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Pension and Other Postretirement Benefit Plans | 9 Months Ended
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Sep. 30, 2019
Compensation And Retirement Disclosure [Abstract] |
Pension and Other Postretirement Benefit Plans | 13. Pension and Other Postretirement Benefit Plans Net pension cost (credit) for the Schlumberger pension plans included the following components:
(Stated in millions) |
| Third Quarter |  |  | Nine Months |
| 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
| US |  |  | Int'l |  |  | US |  |  | Int'l |  |  | US |  |  | Int'l |  |  | US |  |  | Int'l |
Service cost | $ | 14 |  |  | $ | 32 |  |  | $ | 14 |  |  | $ | 35 |  |  | $ | 41 |  |  | $ | 96 |  |  | $ | 44 |  |  | $ | 105 |
Interest cost |  | 45 |  |  |  | 82 |  |  |  | 41 |  |  |  | 77 |  |  |  | 136 |  |  |  | 248 |  |  |  | 125 |  |  |  | 229 |
Expected return on plan assets |  | (58 | ) |  |  | (148 | ) |  |  | (61 | ) |  |  | (149 | ) |  |  | (173 | ) |  |  | (446 | ) |  |  | (186 | ) |  |  | (442 | )
Amortization of prior service cost |  | 3 |  |  |  | 2 |  |  |  | 3 |  |  |  | 3 |  |  |  | 7 |  |  |  | 6 |  |  |  | 9 |  |  |  | 8 |
Amortization of net loss |  | 7 |  |  |  | 16 |  |  |  | 12 |  |  |  | 35 |  |  |  | 23 |  |  |  | 47 |  |  |  | 36 |  |  |  | 105 |
| $ | 11 |  |  | $ | (16 | ) |  | $ | 9 |  |  | $ | 1 |  |  | $ | 34 |  |  | $ | (49 | ) |  | $ | 28 |  |  | $ | 5 |
The net periodic benefit credit for the Schlumberger US postretirement medical plan included the following components:
(Stated in millions) |
| Third Quarter |  |  | Nine Months |
| 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Service cost | $ | 8 |  |  | $ | 8 |  |  | $ | 23 |  |  | $ | 24 |
Interest cost |  | 12 |  |  |  | 11 |  |  |  | 36 |  |  |  | 33 |
Expected return on plan assets |  | (16 | ) |  |  | (15 | ) |  |  | (49 | ) |  |  | (47 | )
Amortization of prior service credit |  | (7 | ) |  |  | (7 | ) |  |  | (21 | ) |  |  | (21 | )
| $ | (3 | ) |  | $ | (3 | ) |  | $ | (11 | ) |  | $ | (11 | )

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- References No definition available. + Details
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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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