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Partners' Capital and Distributions - Distributions (Details) - USD ($) $ / shares in Units, $ in Millions |  |  |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | --- | ---
Nov. 14, 2023 | Aug. 14, 2023 | May 15, 2023 | Feb. 14, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Partners Capital and Distribution |  |  |  |  |  |  |  |
Distributions paid |  |  |  |  | $ 336 | $ 274 | $ 982 | $ 775
Cash Distribution | Common Units |  |  |  |  |  |  |  |
Partners Capital and Distribution |  |  |  |  |  |  |  |
Distributions paid |  | $ 187 | $ 187 | $ 187 |  |  |  |
Cash distribution per common unit, paid (usd per unit) |  | $ 0.2675 | $ 0.2675 | $ 0.2675 |  |  |  |
Forecast | Cash Distribution | Common Units |  |  |  |  |  |  |  |
Partners Capital and Distribution |  |  |  |  |  |  |  |
Distributions paid | $ 187 |  |  |  |  |  |  |
Cash distribution per common unit, paid (usd per unit) | $ 0.2675 |  |  |  |  |  |  |
Public | Cash Distribution | Common Units |  |  |  |  |  |  |  |
Partners Capital and Distribution |  |  |  |  |  |  |  |
Distributions paid |  | $ 123 | $ 122 | $ 122 |  |  |  |
Public | Forecast | Cash Distribution | Common Units |  |  |  |  |  |  |  |
Partners Capital and Distribution |  |  |  |  |  |  |  |
Distributions paid | $ 125 |  |  |  |  |  |  |
AAP | Cash Distribution | Common Units |  |  |  |  |  |  |  |
Partners Capital and Distribution |  |  |  |  |  |  |  |
Distributions paid |  | $ 64 | $ 65 | $ 65 |  |  |  |
AAP | Forecast | Cash Distribution | Common Units |  |  |  |  |  |  |  |
Partners Capital and Distribution |  |  |  |  |  |  |  |
Distributions paid | $ 62 |  |  |  |  |  |  |

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