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Employee Benefits (Tables)
 3 Months Ended
Jan. 31, 2016
General Discussion of Pension and Other Postretirement Benefits [Abstract]  
Schedule of Components of Net Periodic Pension Costs
Our results of operations for the three months ended January 31, 2016 and 2015 reflect the following components of net periodic pension costs:
Three Months Ended January 31,
 
(In millions)
2016
 
2015
Service cost
$
2.3

 
$
2.0

Interest cost
1.2

 
1.1

Expected returns on assets
(1.6
)
 
(1.5
)
Amortization of prior service cost
—

 
—

Recognized net actuarial loss
0.4

 
0.2

Net periodic pension cost
$
2.3

 
$
1.8