DERIVATIVES, Fair value of derivative instruments and Consolidated Balance Sheet location (Details) - USD ($) $ in Millions	Jul. 31, 2020	Oct. 31, 2019
Derivative Fair Value by Balance Sheet Location
Derivatives asset fair value	$ 13	$ 12
Derivatives liabilities fair value	22	6
Derivatives Designated as Hedging Instruments | Cash Flow Hedging | Foreign Exchange Contracts | Other Current Assets
Derivative Fair Value by Balance Sheet Location
Derivatives asset fair value	1	3
Derivatives Designated as Hedging Instruments | Cash Flow Hedging | Foreign Exchange Contracts | Other Accrued Liabilities
Derivative Fair Value by Balance Sheet Location
Derivatives liabilities fair value	10	2
Derivatives Designated as Hedging Instruments | Net Investment Hedging [Member] | Foreign Exchange Contracts | Other Current Assets
Derivative Fair Value by Balance Sheet Location
Derivatives asset fair value	0	0
Derivatives Designated as Hedging Instruments | Net Investment Hedging [Member] | Foreign Exchange Contracts | Other Accrued Liabilities
Derivative Fair Value by Balance Sheet Location
Derivatives liabilities fair value	5	0
Derivatives Not Designated as Hedging Instruments | Foreign Exchange Contracts | Other Current Assets
Derivative Fair Value by Balance Sheet Location
Derivatives asset fair value	12	9
Derivatives Not Designated as Hedging Instruments | Foreign Exchange Contracts | Other Accrued Liabilities
Derivative Fair Value by Balance Sheet Location
Derivatives liabilities fair value	$ 7	$ 4