Pension Benefits | Other Benefits | ||||||||||||||||||||||
Year Ended December 31, | 2013 | 2012 | 2011 | 2013 | 2012 | 2011 | |||||||||||||||||
Service cost | $ | 280 | $ | 291 | $ | 249 | $ | 36 | $ | 34 | $ | 32 | |||||||||||
Interest cost | 378 | 388 | 391 | 42 | 43 | 45 | |||||||||||||||||
Expected return on plan assets1 | (659 | ) | (573 | ) | (508 | ) | (9 | ) | (8 | ) | (8 | ) | |||||||||||
Amortization of prior service cost (credit) | (2 | ) | (2 | ) | 5 | (10 | ) | (52 | ) | (61 | ) | ||||||||||||
Amortization of actuarial loss | 197 | 137 | 82 | 13 | 6 | 2 | |||||||||||||||||
Net periodic benefit cost | $ | 194 | $ | 241 | $ | 219 | $ | 72 | $ | 23 | $ | 10 | |||||||||||
Settlement charge | 1 | 3 | 3 | — | — | — | |||||||||||||||||
Curtailment charge | — | 6 | — | — | — | — | |||||||||||||||||
Special termination benefits2 | 2 | 1 | 8 | — | — | 3 | |||||||||||||||||
Total cost recognized in the statements of income | $ | 197 | $ | 251 | $ | 230 | $ | 72 | $ | 23 | $ | 13 | |||||||||||
1 | The Company has elected to use the actual fair value of plan assets as the market-related value of assets in the determination of the expected return on plan assets. |
2 | The special termination benefits primarily relate to the Company's productivity, restructuring and integration initiatives. Refer to Note 18 for additional information related to our productivity, restructuring and integration initiatives. |