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FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT - Fair value by maturity schedule (Details) - BRL (R$)
R$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Financial Instruments and Risks    
Derivative fair value asset (liability), net R$ 3,261,071 R$ 26,954
2023    
Financial Instruments and Risks    
Derivative fair value asset (liability), net 2,413,838 2,380,812
2024    
Financial Instruments and Risks    
Derivative fair value asset (liability), net 1,785,080 297,156
2025    
Financial Instruments and Risks    
Derivative fair value asset (liability), net (477,814) (1,225,193)
2026 onwards    
Financial Instruments and Risks    
Derivative fair value asset (liability), net R$ (460,033) R$ (1,425,821)