Employee Benefit Plans (Tables)
 9 Months Ended
Apr. 30, 2017
Retirement Benefits, Description [Abstract]  
Components Of Net Periodic Pension Costs
Net periodic benefit costs for the Company’s pension plans include the following components (in millions):
 
Three Months Ended
April 30,
 
Nine Months Ended
April 30,
 
2017
 
2016
 
2017
 
2016
Net periodic benefit cost:
 

 
 

 
 

 
 

Service cost
$
2.0

 
$
4.7

 
$
6.2

 
$
13.8

Interest cost
3.4

 
4.8

 
10.1

 
14.3

Expected return on assets
(6.6
)
 
(7.2
)
 
(19.8
)
 
(21.7
)
Prior service cost amortization
0.2

 
0.1

 
0.4

 
0.4

Actuarial loss amortization
1.8

 
2.1

 
5.4

 
6.4

Net periodic benefit cost
$
0.8

 
$
4.5

 
$
2.3

 
$
13.2