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DERIVATIVES, Effect of derivative instruments on Consolidated Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2021	Jul. 31, 2020
Derivative
Loss reclassified from accumulated other comprehensive loss into cost of sales	$ (5)	$ 1	$ (19)	$ 2
Interest Expense
Derivative
Loss reclassified from accumulated other comprehensive loss into cost of sales	(1)	0	(1)	(1)
Cost of Products and Services
Derivative
Loss reclassified from accumulated other comprehensive loss into cost of sales	(4)	1	(18)	3
Cash Flow Hedging
Derivative
Cash flow hedge net gain to be reclassified within next Twelve Months	3
Cash Flow Hedging \| Cost of Products and Services
Derivative
Cash flow hedge net gain to be reclassified within next Twelve Months	0
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	1	(9)	(5)	(6)
Derivatives Designated as Hedging Instrument \| Cash Flow Hedging \| Foreign Exchange Contracts \| Interest Expense
Derivative
Loss reclassified from accumulated other comprehensive loss into cost of sales	(1)	0	(1)	(1)
Derivatives Designated as Hedging Instrument \| Cash Flow Hedging \| Foreign Exchange Contracts \| Cost of Products and Services
Derivative
Loss reclassified from accumulated other comprehensive loss into cost of sales	(4)	1	(18)	3
Loss recognized in other income (expense)	(1)	0	(1)	2
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	1	(7)	(2)	(6)
Derivatives Not Designated as Hedging Instruments \| Other income (expense)
Derivative
Loss recognized in other income (expense)	$ (3)	$ 9	$ (4)	$ 6