Accounting policies (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Plant and equipment | Bottom of range | |
| Accounting policies | |
| Estimated, useful life | 18 years |
| Plant and equipment | Top of range | |
| Accounting policies | |
| Estimated, useful life | 100 years |
| Pipelines, networks, and lines | Bottom of range | |
| Accounting policies | |
| Estimated, useful life | 16 years |
| Pipelines, networks, and lines | Top of range | |
| Accounting policies | |
| Estimated, useful life | 63 years |
| Buildings | Bottom of range | |
| Accounting policies | |
| Estimated, useful life | 18 years |
| Buildings | Top of range | |
| Accounting policies | |
| Estimated, useful life | 55 years |
| Other | Bottom of range | |
| Accounting policies | |
| Estimated, useful life | 9 years |
| Other | Top of range | |
| Accounting policies | |
| Estimated, useful life | 30 years |