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Employee Benefit Plans (Tables)
 6 Months Ended
Jan. 31, 2016
General Discussion of Pension and Other Postretirement Benefits [Abstract]  
Components Of Net Periodic Pension Costs
Net periodic pension costs for the Company’s pension plans include the following components (millions of dollars):
 
Three Months Ended
January 31,
 
Six Months Ended
January 31,
 
2016
 
2015
 
2016
 
2015
Net periodic cost:
 

 
 

 
 

 
 

Service cost
$
4.5

 
$
5.1

 
$
9.1

 
$
10.3

Interest cost
4.8

 
4.9

 
9.5

 
9.7

Expected return on assets
(7.2
)
 
(7.5
)
 
(14.5
)
 
(14.9
)
Prior service cost and transition amortization
0.1

 
0.1

 
0.3

 
0.3

Settlement cost
—

 
3.9

 
—

 
3.9

Actuarial loss amortization
2.1

 
1.9

 
4.3

 
3.7

Net periodic benefit cost
$
4.3

 
$
8.4

 
$
8.7

 
$
13.0