ 3	$ (1)	$ (1)

X

- Definition

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

+ References

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

+ References

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