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Pension and Other Postretirement Benefit Plans
15 Months Ended
Mar. 31, 2013
Pension and Other Postretirement Benefit Plans

9. Pension and Other Postretirement Benefit Plans

Defined Benefit Pension Plans - The company has both tax-qualified and nonqualified, noncontributory defined benefit pension plans, that together cover certain domestic and foreign employees. These plans provide benefits based upon a participant’s compensation and years of service.

The components of net periodic pension cost are as follows:

 

     Three Months Ended
March 31,
 
     2013     2012  
(dollars in millions)             

Service cost, net of employee contributions

   $ 7.5      $ 6.9   

Interest cost

     4.6        4.8   

Expected return on plan assets

     (6.5     (5.8

Amortization

     3.4        2.5   
  

 

 

   

 

 

 

Net periodic pension cost

   $ 9.0      $ 8.4   
  

 

 

   

 

 

 

 

Other Postretirement Benefit Plan - The company does not provide subsidized postretirement healthcare benefits and life insurance coverage except for a limited number of former employees. As this plan is unfunded, contributions are made as benefits are incurred. The net periodic benefit cost was $0.2 million for the three months ended March 31, 2013 and 2012.