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Employee Benefits (Tables)
 6 Months Ended
Apr. 30, 2020
Retirement Benefits [Abstract]  
Schedule of Components of Net Periodic Pension Costs
Our results of operations for the three and six months ended April 30, 2020 and 2019, reflect the following components of net periodic defined benefit costs:
Periods Ended April 30,
Three Months
 
Six Months
(In millions)
2020
 
2019
 
2020
 
2019
Service cost
$
3.4

 
$
2.7

 
$
6.9

 
$
5.4

Interest cost
1.4

 
1.3

 
2.6

 
2.5

Expected return on plan assets
(2.7
)
 
(2.3
)
 
(5.4
)
 
(4.6
)
Recognized net actuarial loss
1.0

 
0.4

 
2.0

 
0.8

Net periodic defined benefit plan cost
$
3.1

 
$
2.1

 
$
6.1

 
$
4.1