OPERATING EXPENSES - Provisions or Operational Reversals (Details) - BRL (R$) R$ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| OPERATING PROVISIONS (REVERSALS) | |||
| Reversal (provision) for litigation | R$ (884,649) | R$ 160,290 | R$ 1,246,332 |
| Onerous Contracts (see note 22) | 288,120 | 386,693 | (862,029) |
| Reversals (Constitutions) on estimated losses on investments (see note 16) | 208,796 | 250,069 | 175,549 |
| Refunds to the RGR Fund | 0 | 0 | (558,360) |
| Implementation of Actions - Compulsory Loan (see note 28) | (201,303) | (70,207) | 38,987 |
| Actuarial Costs/Expenses | (345,859) | (490,053) | (559,949) |
| ECL - Consumers and resellers (see note 9) | (217,268) | (391,334) | (466,598) |
| ECL - Other credits | 133,257 | (168,906) | 39,906 |
| ECL - Financing and loans (see note 13) | 166,125 | (14,553) | (21,618) |
| Impairment (see note 19) | 226,734 | 533,774 | (956,492) |
| Others | (9,690) | 30,827 | 147,685 |
| Operating Charges (Reversals), Net | R$ (635,737) | R$ 226,600 | R$ (1,776,587) |