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SHARE-BASED COMPENSATION (Allocated Share-based Compensation Expense) (Details) - USD ($)
$ in Millions
12 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Oct. 31, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
MTM adjustment for financial metrics based performance awards $ 2 $ 8 $ 0
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Abstract]      
Share-based compensation expense 93 82 59
Employee Service Share Based Compensation Tax Benefit Realized From Exercise of Awards as a component of income tax expense 12 9 5
Cost of Products and Services [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Abstract]      
Share-based compensation expense 16 14 11
Research and Development Expense [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Abstract]      
Share-based compensation expense 19 16 10
Selling, General and Administrative Expenses [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Abstract]      
Share-based compensation expense $ 58 $ 52 $ 38