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POSTRETIREMENT BENEFIT PLANS
 6 Months Ended
Jun. 30, 2015
Compensation and Retirement Disclosure [Abstract]  
POSTRETIREMENT BENEFIT PLANS
POSTRETIREMENT BENEFIT PLANS
The following tables provide the components of net periodic benefit cost for pension plans and other employee-related benefit plans for the three and six months ended June 30, 2015 and 2014. 
 
2015
 
2014
Three Months Ended June 30
Pension
 
Other
Benefits
 
Total
 
Pension
 
Other
Benefits
 
Total
Service cost
 
$
1.3

 
 
 
$
0.2

 
 
 
$
1.5

 
 
 
$
1.3

 
 
 
$
0.4

 
 
 
$
1.7

 
Interest cost
 
3.6

 
 
 
1.2

 
 
 
4.8

 
 
 
3.9

 
 
 
1.9

 
 
 
5.8

 
Expected return on plan assets
 
(5.1
)
 
 
 
(0.2
)
 
 
 
(5.3
)
 
 
 
(5.2
)
 
 
 
(0.1
)
 
 
 
(5.3
)
 
Amortization of prior service cost (benefit)
 
0.2

 
 
 
(2.7
)
 
 
 
(2.5
)
 
 
 
0.2

 
 
 
(1.5
)
 
 
 
(1.3
)
 
Amortization of net actuarial loss
 
2.1

 
 
 
1.1

 
 
 
3.2

 
 
 
1.5

 
 
 
0.8

 
 
 
2.3

 
Total net periodic benefit cost
 
$
2.1

 
 
 
$
(0.4
)
 
 
 
$
1.7

 
 
 
$
1.7

 
 
 
$
1.5

 
 
 
$
3.2

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2015
 
2014
Six Months Ended June 30
Pension
 
Other
Benefits
 
Total
 
Pension
 
Other
Benefits
 
Total
Service cost
 
$
2.6

 
 
 
$
0.4

 
 
 
$
3.0

 
 
 
$
2.5

 
 
 
$
0.9

 
 
 
$
3.4

 
Interest cost
 
7.1

 
 
 
2.4

 
 
 
9.5

 
 
 
7.8

 
 
 
3.9

 
 
 
11.7

 
Expected return on plan assets
 
(10.2
)
 
 
 
(0.4
)
 
 
 
(10.6
)
 
 
 
(10.4
)
 
 
 
(0.3
)
 
 
 
(10.7
)
 
Amortization of prior service cost (benefit)
 
0.5

 
 
 
(5.5
)
 
 
 
(5.0
)
 
 
 
0.4

 
 
 
(3.0
)
 
 
 
(2.6
)
 
Amortization of net actuarial loss
 
4.3

 
 
 
2.2

 
 
 
6.5

 
 
 
3.1

 
 
 
1.5

 
 
 
4.6

 
Total net periodic benefit cost
 
$
4.3

 
 
 
$
(0.9
)
 
 
 
$
3.4

 
 
 
$
3.4

 
 
 
$
3.0

 
 
 
$
6.4

 
We made contributions to our global postretirement plans of $5.2 and $4.8 during the six months ended June 30, 2015 and 2014, respectively. We expect to make additional contributions of approximately $5 to $10 during the remainder of 2015, principally related to our other postretirement employee benefit plans.
Amortization from accumulated other comprehensive income into earnings related to prior service cost and net actuarial loss was $0.6 and $1.1, and $0.7 and $1.3, net of tax, during the three and six months ended June 30, 2015 and 2014, respectively. No other reclassifications from accumulated other comprehensive income into earnings were recognized during any of the presented periods.