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GOODWILL AND OTHER INTANGIBLE ASSETS Amortization Expense and Future Amortization Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Oct. 31, 2019
Oct. 31, 2018
Oct. 31, 2017
Amortization Expense, Maturity Schedule [Abstract]      
Amortization of intangible assets during the period $ 128 $ 110 $ 120
Future amortization expense for 2020 186    
Future amortization expense for 2021 172    
Future amortization expense for 2022 150    
Future amortization expense for 2023 107    
Future amortization expense for 2024 86    
Future amortization thereafter $ 291