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Partners' Capital and Distributions - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions |  |  | 3 Months Ended |
--- | --- | --- | --- | ---
Feb. 14, 2025 | Jan. 31, 2025 | Mar. 31, 2025 | Jan. 30, 2025
Partners' Capital and Distributions [Line Items] |  |  |  |
Repurchase of Series A preferred units (Note 6) |  |  | $ 333 |
Number of days after end of quarter within which distributions must be paid to unitholders |  |  | 45 days |
Permian JV |  |  |  |
Partners' Capital and Distributions [Line Items] |  |  |  |
Noncontrolling interests in subsidiaries (as a percent) |  |  | 35.00% |
Cactus II |  |  |  |
Partners' Capital and Distributions [Line Items] |  |  |  |
Noncontrolling interests in subsidiaries (as a percent) |  |  | 30.00% |
Red River |  |  |  |
Partners' Capital and Distributions [Line Items] |  |  |  |
Noncontrolling interests in subsidiaries (as a percent) |  |  | 33.00% |
Series A Preferred Units |  |  |  |
Partners' Capital and Distributions [Line Items] |  |  |  |
Repurchase and cancellation of common units under the common equity repurchase program (units) |  | 12,700,000 | 12,678,560 |
Shares issued, price per share (in dollars per unit) |  | $ 26.25 |  |
Repurchase of Series A preferred units (Note 6) |  | $ 333 |  |
Preferred Stock Redemption Premium |  |  | $ 43 |
Series A Preferred Units | Other current liabilities |  |  |  |
Partners' Capital and Distributions [Line Items] |  |  |  |
Amount accrued to distributions payable |  |  |  | $ 10
Series A Preferred Units | Cash Distribution |  |  |  |
Partners' Capital and Distributions [Line Items] |  |  |  |
Cash Distribution | $ 36 | $ 10 |  |

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