|
| | | | | | | | | | | | | | | |
| Pension Benefits | | Other Postretirement
Benefits |
Three Months Ended March 31, (in millions) | 2016 | | 2015 | | 2016 | | 2015 |
Components of Net Periodic Benefit Cost (Income) | | | | | | | |
Service cost | $ | 1.3 |
| | $ | 1.3 |
| | $ | 0.2 |
| | $ | 0.3 |
|
Interest cost | 3.2 |
| | 3.1 |
| | 1.0 |
| | 1.0 |
|
Expected return on assets | (5.5 | ) | | (6.1 | ) | | (3.8 | ) | | (4.3 | ) |
Amortization of prior service credit | (0.2 | ) | | (0.2 | ) | | — |
| | — |
|
Recognized actuarial loss | 2.5 |
| | 2.0 |
| | — |
| | — |
|
Total Net Periodic Benefit Cost (Income) | $ | 1.3 |
| | $ | 0.1 |
| | $ | (2.6 | ) | | $ | (3.0 | ) |