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Pension and Other Postretirement Benefit Plans
6 Months Ended
Jun. 30, 2012
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:

 

     Quarter Ended
June 30,
    Six Months Ended
June 30,
 
     2012     2011     2012     2011  
(dollars in millions)                         

Service cost, net of employee contributions

   $ 6.9      $ 6.8      $ 13.8      $ 13.5   

Interest cost

     4.9        4.7        9.7        9.4   

Expected return on plan assets

     (5.9     (5.9     (11.7     (11.7

Amortization

     2.5        2.0        5.0        4.0   
  

 

 

   

 

 

   

 

 

   

 

 

 

Net periodic pension cost

   $ 8.4      $ 7.6      $ 16.8      $ 15.2   
  

 

 

   

 

 

   

 

 

   

 

 

 

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 $0.1 million for both quarters ended June 30, 2012 and 2011. The net periodic benefit cost was $0.3 million for both of the six month periods ended June 30, 2012 and 2011.