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Employee Benefit and Retirement Plans
 3 Months Ended
Feb. 28, 2015
Compensation and Retirement Disclosure [Abstract]  
EMPLOYEE BENEFIT AND RETIREMENT PLANS
EMPLOYEE BENEFIT AND RETIREMENT PLANS

The following table presents the components of our pension expense of the defined benefit plans for the three months ended February 28, 2015 and 2014 (in millions):
 
United States
 
International
 
2015
 
2014
 
2015
 
2014
Defined benefit plans
 
 
 
 
 
 
 
Service cost
$
5.9

 
$
5.0

 
$
2.1

 
$
2.0

Interest costs
7.9

 
7.8

 
3.1

 
3.4

Expected return on plan assets
(10.0
)
 
(9.7
)
 
(4.4
)
 
(4.7
)
Amortization of prior service costs
—

 
—

 
0.1

 
0.1

Recognized net actuarial loss
4.2

 
2.9

 
1.5

 
1.2

Total pension expense
$
8.0

 
$
6.0

 
$
2.4

 
$
2.0

 

During the three months ended February 28, 2015 and 2014, we contributed $7.3 million and $8.9 million, respectively, to our pension plans. Total contributions to our pension plans in fiscal year 2014 were $16.8 million.
The following table presents the components of our other postretirement benefits expense (in millions):


Three months ended February 28,
 

2015

2014
Other postretirement benefits




Service cost

$
0.8


$
1.0

Interest costs

0.9


1.0

Total other postretirement expense

$
1.7


$
2.0