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SUPPLEMENTARY PENSION PLANS (Details 1) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
(iv) Financed position: |  |
Remeasurement effects recognized in Other Comprehensive Income | R$ 87,297 | R$ 80,361
Retirement Benefits [Member] |  |
(i) Projected benefit obligations: |  |
At the beginning of the year | 2,794,954 | 2,740,903
Cost of current service | 1,179 | 284
Interest cost | 249,162 | 252,694
Participant’s contribution | 465 | 473
Actuarial gain/(loss) (1) | (218,019) | 69,201
Transfers | (278) | 16,460
Past service cost - plan changes |  | (3,814)
Early elimination of obligations | (1,284) | (12,647)
Benefit paid | (269,280) | (268,600)
At the end of the year | 2,556,899 | 2,794,954
(ii) Plan assets at fair value: |  |
At the beginning of the year | 2,402,006 | 2,467,755
Expected earnings | 214,092 | 227,227
Actuarial gain/(loss) (1) | (125,943) | (56,554)
Contributions received: |  |
- Employer | 195,343 | 31,526
- Employees | 465 | 473
Transfers | (134) | 16,460
Early elimination of obligations |  | (16,460)
Benefit paid | (269,281) | (268,421)
At the end of the year | 2,416,548 | 2,402,006
(iii) Changes in the unrecoverable surplus: |  |
At the beginning of the year | 57,939 | 60,861
Interest on the irrecoverable surplus | 5,471 | 5,644
Change in irrecoverable surplus (1) | (1,200) | (8,566)
At the end of the year | 62,210 | 57,939
(iv) Financed position: |  |
Deficit plans (2) | 202,561 | 450,887
Net balance | 202,561 | 450,887
Other Post Employment Benefits [Member] |  |
(i) Projected benefit obligations: |  |
At the beginning of the year | 857,347 | 800,535
Cost of current service |  |
Interest cost | 78,223 | 75,344
Participant’s contribution |  |
Actuarial gain/(loss) (1) | (65,504) | 28,890
Transfers |  |
Past service cost - plan changes |  |
Early elimination of obligations |  |
Benefit paid | (50,341) | (47,422)
At the end of the year | 819,725 | 857,347
(ii) Plan assets at fair value: |  |
At the beginning of the year |  |
Expected earnings |  |
Actuarial gain/(loss) (1) |  |
Contributions received: |  |
- Employer |  |
- Employees |  |
Transfers |  |
Early elimination of obligations |  |
Benefit paid |  |
At the end of the year |  |
(iii) Changes in the unrecoverable surplus: |  |
At the beginning of the year |  |
Interest on the irrecoverable surplus |  |
Change in irrecoverable surplus (1) |  |
At the end of the year |  |
(iv) Financed position: |  |
Deficit plans (2) | 819,725 | 857,347
Net balance | R$ 819,725 | R$ 857,347

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