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Partners' Capital and Distributions - Preferred Unit Distributions (Details) - USD ($) $ / shares in Units, $ in Millions |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Feb. 18, 2025 | Feb. 14, 2025 | Jan. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Jan. 30, 2025
Series A Preferred Units | Other current liabilities |  |  |  |  |  |  |
Partners Capital and Distribution [Line Items] |  |  |  |  |  |  |
Dividends payable |  |  |  | $ 36 |  |  |
Series A Preferred Units | Other current liabilities | Subsequent Event |  |  |  |  |  |  |
Partners Capital and Distribution [Line Items] |  |  |  |  |  |  |
Dividends payable |  |  |  |  |  |  | $ 10
Series B Preferred Units | Other current liabilities |  |  |  |  |  |  |
Partners Capital and Distribution [Line Items] |  |  |  |  |  |  |
Dividends payable |  |  |  | 9 |  |  |
Cash Distribution | Series A Preferred Units |  |  |  |  |  |  |
Partners Capital and Distribution [Line Items] |  |  |  |  |  |  |
Cash distribution |  |  |  | $ 175 | $ 166 | $ 149 |
Distribution per unit (in dollars per unit) |  |  |  | $ 2.46 | $ 2.34 | $ 2.10 |
Cash Distribution | Series A Preferred Units | Subsequent Event |  |  |  |  |  |  |
Partners Capital and Distribution [Line Items] |  |  |  |  |  |  |
Cash distribution |  | $ 36 | $ 10 |  |  |  |
Cash Distribution | Series B Preferred Units |  |  |  |  |  |  |
Partners Capital and Distribution [Line Items] |  |  |  |  |  |  |
Cash distribution |  |  |  | $ 79 | $ 75 | $ 49 |
Distribution per unit (in dollars per unit) |  |  |  | $ 98.14 | $ 93.43 | $ 61.25 |
Cash Distribution | Series B Preferred Units | Subsequent Event |  |  |  |  |  |  |
Partners Capital and Distribution [Line Items] |  |  |  |  |  |  |
Cash distribution | $ 18 |  |  |  |  |  |
Distribution per unit (in dollars per unit) | $ 22.73 |  |  |  |  |  |

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