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Partners' Capital and Distributions - Distributions (Details) - USD ($) $ / shares in Units, $ in Millions |  |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
Aug. 14, 2025 | May 15, 2025 | Feb. 14, 2025 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Partners Capital and Distribution |  |  |  |  |  |  |
Distributions |  |  |  | $ 418 | $ 383 | $ 874 | $ 770
Cash Distribution | Common Units |  |  |  |  |  |  |
Partners Capital and Distribution |  |  |  |  |  |  |
Distributions |  | $ 267 | $ 267 |  |  |  |
Distribution per common unit (usd per unit) |  | $ 0.38 | $ 0.38 |  |  |  |
Cash Distribution | Common Units | Forecast |  |  |  |  |  |  |
Partners Capital and Distribution |  |  |  |  |  |  |
Distributions | $ 267 |  |  |  |  |  |
Distribution per common unit (usd per unit) | $ 0.38 |  |  |  |  |  |
Public | Cash Distribution | Common Units |  |  |  |  |  |  |
Partners Capital and Distribution |  |  |  |  |  |  |
Distributions |  | $ 179 | $ 179 |  |  |  |
Public | Cash Distribution | Common Units | Forecast |  |  |  |  |  |  |
Partners Capital and Distribution |  |  |  |  |  |  |
Distributions | $ 179 |  |  |  |  |  |
AAP | Cash Distribution | Common Units |  |  |  |  |  |  |
Partners Capital and Distribution |  |  |  |  |  |  |
Distributions |  | $ 88 | $ 88 |  |  |  |
AAP | Cash Distribution | Common Units | Forecast |  |  |  |  |  |  |
Partners Capital and Distribution |  |  |  |  |  |  |
Distributions | $ 88 |  |  |  |  |  |

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