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POST RETIREMENT BENEFIT PLANS - Components of Net Periodic Pension Cost (Details) - USD ($)
$ in Millions
 3 Months Ended
Jan. 31, 2025
Jan. 31, 2024
Retirement Benefits [Abstract]    
Service cost $ 1.7 $ 1.7
Interest cost 7.7 8.6
Expected return on plan assets (9.6) (10.8)
Amortization of prior service benefit 0.0 (0.1)
Recognized net actuarial loss (gain) 0.1 (0.2)
Net periodic pension benefit $ (0.1) $ (0.8)