| | | Pension Benefits | | Other Benefits | | ||||||||
| | | 2013 | | 2012 | | 2013 | | 2012 | | ||||
| | | (In millions) | | ||||||||||
| Change in projected benefit obligation | | | | | | | | | | | | | |
| Benefit obligation at January 1, | | $ | 716.8 | | $ | 746.1 | | $ | 27.3 | | $ | 29.9 | |
| Service cost | | | 5.4 | | | 6.5 | | | 0.5 | | | 0.5 | |
| Interest cost | | | 28.9 | | | 33.4 | | | 1.1 | | | 1.2 | |
| Plan participants' contributions | | | - | | | - | | | 1.1 | | | 1.1 | |
| Amendments | | | - | | | 7.5 | | | (8.6) | | | - | |
| Actuarial loss (gain) | | | (68.6) | | | 68.7 | | | 0.9 | | | (1.7) | |
| Foreign currency exchange rate changes | | | (4.2) | | | 1.8 | | | 0.6 | | | - | |
| Curtailments | | | - | | | (29.2) | | | - | | | - | |
| Settlements | | | - | | | (77.3) | | | - | | | - | |
| Benefits paid | | | (41.5) | | | (40.7) | | | (3.3) | | | (3.7) | |
| Projected benefit obligation at December 31, | | | 636.8 | | | 716.8 | | | 19.6 | | | 27.3 | |
| Change in plan assets | | | | | | | | | | | | | |
| Fair value of plan assets at January 1, | | | 548.0 | | | 583.0 | | | 21.4 | | | 19.3 | |
| Actual return on plan assets | | | 58.5 | | | 59.0 | | | 2.4 | | | 2.1 | |
| Employer contributions | | | 6.7 | | | 7.6 | | | 2.2 | | | 2.6 | |
| Plan participants' contributions | | | - | | | - | | | 1.1 | | | 1.1 | |
| Foreign currency exchange rate changes | | | (3.6) | | | 1.7 | | | - | | | - | |
| Settlements | | | - | | | (62.6) | | | (2.2) | | | - | |
| Benefits paid | | | (41.5) | | | (40.7) | | | (3.3) | | | (3.7) | |
| Fair value of plan assets at December 31, | | | 568.1 | | | 548.0 | | | 21.6 | | | 21.4 | |
| Funded status of plan | | $ | (68.7) | | $ | (168.8) | | $ | 2.0 | | $ | (5.9) | |