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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

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- Definition Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period. + References No definition available. + Details
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