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POST-RETIREMENT BENEFIT PLANS - Actuarial Assumptions Used to Measure Pension Costs (Details) (Details)
12 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Oct. 31, 2019
Retirement Benefits [Abstract]      
Discount rate 2.48% 2.74% 3.48%
Expected Return on plan assets 3.87% 4.64% 4.12%
Rate of compensation increase 2.91% 2.85% 2.85%