Retirement obligations - Disclosure of Assumptions Used to Measure Retirement Benefits (Details) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Disclosure of defined benefit plans [table] | ||
| Social security contribution rate | 47.00% | 47.00% |
| Discount rate | 3.96% | 3.56% |
| Staff turnover | 8.40% | 8.40% |
| Duration | 20 years | 20 years |
| Management | ||
| Disclosure of defined benefit plans [table] | ||
| Retirement assumptions | 66 years | 66 years |
| Non-management | ||
| Disclosure of defined benefit plans [table] | ||
| Retirement assumptions | 64 years | 64 years |
| Executive | ||
| Disclosure of defined benefit plans [table] | ||
| Salary increase rate (including inflation) | 4.00% | 4.00% |
| Non-executive | ||
| Disclosure of defined benefit plans [table] | ||
| Salary increase rate (including inflation) | 3.50% | 3.50% |