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DERIVATIVES, Effect of derivative instruments on Consolidated Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jan. 31, 2018	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Derivative [Line Items]
Loss on interest rate swaps recognized in other comprehensive income		$ 6	$ (7)
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net		(1)	(1)	$ 0
Gain (loss) recognized in accumulated other comprehensive income(loss)		(6)	7
Gain(loss reclassified from accumulated other comprehensive income (loss) into cost of sales		(8)	(4)
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months		4
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ 4
Derivatives Not Designated as Hedging Instruments \| Other income (expense) [Member]
Derivative [Line Items]
Gain (loss) recognized in other income (expense), net within continuing operations		2	(2)	5
Cash Flow Hedges \| Derivatives Designated as Hedging Instrument \| Interest Rate Swap [Member] \| Other Comprehensive Income (Loss) [Member]
Derivative [Line Items]
Loss on interest rate swaps recognized in other comprehensive income		(6)	0	0
Gain (loss) recognized in accumulated other comprehensive income(loss)		6	0	0
Cash Flow Hedges \| Derivatives Designated as Hedging Instrument \| Forward Contracts Buy/(Sell) [Member] \| Cost of Sales [Member]
Derivative [Line Items]
Gain (loss) recognized in other income (expense), net within continuing operations		2	0	0
Cash Flow Hedges \| Derivatives Designated as Hedging Instrument \| Foreign Exchange Contracts [Member] \| Accumulated Other Comprehensive Income (Loss)
Derivative [Line Items]
Loss on interest rate swaps recognized in other comprehensive income		0	(7)	0
Gain (loss) recognized in accumulated other comprehensive income(loss)		0	7	0
Cash Flow Hedges \| Derivatives Designated as Hedging Instrument \| Foreign Exchange Contracts [Member] \| Cost of Sales [Member]
Derivative [Line Items]
Gain(loss reclassified from accumulated other comprehensive income (loss) into cost of sales		$ 9	$ (3)	$ 1