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Income (loss) Per Share | 3 Months Ended
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Mar. 31, 2021
Earnings Per Share [Abstract] |
Income (loss) Per Share | 3. Income (loss) Per Share The following is a reconciliation from basic income (loss) per share of Schlumberger to diluted income (loss) per share of Schlumberger:
(Stated in millions, except per share amounts) |
| 2021 |  |  | 2020 |
| Schlumberger Net Income |  |  | Average Shares Outstanding |  |  | Income per Share |  |  | Schlumberger Net Loss |  |  | Average Shares Outstanding |  |  | Loss per Share |
First Quarter |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic | $ | 299 |  |  |  | 1,398 |  |  | $ | 0.21 |  |  | $ | (7,376 | ) |  |  | 1,387 |  |  | $ | (5.32 | )
Unvested restricted stock |  | - |  |  |  | 21 |  |  |  |  |  |  |  | - |  |  |  | - |  |  |  |  |
Diluted | $ | 299 |  |  |  | 1,419 |  |  | $ | 0.21 |  |  | $ | (7,376 | ) |  |  | 1,387 |  |  | $ | (5.32 | )
The number of outstanding options to purchase shares of Schlumberger common stock that were not included in the computation of diluted loss per share, because to do so would have had an antidilutive effect, was as follows:
(Stated in millions) |
| Three Months Ended March 31, |
| 2021 |  |  | 2020 |
Employee stock options |  | 44 |  |  |  | 51 |
Unvested restricted stock |  | - |  |  |  | 16 |

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