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Employee Benefits (Tables)
6 Months Ended
Apr. 30, 2022
Retirement Benefits [Abstract]  
Schedule of components of net periodic pension costs
The Company's results of operations for the three and six months ended April 30, 2022, and 2021, reflect the following components of net periodic defined benefit costs:
Periods Ended April 30,Three MonthsSix Months
(In millions)2022202120222021
Service cost$4.6 $4.3 $9.2 $8.6 
Interest cost1.3 1.1 2.6 2.2 
Expected return on plan assets(3.9)(3.1)(7.9)(6.2)
Recognized net actuarial gain0.6 1.3 1.2 2.7 
Net periodic defined benefit plan cost$2.6 $3.6 $5.1 $7.3