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FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT - Fair value by maturity schedule (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Financial Instruments and Risks    
Derivative fair value asset (liability), net R$ 26,954 R$ (6,452,388)
Up to 1 year    
Financial Instruments and Risks    
Derivative fair value asset (liability), net 2,380,812 (1,093,198)
1 - 2 years    
Financial Instruments and Risks    
Derivative fair value asset (liability), net 297,156 (282,499)
2 - 3 years    
Financial Instruments and Risks    
Derivative fair value asset (liability), net (1,225,193) (759,082)
3 - 4 years    
Financial Instruments and Risks    
Derivative fair value asset (liability), net   (2,096,449)
More than 3 years    
Financial Instruments and Risks    
Derivative fair value asset (liability), net R$ (1,425,821)  
More than 4 years    
Financial Instruments and Risks    
Derivative fair value asset (liability), net   R$ (2,221,160)