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FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT - Outstanding assets and liabilities derivatives positions (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Derivative fair value asset (liability), net R$ (6,567,720) R$ 1,994,382
Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Derivative fair value asset (liability), net (1,843,085) (486,713)
Operational Hedge    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Derivative fair value asset (liability), net (4,660,846) 2,231,475
Commodity Hedge    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Derivative fair value asset (liability), net (63,789) 249,620
Zero cost collar (U.S.$ x R$) | Operational Hedge    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 6,852,200 4,500,200
Derivative fair value asset (liability), net (4,328,970) 1,968,337
Zero cost collar (U.S.$ x R$) | Commodity Hedge    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 163,941 163,100
Derivative fair value asset (liability), net 6,097 (3,148)
NDF (R$ x US$) | Operational Hedge    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 581,000 505,000
Derivative fair value asset (liability), net (331,876) 162,776
NDF (Euro x US$) | Operational Hedge    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 262,088
Derivative fair value asset (liability), net 100,362
Swap US-CPI (US$) | Commodity Hedge    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 138,439 131,510
Derivative fair value asset (liability), net (80,759) 230,471
Swap VLSFO/Brent | Commodity Hedge    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 39,706 142,794
Derivative fair value asset (liability), net 10,873 22,297
Derivative Assets | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Derivative fair value asset (liability), net 3,594,291 1,529,543
Derivative Assets | Swap CDI x Fixed (US$) | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 4,748,394 3,898,011
Derivative fair value asset (liability), net 1,482,759 223,776
Derivative Assets | Swap Pre-Fixed to US$ | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 738,800
Derivative fair value asset (liability), net
Derivative Assets | Swap SOFR to Fixed (US$) | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 1,973,705 2,555,626
Derivative fair value asset (liability), net 424,824 1,104,984
Derivative Assets | Swap IPCA to CDI (notional in Brazilian Reais) | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 8,382,699 4,320,471
Derivative fair value asset (liability), net 927,586 161,542
Derivative Assets | Swap CDI x SOFR (US$) | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 3,117,625 644,850
Derivative fair value asset (liability), net 754,173 32,560
Derivative Assets | Swap CNH to Fixed (CNH) | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 1,200,000  
Derivative Assets | Swap SOFR to SOFR (US$) | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 150,961 150,961
Derivative fair value asset (liability), net 4,949 6,681
Derivative Liabilities | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Derivative fair value asset (liability), net (5,437,376) (2,016,256)
Derivative Liabilities | Swap CDI x Fixed (US$) | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 909,612 1,025,000
Derivative fair value asset (liability), net (2,259,020) (1,305,740)
Derivative Liabilities | Swap Pre-Fixed to US$ | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 200,000
Derivative fair value asset (liability), net (203,045)
Derivative Liabilities | Swap SOFR to Fixed (US$) | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 1,973,705 2,555,626
Derivative fair value asset (liability), net (30,695) (363,492)
Derivative Liabilities | Swap IPCA to CDI (notional in Brazilian Reais) | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 8,128,395 4,274,397
Derivative fair value asset (liability), net (1,753,485) (113,897)
Derivative Liabilities | Swap CDI x SOFR (US$) | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 610,171 125,000
Derivative fair value asset (liability), net (1,344,937) (6,786)
Derivative Liabilities | Swap CNH to Fixed (CNH) | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 165,815  
Derivative fair value asset (liability), net (6,440)  
Derivative Liabilities | Swap SOFR to SOFR (US$) | Fair value hedges    
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT    
Principle amount 150,961 150,961
Derivative fair value asset (liability), net R$ (42,799) R$ (23,296)