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Partners' Capital - Cash Distributions (Details) - USD ($) $ / shares in Units, $ in Millions |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 19, 2026 | Nov. 19, 2025 | Aug. 19, 2025 | May 20, 2025 | Feb. 19, 2025 | Nov. 19, 2024 | Aug. 19, 2024 | May 20, 2024 | Feb. 20, 2024 | Nov. 20, 2023 | Aug. 22, 2023 | May 22, 2023 | Feb. 21, 2023 | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Distribution Made To Limited Partner [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Per Unit Distribution (in dollars per unit) |  | $ 0.9202 | $ 0.9088 | $ 0.8976 | $ 0.8865 | $ 0.8756 | $ 0.8756 | $ 0.8756 | $ 0.8420 | $ 0.8420 | $ 0.8420 | $ 0.8420 | $ 0.8255 |  |  |
Cash distributions to unitholders, including incentive distributions |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 657 | $ 566 | $ 371
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distribution Made To Limited Partner [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Per Unit Distribution (in dollars per unit) | $ 0.9317 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
General Partner [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distribution Made To Limited Partner [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash distributions to unitholders, including incentive distributions |  | $ 42 | $ 41 | $ 39 | $ 37 | $ 36 | $ 36 | $ 36 | $ 19 | $ 19 | $ 19 | $ 19 | $ 18 |  |  |
General Partner [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distribution Made To Limited Partner [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash distributions to unitholders, including incentive distributions | $ 60 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Units [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distribution Made To Limited Partner [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash distributions to unitholders, including incentive distributions |  | 126 | 124 | 122 | 121 | 119 | 119 | 119 | 71 | 71 | 71 | 71 | 69 |  |  |
Common Units [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distribution Made To Limited Partner [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash distributions to unitholders, including incentive distributions | 128 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class D Common Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distribution Made To Limited Partner [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash distributions to unitholders, including incentive distributions |  | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 |  |  |
Class D Common Units | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distribution Made To Limited Partner [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash distributions to unitholders, including incentive distributions | $ 48 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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