Material accounting policies (Narrative) (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Equipment [Member] | |
| Disclosure of detailed information about property, plant and equipment [line items] | |
| Useful lives or depreciation rates, property, plant and equipment | straight-line over 1 to 20 years |
| Other plant assets [Member] | |
| Disclosure of detailed information about property, plant and equipment [line items] | |
| Useful lives or depreciation rates, property, plant and equipment | straight-line over 1 to 20 years/unit-of-production |
| ROU Assets [Member] | |
| Disclosure of detailed information about property, plant and equipment [line items] | |
| Useful lives or depreciation rates, property, plant and equipment | straight-line over 1 to 20 years |