Summary Of Accounting Policies (Details) |
Dec. 31, 2025 |
|---|---|
| Investments in refinery, chemical process, and lubes basestock manufacturing equipment | |
| Property, Plant and Equipment [Line Items] | |
| Property, plant and equipment, useful life | 25 years |
| Service station buildings and fixed improvements | |
| Property, Plant and Equipment [Line Items] | |
| Property, plant and equipment, useful life | 20 years |