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Loss on impairment of investments in associated companies (Tables) | 12 Months Ended
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Dec. 31, 2020
Equity Method Investments and Joint Ventures [Abstract] |
Schedule of impairment on marketable securities and investments | We have recognized the following impairment of our investments in associated companies in the Consolidated Statements of Operations within "Loss on impairment of investments".
| Successor |  |  | Predecessor
(In $ millions) | Year ended December 31, 2020 |  | Year ended December 31, 2019 |  | Period from July 2, 2018 through December 31, 2018 |  |  | Period from January 1, 2018 through July 1, 2018
Impairments of Investment in associated companies and joint ventures |  |  |  |  |  |  |  |
Seadrill Partners - Direct ownership investments | 47 |  |  | 248 |  |  | — |  |  |  | — |
Seadrill Partners - Seadrill member interest and IDRs | — |  |  | 54 |  |  | — |  |  |  | — |
Total impairment of investments in associated companies and joint ventures | 47 |  |  | 302 |  |  | — |  |  |  | — |
Our share in results of our associated companies (net of tax) were as follows:
| Successor |  |  | Predecessor
(In $ millions) | Year ended December 31, 2020 |  | Year ended December 31, 2019 |  | Period from July 2, 2018 through December 31, 2018 |  |  | Period from January 1, 2018 through July 1, 2018
Seadrill Partners - Direct ownership interests | (75) |  |  | (107) |  |  | (82) |  |  |  | 77 |
Seadrill Partners - Subordinated units | — |  |  | (17) |  |  | (20) |  |  |  | 22 |
Seabras Sapura | 20 |  |  | 29 |  |  | 24 |  |  |  | 46 |
SeaMex | (22) |  |  | (19) |  |  | (12) |  |  |  | 4 |
Sonadrill | (2) |  |  | (1) |  |  | — |  |  |  | — |
Gulfdrill | 2 |  |  | — |  |  | — |  |  |  | — |
Total share in results from associated companies (net of tax) | (77) |  |  | (115) |  |  | (90) |  |  |  | 149 |

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- Definition Tabular disclosure of the share of recorded equity in the statutory accounts of the entity's equity method investees. + References No definition available. + Details
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- References No definition available. + Details
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