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Retirement Plans | 6 Months Ended
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Jun. 30, 2019
Compensation And Retirement Disclosure [Abstract] |
Retirement Plans |
1 6. | Retirement Plans
The following table presents the components of net periodic benefit cost for Devon’s pension benefits plan. There was $1 million of net periodic benefit credit for postretirement benefit plans for all periods presented below.
|  | Pension Benefits |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Service cost |  | $ | 2 |  |  | $ | 3 |  |  | $ | 3 |  |  | $ | 5 |
Interest cost |  |  | 8 |  |  |  | 10 |  |  |  | 17 |  |  |  | 20 |
Expected return on plan assets |  |  | (9 | ) |  |  | (14 | ) |  |  | (19 | ) |  |  | (27 | )
Amortization of prior service cost (1) |  |  | — |  |  |  | 1 |  |  |  | 1 |  |  |  | 1 |
Net actuarial loss (1) |  |  | 3 |  |  |  | 3 |  |  |  | 6 |  |  |  | 7 |
Net periodic benefit cost (2) |  | $ | 4 |  |  | $ | 3 |  |  | $ | 8 |  |  | $ | 6 |
(1) | These net periodic benefit costs were reclassified out of other comprehensive earnings.
(2) | The service cost component of net periodic benefit cost is included in G&A expense and the remaining components of net periodic benefit costs are included in other expenses in the accompanying consolidated comprehensive statements of earnings.

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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