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Pension and Other Postretirement Benefits (Tables) | 6 Months Ended
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Jun. 30, 2015
Compensation and Retirement Disclosure [Abstract] |
Components of Net Periodic Benefit Cost | The components of net periodic benefit cost were as follows:
|  | Second quarter ended June 30, |  |  | Six months ended June 30, |
Pension benefits |  | 2015 |  |  | 2014 |  |  | 2015 |  |  | 2014 |
Service cost |  | $ | 44 |  |  | $ | 42 |  |  | $ | 88 |  |  | $ | 83 |
Interest cost |  |  | 145 |  |  |  | 159 |  |  |  | 289 |  |  |  | 319 |
Expected return on plan assets |  |  | (189 | ) |  |  | (195 | ) |  |  | (377 | ) |  |  | (388 | )
Recognized net actuarial loss |  |  | 117 |  |  |  | 98 |  |  |  | 235 |  |  |  | 195 |
Amortization of prior service cost |  |  | 4 |  |  |  | 5 |  |  |  | 8 |  |  |  | 9 |
Settlement* |  |  | — |  |  |  | — |  |  |  | 1 |  |  |  | — |
Special termination benefits* |  |  | 10 |  |  |  | — |  |  |  | 12 |  |  |  | — |
Net periodic benefit cost |  | $ | 131 |  |  | $ | 109 |  |  | $ | 256 |  |  | $ | 218 |
* | These amounts were recorded in Restructuring and other charges on the accompanying Statement of Consolidated Operations (see Note D).
|  | Second quarter ended June 30, |  |  | Six months ended June 30, |
Other postretirement benefits |  | 2015 |  |  | 2014 |  |  | 2015 |  |  | 2014 |
Service cost |  | $ | 4 |  |  | $ | 4 |  |  | $ | 7 |  |  | $ | 8 |
Interest cost |  |  | 23 |  |  |  | 29 |  |  |  | 46 |  |  |  | 58 |
Recognized net actuarial loss |  |  | 5 |  |  |  | 3 |  |  |  | 9 |  |  |  | 6 |
Amortization of prior service benefit |  |  | (10 | ) |  |  | (4 | ) |  |  | (19 | ) |  |  | (9 | )
Curtailment* |  |  | (1 | ) |  |  | — |  |  |  | (1 | ) |  |  | — |
Special termination benefits* |  |  | 1 |  |  |  | — |  |  |  | 1 |  |  |  | — |
Net periodic benefit cost |  | $ | 22 |  |  | $ | 32 |  |  | $ | 43 |  |  | $ | 63 |
* | These amounts were recorded in Restructuring and other charges on the accompanying Statement of Consolidated Operations (see Note D).

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