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DERIVATIVES, Fair value of derivative instruments and Consolidated Balance Sheet location (Details) - USD ($)
$ in Millions
Apr. 30, 2019
Oct. 31, 2018
Derivative Fair Value by Balance Sheet Location [Abstract]    
Total derivatives Asset $ 2 $ 6
Total derivatives Liabilities 4 6
Designated as Hedging Instruments | Cash Flow Hedging | Foreign Exchange Contracts | Other Current Assets [Member]    
Derivative Fair Value by Balance Sheet Location [Abstract]    
Total derivatives Asset 2 5
Designated as Hedging Instruments | Cash Flow Hedging | Foreign Exchange Contracts | Other Current Liabilities [Member]    
Derivative Fair Value by Balance Sheet Location [Abstract]    
Total derivatives Liabilities 2 4
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contracts | Other Current Assets [Member]    
Derivative Fair Value by Balance Sheet Location [Abstract]    
Total derivatives Asset 0 1
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contracts | Other Current Liabilities [Member]    
Derivative Fair Value by Balance Sheet Location [Abstract]    
Total derivatives Liabilities $ 2 $ 2