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Partners' Capital and Distributions - Distributions to Noncontrolling Interests (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Partners Capital and Distribution [Line Items] |  |  |  |
Distributions paid |  | $ 1,330 | $ 1,083 | $ 729
Noncontrolling Interests |  |  |  |
Partners Capital and Distribution [Line Items] |  |  |  |
Distributions paid |  | 333 | 298 | 14
Cash Distribution | Noncontrolling Interests | Consolidated Joint Venture Entities |  |  |  |
Partners Capital and Distribution [Line Items] |  |  |  |
Distributions paid |  | 333 | 298 | 14
Cash Distribution | Noncontrolling Interests | Plains Oryx Permian Basin LLC |  |  |  |
Partners Capital and Distribution [Line Items] |  |  |  |
Distributions paid | $ 54 | 249 | 273 |
Cash Distribution | Noncontrolling Interests | Cactus II Pipeline LLC |  |  |  |
Partners Capital and Distribution [Line Items] |  |  |  |
Distributions paid |  | 63 | 4 |
Cash Distribution | Noncontrolling Interests | Red River |  |  |  |
Partners Capital and Distribution [Line Items] |  |  |  |
Distributions paid |  | $ 21 | $ 21 | $ 14

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