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Partners' Capital and Distributions - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Jan. 31, 2025 | Jun. 30, 2025 | Mar. 31, 2025 | Jun. 30, 2025 | Jan. 30, 2025
Partners' Capital and Distributions [Line Items] |  |  |  |  |
Payments for repurchase of preferred stock and preference stock |  |  |  | $ 333 |
Permian JV |  |  |  |  |
Partners' Capital and Distributions [Line Items] |  |  |  |  |
Noncontrolling interests in subsidiaries (as a percent) |  | 35.00% |  | 35.00% |
Cactus II |  |  |  |  |
Partners' Capital and Distributions [Line Items] |  |  |  |  |
Noncontrolling interests in subsidiaries (as a percent) |  | 30.00% |  | 30.00% |
Red River |  |  |  |  |
Partners' Capital and Distributions [Line Items] |  |  |  |  |
Noncontrolling interests in subsidiaries (as a percent) |  | 33.00% |  | 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 |  |  |  |
Payments for repurchase of preferred stock and preference stock | $ 333 |  |  |  |
Preferred stock redemption |  | $ 0 |  | $ 43 |
Number of days after end of quarter within which distributions must be paid to unitholders |  |  |  | 45 days |
Series A Preferred Units | Other current liabilities |  |  |  |  |
Partners' Capital and Distributions [Line Items] |  |  |  |  |
Amount accrued to distributions payable |  |  |  |  | $ 10

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