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POST RETIREMENT BENEFIT PLANS (Tables)
 3 Months Ended
Jan. 31, 2022
Retirement Benefits [Abstract]  
Schedule of Components Of Net Periodic Pension Cost
The components of net periodic pension cost include the following:
 Three Months Ended
January 31,
(in millions)20222021
Service cost$3.0 $3.1 
Interest cost5.1 4.5 
Expected return on plan assets(8.2)(7.9)
Amortization of prior service cost
(0.1)— 
Recognized net actuarial loss2.0 3.8 
Net periodic pension cost$1.8 $3.5