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Investments (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Mar. 31, 2019
FTS International, Inc. |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Book value |  | $ 23 |  |
Other than temporary impairment |  | $ 23 |  |
JWH Midstream LLC (JWH) |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Business acquisition, percent acquired |  |  |  | 50.00%
Equity method investments |  |  |  | $ 17
Payments to terminate involvement in partnership |  |  | $ 7 |
Impairment expense | $ 23 |  |  |

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