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Acquisitions, Divestitures and Other Transactions - Partners' Capital (Details) - Plains Oryx Permian Basin LLC - Joint Venture Transaction - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021
Business Acquisition [Line Items] |  |  |
Partners’ capital, excluding noncontrolling interests |  | $ (26) | $ 3,256
Noncontrolling Interests |  |  |
Business Acquisition [Line Items] |  |  |
Partners’ capital, excluding noncontrolling interests |  | (16) | 2,651
Partners’ Capital Excluding Noncontrolling Interests |  |  |
Business Acquisition [Line Items] |  |  |
Partners’ capital, excluding noncontrolling interests | $ 595 | $ (10) | $ 605
Oryx Midstream Holdings LLC | Noncontrolling Interests |  |  |
Business Acquisition [Line Items] |  |  |
Noncontrolling interests | 2,635 |  |
Oryx Midstream Holdings LLC |  |  |
Business Acquisition [Line Items] |  |  |
Partners’ capital, excluding noncontrolling interests | $ 3,230 |  |

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