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Pension Plans and Postretirement Benefits | 6 Months Ended
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Jun. 30, 2012
Pension Plans and Postretirement Benefits |
Pension Plans and Postretirement Benefits | Note 10: Pension Plans and Postretirement Benefits The tables below present the components of net periodic benefit expense related to our active pension plans and postretirement benefit plans.
| Three Months Ended June 30
| 2012 |  | 2011
(in millions) |  | Pension Benefits |  | Postretirement Benefits |  |  | Pension Benefits |  |  |  | Postretirement Benefits
Service cost | $ | 31 | $ | 8 |  | $ | 27 |  |  | $ | 8
Interest cost |  | 5 |  | 8 |  |  | 3 |  |  |  | 8
Other |  | (1) |  | - |  |  | - |  |  |  | -
Total benefits expense | $ | 35 | $ | 16 |  | $ | 30 |  |  | $ | 16
| Six Months Ended June 30
| 2012 |  | 2011
(in millions) |  | Pension Benefits |  | Postretirement Benefits |  |  | Pension Benefits |  |  |  | Postretirement Benefits
Service cost | $ | 63 | $ | 16 |  | $ | 45 |  |  | $ | 15
Interest cost |  | 9 |  | 15 |  |  | 6 |  |  |  | 15
Prior service cost |  | - |  | - |  |  | - |  |  |  | (13)
Other |  | (2) |  | - |  |  | - |  |  |  | -
Total benefits expense | $ | 70 | $ | 31 |  | $ | 51 |  |  | $ | 17
In April 2012, NBCUniversal provided initial funding to its qualified defined benefit plan of $7 6 million. The expected return on the plan assets is 5%.

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