DERIVATIVES, Effect of derivative instruments on Consolidated Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Jan. 31, 2019	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Derivative [Line Items]
Loss on interest rate swaps recognized in other comprehensive income (loss)		$ 12	$ 6
Gain (loss) recognized in accumulated other comprehensive income(loss)		(12)	(6)
Gain(loss reclassified from accumulated other comprehensive income (loss) into cost of sales		2	(8)
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ 7
Derivatives Not Designated as Hedging Instruments \| Other income (expense) [Member]
Derivative [Line Items]
Gain (loss) recognized in other income (expense), net within continuing operations		(1)	2	$ (2)
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 (loss)		0	(6)	0
Gain (loss) recognized in accumulated other comprehensive income(loss)		0	6	0
Cash Flow Hedges \| Derivatives Designated as Hedging Instrument \| Foreign Exchange Contracts \| Accumulated Other Comprehensive Loss
Derivative [Line Items]
Loss on interest rate swaps recognized in other comprehensive income (loss)		12	0	(7)
Gain (loss) recognized in accumulated other comprehensive income(loss)		(12)	0	7
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net		(1)	(1)	(1)
Cash Flow Hedges \| Derivatives Designated as Hedging Instrument \| Foreign Exchange Contracts \| Cost of Sales [Member]
Derivative [Line Items]
Gain(loss reclassified from accumulated other comprehensive income (loss) into cost of sales		(1)	9	(3)
Gain (loss) recognized in other income (expense), net within continuing operations		2	2	0
Net Investment Hedging \| Derivatives Designated as Hedging Instrument \| Foreign Exchange Contracts \| Accumulated Other Comprehensive Loss
Derivative [Line Items]
Loss on interest rate swaps recognized in other comprehensive income (loss)		5	0	0
Gain (loss) recognized in accumulated other comprehensive income(loss)		$ (5)	$ 0	$ 0

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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

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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 of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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