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Pension and Other Postretirement Benefits
3 Months Ended
Sep. 30, 2012
Pension and Other Postretirement Benefits  
Pension and Other Postretirement Benefits

7.         Pension and Other Postretirement Benefits

 

The components of the net periodic benefit cost related to the Company’s pension and other postretirement benefits for the three months ended September 30, 2012 and 2011 were as follows:

 

Three months ended September 30,

 

 

 

 

 

Other Postretirement

 

($ in millions)

 

Pension Plans

 

Plans

 

 

 

2012

 

2011

 

2012

 

2011

 

Service cost

 

  $

8.1

 

  $

5.6

 

  $

1.1

 

  $

0.7

 

Interest cost

 

13.3

 

12.3

 

3.0

 

2.7

 

Expected return on plan assets

 

(13.7)

 

(13.0)

 

(1.6)

 

(1.6)

 

Amortization of net loss

 

7.0

 

0.2

 

0.8

 

0.6

 

Amortization of prior service cost (benefit)

 

0.2

 

4.4

 

(1.0)

 

(2.0)

 

Net pension expense

 

  $

14.9

 

  $

9.5

 

  $

2.3

 

  $

0.4

 

 

During the three months ended September 30, 2012 and 2011, the Company made $48.1 million and $11.6 million, respectively of required contributions to its defined benefit pension plans.  The Company currently expects to make $33.4 million in required contributions to its defined benefit pension plans during the remainder of fiscal year 2013.