Pension plan and other post-employment benefits (Details 6) |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Notes and other explanatory information [abstract] | |
| Nominal discount rate for the actuarial obligation: | PBS South: 10.05% / 7.29%; PBS Nordeste: 10.92% / 7.17%; CA: 11.00% / 7.25%; PBS-A: 11.29% / 7.53%; AES: 10.88% / 7.13%; PAMEC: 11.17% / 7.41%; FIBER: 11.85% / 7.10% |
| Salary growth rate - nominal: | PBS Nordeste: 3.50% / 0.00% PBS Sul, CA, PBS-A, AES, PAMEC and FIBER: Not applicable |
| Biometric general mortality table: | PBS, CA, PAMEC and FIBER: AT-2000 segregated per sex, decreased by 10%; PBS-A: AT-2000, segregated by gender; AES: Male AT-2000, attenuated by 10% |
| Biometric table of new disability benefit vested: | PBS and FIBER: Álvaro Vindas; CA, PBS-A, AES and PAMEC: Not applicable |
| Expected turnover rate: | PBS: Null; CA, PBS-A, AES and PAMEC: Not applicable; FIBER: 0.15/(length of service + 1), being null as of 50 years old |
| Probability of retirement: | PBS and FIBER: 100% at 1st eligibility; CA, PBS-A, AES and PAMEC: Not applicable |
| Estimated long-term inflation rate | 3.50% p.a. |
| Determination method | Projected Unit Credit Method |