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Investments in Unconsolidated Entities - Narrative (Details) $ in Millions | 3 Months Ended | 12 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2022 USD ($) pipeline | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Nov. 30, 2024 | Sep. 30, 2023 | Nov. 30, 2022 | Oct. 31, 2022 | Sep. 30, 2022 | Jul. 31, 2022 | Jun. 30, 2022
Investments in Unconsolidated Entities |  |  |  |  |  |  |  |  |  |  |
Gains (losses) on investments in unconsolidated entities, net |  | $ 15 | $ 28 | $ 346 |  |  |  |  |  |  |
Capital contributions to equity method investees excluding capitalized interest |  | 4 | 29 | $ 13 |  |  |  |  |  |  |
Amount by which investments in unconsolidated entities exceeded our share of the underlying equity in the net assets |  | $ 213 | $ 229 |  |  |  |  |  |  |  |
Wink to Webster Pipeline LLC (“W2W Pipeline”) |  |  |  |  |  |  |  |  |  |  |
Investments in Unconsolidated Entities |  |  |  |  |  |  |  |  |  |  |
Ownership interest in unconsolidated entity |  | 17.00% |  |  |  |  |  |  |  |  |
Saddlehorn Pipeline Company, LLC (“Saddlehorn”) |  |  |  |  |  |  |  |  |  |  |
Investments in Unconsolidated Entities |  |  |  |  |  |  |  |  |  |  |
Ownership interest in unconsolidated entity |  | 40.00% |  |  |  |  |  |  |  |  |
OMOG JV LLC (“OMOG”) |  |  |  |  |  |  |  |  |  |  |
Investments in Unconsolidated Entities |  |  |  |  |  |  |  |  |  |  |
Ownership interest in unconsolidated entity |  |  |  |  |  |  |  |  | 40.00% |  |
OMOG JV LLC (“OMOG”) | Acquisition of Additional Interest in Exchange for Contribution of Pipeline Assets |  |  |  |  |  |  |  |  |  |  |
Investments in Unconsolidated Entities |  |  |  |  |  |  |  |  |  |  |
Number of pipelines or partial pipelines contributed | pipeline | 2 |  |  |  |  |  |  |  |  |  |
Ownership interest in unconsolidated entity | 57.00% |  |  | 57.00% |  |  |  |  |  |  |
Gains (losses) on investments in unconsolidated entities, net | $ (25) |  |  |  |  |  |  |  |  |  |
Advantage Pipeline Holdings LLC |  |  |  |  |  |  |  |  |  |  |
Investments in Unconsolidated Entities |  |  |  |  |  |  |  |  |  |  |
Ownership interest in unconsolidated entity |  |  |  |  |  |  |  |  |  |  | 50.00%
Midway Pipeline LLC |  |  |  |  |  |  |  |  |  |  |
Investments in Unconsolidated Entities |  |  |  |  |  |  |  |  |  |  |
Additional interest acquired (as a percent) |  | 50.00% |  |  |  |  |  |  |  |  |
Business combination, step acquisition, equity interest in acquire (as a percent) |  |  |  |  | 50.00% |  |  |  |  |  |
OMOG JV LLC (“OMOG”) |  |  |  |  |  |  |  |  |  |  |
Investments in Unconsolidated Entities |  |  |  |  |  |  |  |  |  |  |
Additional interest acquired (as a percent) |  |  |  |  |  | 43.00% |  |  |  |  |
Advantage Pipeline Holdings LLC |  |  |  |  |  |  |  |  |  |  |
Investments in Unconsolidated Entities |  |  |  |  |  |  |  |  |  |  |
Additional interest acquired (as a percent) |  |  |  |  |  |  |  |  |  | 50.00% |
Cactus II Pipeline LLC |  |  |  |  |  |  |  |  |  |  |
Investments in Unconsolidated Entities |  |  |  |  |  |  |  |  |  |  |
Additional interest acquired (as a percent) |  |  |  |  |  |  | 5.00% |  |  |  |
Business combination, step acquisition, equity interest in acquire (as a percent) |  |  |  |  |  |  |  | 65.00% |  |  |

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