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EMPLOYEE BENEFIT PLANS
 3 Months Ended
Mar. 31, 2014
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]  
EMPLOYEE BENEFIT PLANS
EMPLOYEE BENEFIT PLANS
Net periodic cost for our pension and postretirement benefit plans was as follows: 
 
Pension Plans
 
Postretirement Plans
Three Months Ended March 31,
2014
 
2013
 
2014
 
2013
Service cost
$
0.9

 
$
1.2

 
$
0.2

 
$
0.2

Interest cost
10.9

 
9.9

 
2.0

 
1.7

Expected return on plan assets
(12.8
)
 
(13.6
)
 
(0.3
)
 
(0.4
)
Net amortization
—

 
—

 
(0.8
)
 
(0.8
)
Net periodic (benefit) cost
$
(1.0
)
 
$
(2.5
)
 
$
1.1

 
$
0.7

We disclosed in our 2013 Annual Report on Form 10-K that we expected to contribute $6.3 and $9.8 in 2014 to our pension and postretirement plans, respectively. Through March 31, 2014, actual contributions to our continuing pension and postretirement plans were $1.9 and $0.7, respectively.
We also sponsor various defined contribution retirement plans in the United States and a number of other countries, consisting primarily of savings and profit growth sharing plans. Contributions to the savings plans are based in part on matching a percentage of employees’ contributions. Contributions to the profit growth sharing plans are generally based on our financial performance. Amounts expensed related to these plans, excluding plans of subsidiaries primarily dedicated to the discontinued Coating Resins segment, for the three months ended March 31, 2014 and 2013 were $6.7 and $7.9, respectively. Certain employees of our discontinued Coating Resins and Building Block Chemicals segments historically participated in our continuing plans.