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Equity - Noncontrolling Interests Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Noncontrolling Interest [Line Items] |  |  |
Noncontrolling interests | $ 37 | $ 41 |
Net income attributable to noncontrolling interests | $ 0 | $ 2 | $ 3
Noncontrolling interest, chesapeake granite wash trust |  |  |
Noncontrolling Interest [Line Items] |  |  |
Common unit, outstanding (in units) | 23,750,000 |  |
Beneficial interest percent | 51.00% |  |

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