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STOCK-BASED COMPENSATION PLANS - Weighted-average Valuation Assumptions For Options Granted (Details) - Stock option awards - $ / shares
12 Months Ended
Oct. 31, 2018
Oct. 31, 2017
Oct. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Per share weighted-average fair value at date of grant (usd per share) $ 14.25 $ 12.55 $ 8.79
Estimated Useful Life (Years)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected life of option in years 6 years 14 days 6 years 8 days 5 years 11 months 19 days
Expected stock price volatility 20.58% 22.15% 24.04%
Risk-free interest rate 2.21% 2.03% 1.80%
Expected dividend yield 0.97% 1.01% 1.24%