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DERIVATIVES, Fair value of derivative instruments and Consolidated Balance Sheet location (Details) - USD ($)
$ in Millions
Jul. 31, 2019
Oct. 31, 2018
Derivative Fair Value by Balance Sheet Location    
Derivatives asset fair value $ 10 $ 16
Derivatives liabilities fair value 5 5
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 7 11
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 1
Derivatives Not Designated as Hedging Instruments | Foreign Exchange Contracts | Other Current Assets    
Derivative Fair Value by Balance Sheet Location    
Derivatives asset fair value 3 5
Derivatives Not Designated as Hedging Instruments | Foreign Exchange Contracts | Other Accrued Liabilities    
Derivative Fair Value by Balance Sheet Location    
Derivatives liabilities fair value $ 3 $ 4