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FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT - Fair Value Maturity Schedule (net amounts) (Details) - BRL (R$) R$ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Derivative fair value asset (liability), net | R$ (6,567,720) | R$ 1,994,382
2025 |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Derivative fair value asset (liability), net | (1,753,846) | 2,097,763
2026 |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Derivative fair value asset (liability), net | (1,699,768) | 233,072
2027 |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Derivative fair value asset (liability), net | (36,905) | (574,871)
More than 3 years |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Derivative fair value asset (liability), net | R$ (3,077,201) | R$ 238,418

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