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INCOME TAX AND SOCIAL CONTRIBUTION - Reconciliation of income tax and social contribution expenses (Details) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Reconciliation of expense with income tax and social contribution      
Operating income before taxes R$ 10,620,784 R$ 1,396,363 R$ 3,347,210
IRPJ and CSLL calculated at nominal rates (3,611,067) (474,763) (1,138,051)
Effects of additions and deletions:      
Equity equivalence 10,168 515,523 805,724
Revenue from Dividends/JCP     (314,694)
Tax losses offset 97,002    
Tax incentives 402,828 290,574 152,059
Unrecognized/reversed deferred taxes 623,082 (93,800) 2,885,746
Deferral Tax* (656,515) 663,640 (2,436,383)
Other permanent additions and exclusions 203,890 893,556 625,364
Total (debit) / credit of IRPJ and CSLL of transactions R$ 2,863,746 (655,050) R$ 318,961
Effective tax rate (%) of transactions 26.96%   9.53%
Constitution/reversal of tax credits R$ 2,623,716 2,343,448 R$ (376,652)
Total income tax expense (240,030) 2,998,498 R$ (695,613)
Tax Breaks 3,208,795    
Tax incentives - SUDENE and SUDAM R$ 2,473,909 R$ 4,531,938