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Retirement Plans | 3 Months Ended
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Mar. 31, 2014
Retirement Plans [Abstract] |
Retirement Plans | (9) Retirement Plans The components of the net periodic benefit cost for our plans were as follows:
|  | 3 Months Ended March 31, |
|  | Defined Benefit |  |  | Retiree Health |
|  | Pension Plans |  |  | Care Plan |
|  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Service cost |  | $ | 2.0 |  |  | $ | 2.2 |  |  | $ | - |  |  | $ | - |
Interest cost |  |  | 3.3 |  |  |  | 3.1 |  |  |  | 0.2 |  |  |  | 0.3 |
Expected return on assets |  |  | (3.3 | ) |  |  | (2.8 | ) |  |  | - |  |  |  | - |
Other |  |  | 1.0 |  |  |  | 0.9 |  |  |  | - |  |  |  | 0.1 |
Net periodic benefit cost |  | $ | 3.0 |  |  | $ | 3.4 |  |  | $ | 0.2 |  |  | $ | 0.4 |
During the three months ended March 31, 2014, contributions made to our pension plans were $3.3 and contributions made to our retiree health care plan were $0.5. During 2014, we expect to make total contributions of $13.3 to our pension plans and to fund our retiree health care payments as incurred.

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