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PENSIONS AND OTHER POSTRETIREMENT BENEFITS | 3 Months Ended
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Mar. 31, 2015
Postemployment Benefits [Abstract] |
PENSIONS AND OTHER POSTRETIREMENT BENEFITS | NOTE 7 - PENSIONS AND OTHER POSTRETIREMENT BENEFITS The following are the components of defined benefit pension and OPEB expense for the three months ended March 31, 2015 and 2014: Defined Benefit Pension Expense
| (In Millions)
| Three Months Ended March 31,
| 2015 |  | 2014
Service cost | $ | 6.3 |  |  | $ | 6.7 |
Interest cost | 9.4 |  |  | 10.1 |
Expected return on plan assets | (14.9 | ) |  | (14.5 | )
Amortization: |  |  |
Prior service costs | 0.6 |  |  | 0.6 |
Net actuarial loss | 5.4 |  |  | 3.5 |
Curtailments/settlements | 0.3 |  |  | 0.3 |
Net periodic benefit cost to continuing operations | $ | 7.1 |  |  | $ | 6.7 |
Other Postretirement Benefits Expense
| (In Millions)
| Three Months Ended March 31,
| 2015 |  | 2014
Service cost | $ | 1.5 |  |  | $ | 1.7 |
Interest cost | 3.3 |  |  | 3.4 |
Expected return on plan assets | (4.6 | ) |  | (4.3 | )
Amortization: |  |  |
Prior service costs | (0.9 | ) |  | (0.9 | )
Net actuarial loss | 3.1 |  |  | 1.3 |
Net periodic benefit cost to continuing operations | $ | 2.4 |  |  | $ | 1.2 |
We made pension contributions of $3.9 million for the three months ended March 31, 2015, compared to pension contributions of $4.0 million for the three months ended March 31, 2014. OPEB contributions are typically made on an annual basis in the first quarter of each year, but due to plan funding requirements being met, no OPEB contributions were required or made for the three months ended March 31, 2015 and March 31, 2014.

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