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FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT - Fair value by maturity schedule (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Financial Instruments and Risks    
Derivative fair value asset (liability), net R$ 1,994,382 R$ 26,954
1 - 2 years    
Financial Instruments and Risks    
Derivative fair value asset (liability), net 2,097,763 2,380,812
2 - 3 years    
Financial Instruments and Risks    
Derivative fair value asset (liability), net 233,073 297,156
3 - 4 years    
Financial Instruments and Risks    
Derivative fair value asset (liability), net (574,871) (1,225,193)
More than 3 years    
Financial Instruments and Risks    
Derivative fair value asset (liability), net R$ 238,417 R$ (1,425,821)