DERIVATIVES, Fair value of derivative instruments and Consolidated Balance Sheet location (Details) - USD ($) $ in Millions	Jan. 31, 2020	Oct. 31, 2019
Derivative Fair Value by Balance Sheet Location
Derivatives asset fair value	$ 6	$ 12
Derivatives liabilities fair value	6	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	3	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	2	2
Derivatives Not Designated as Hedging Instruments | Foreign Exchange Contracts | Other Current Assets
Derivative Fair Value by Balance Sheet Location
Derivatives asset fair value	3	9
Derivatives Not Designated as Hedging Instruments | Foreign Exchange Contracts | Other Accrued Liabilities
Derivative Fair Value by Balance Sheet Location
Derivatives liabilities fair value	$ 4	$ 4