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Investments in Unconsolidated Affiliates (Tables) | 12 Months Ended
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Dec. 31, 2025
Equity Method Investments and Joint Ventures [Abstract] |
Schedule of Investments in and Advances to Affiliates, Schedule of Investments | The carrying values of the Partnership’s investments in unconsolidated affiliates as of December 31, 2025 and 2024 were as follows:
|  | December 31, 2025 |  | December 31, 2024
J.C. Nolan |  | $ | 121 |  |  | $ | 123 |
ET-S Permian |  | 1,161 |  |  | 1,212 |
SARA |  | 141 |  |  | — |
Isla |  | 171 |  |  | — |
Other |  | 30 |  |  | — |
|  | $ | 1,624 |  |  | $ | 1,335 |
The following table presents equity in earnings (losses) of unconsolidated affiliates:
|  | Year Ended December 31,
|  | 2025 |  | 2024 |  | 2023
J.C. Nolan |  | $ | 7 |  |  | $ | 7 |  |  | $ | 5 |
ET-S Permian |  | 134 |  |  | 53 |  |  | — |
SARA |  | 1 |  |  | — |  |  | — |
Isla |  | 2 |  |  | — |  |  | — |
Other |  | (1) |  |  | — |  |  | — |
|  | $ | 143 |  |  | $ | 60 |  |  | $ | 5 |
The following tables present aggregated selected balance sheet and income statement data for Sunoco’s unconsolidated affiliates: J.C. Nolan, ET-S Permi an, SARA and Isla (o n a 100% basis), for all periods presented:
|  | December 31, 2025 |  | December 31, 2024
Current assets |  | $ | 511 |  |  | $ | 650 |
Property, plant and equipment, net |  | 3,912 |  |  | 3,542 |
Other assets |  | 361 |  |  | 310 |
Total assets |  | $ | 4,784 |  |  | $ | 4,502 |
Current liabilities |  | $ | 375 |  |  | $ | 477 |
Non-current liabilities |  | 159 |  |  | 49 |
Equity |  | 4,250 |  |  | 3,976 |
Total liabilities and equity |  | $ | 4,784 |  |  | $ | 4,502 |
|  | Year Ended December 31,
|  | 2025 |  | 2024 |  | 2023
Revenues |  | $ | 21,022 |  |  | $ | 8,267 |  |  | $ | 34 |
Operating income |  | 444 |  |  | 176 |  |  | 10 |
Net income |  | 437 |  |  | 176 |  |  | 10 |

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- Definition A tabular presentation of the information summarizing investments in and advances to majority-owned subsidiaries, other controlled companies, and other affiliates, as prescribed by the SEC. It reflects specified information about ownership, financial results from, and financial position in such entities. Includes the tabular presentations that disaggregate investments in and advances to majority-owned subsidiaries, other controlled companies, and other affiliates. + References No definition available. + Details
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