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Employee Benefit Obligations | 6 Months Ended
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Jun. 30, 2017
Employee Benefit Obligations |
Employee Benefit Obligations | 13. Employee Benefit Obligations
|  | June 30, |  | December 31,
($ in millions) |  | 2017 |  | 2016
Underfunded defined benefit pension liabilities |  | $ | 897 |  | $ | 963
Less: Current portion |  |  | (26) |  |  | (25)
Long-term defined benefit pension liabilities |  |  | 871 |  |  | 938
Retiree medical and other postemployment benefits |  |  | 217 |  |  | 226
Deferred compensation plans |  |  | 280 |  |  | 272
Other |  |  | 61 |  |  | 61
|  | $ | 1,429 |  | $ | 1,497
Components of net periodic benefit cost associated with the company’s defined benefit pension plans were:
|  | Three Months Ended June 30,
|  | 2017 |  | 2016
($ in millions) |  | U.S. |  | Foreign |  | Total |  | U.S. |  | Foreign |  | Total
Ball-sponsored plans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 12 |  | $ | 4 |  | $ | 16 |  | $ | 12 |  | $ | 3 |  | $ | 15
Interest cost |  |  | 33 |  |  | 22 |  |  | 55 |  |  | 15 |  |  | 5 |  |  | 20
Expected return on plan assets |  |  | (33) |  |  | (26) |  |  | (59) |  |  | (18) |  |  | (5) |  |  | (23)
Recognized net actuarial loss |  |  | 9 |  |  | 1 |  |  | 10 |  |  | 8 |  |  | 1 |  |  | 9
Curtailment and settlement losses (gains) including special termination benefits |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 80 | (a) |  | 80
Net periodic benefit cost for Ball sponsored plans |  |  | 21 |  |  | 1 |  |  | 22 |  |  | 17 |  |  | 84 |  |  | 101
Net periodic benefit cost for multi-employer plans |  |  | 1 |  |  | — |  |  | 1 |  |  | — |  |  | — |  |  | —
Total net periodic benefit cost |  | $ | 22 |  | $ | 1 |  | $ | 23 |  | $ | 17 |  | $ | 84 |  | $ | 101
| (a) |  | Amount relates to plans transferred to the Divestment Business.
|  | Six Months Ended June 30, |
|  | 2017 |  | 2016 |
($ in millions) |  | U.S. |  | Foreign |  | Total |  | U.S. |  | Foreign |  | Total |
Ball-sponsored plans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 24 |  | $ | 8 |  | $ | 32 |  | $ | 24 |  | $ | 6 |  | $ | 30 |
Interest cost |  |  | 66 |  |  | 44 |  |  | 110 |  |  | 30 |  |  | 9 |  |  | 39 |
Expected return on plan assets |  |  | (66) |  |  | (52) |  |  | (118) |  |  | (36) |  |  | (9) |  |  | (45) |
Recognized net actuarial loss |  |  | 18 |  |  | 2 |  |  | 20 |  |  | 15 |  |  | 3 |  |  | 18 |
Curtailment and settlement losses (gains) including special termination benefits |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 80 | (a) |  | 80 |
Net periodic benefit cost for Ball sponsored plans |  |  | 42 |  |  | 2 |  |  | 44 |  |  | 33 |  |  | 89 |  |  | 122 |
Net periodic benefit cost for multi-employer plans |  |  | 2 |  |  | — |  |  | 2 |  |  | 1 |  |  | — |  |  | 1 |
Total net periodic benefit cost |  | $ | 44 |  | $ | 2 |  | $ | 46 |  | $ | 34 |  | $ | 89 |  | $ | 123 |
| (a) |  | Amount relates to plans transferred to the Divestment Business.
Contributions to the company’s defined benefit pension plans, not including unfunded German, Swedish and certain U.S. plans, were $110 million in the first six months of 2017 compared to $28 million in the first six months of 2016 and are expected to be in the range of $190 million for the full year of 2017. This estimate may change based on any changes to the U.S. Pension Protection Act and actual plan asset performance, among other factors. Included in the 2017 contributions were contributions to acquired Rexam defined benefit pension plans. Payments to participants in the unfunded German, Swedish and certain U.S. plans were $12 million in the first six months of 2017 compared to $9 million in the first six months of 2016 and are expected to be approximately $20 million to $24 million for the full year of 2017.

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- Definition The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans. + References No definition available. + Details
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