Provisions for retirement benefit obligations - Principal actuarial assumptions (Details) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Provisions for retirement benefit obligations. | |||
| Retirement age | 65 years | 65 years | 65 years |
| Payroll taxes | 41.41% | 41.41% | 41.41% |
| Salary growth rate | 2.00% | 2.00% | 2.00% |
| Discount rate | 3.95% | 3.40% | 3.20% |
| Threshold minimum maturity term for Eurozone AA rated corporate bonds | 10 years | ||
| X | ||||||||||
- Definition The discount rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [domain]] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The expected rate of salary increases used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit plans [domain]; Defined benefit obligation, at present value; Actuarial assumptions [domain]] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The retirement age used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [domain]] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The expected rate of payroll taxes used as a significant actuarial assumption to determine the present value of a defined benefit obligation. No definition available.
|
| X | ||||||||||
- Definition Threshold minimum maturity term of the investments, considered for determination of discount rate for actuarial assumptions used to determine the present value of a defined benefit obligation. No definition available.
|