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FINANCIAL INSTRUMENTS (Details 8) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
IfrsStatementLineItems [Line Items]    
Cash flow hedge accounting - Platts R$ (672,280) R$ (341,269)
Income tax and social contribution on cash flow hedge accounting 228,575 116,031
Fair Value of cash flow accounting - Platts, net (443,705) R$ (225,238)
Movement [Member]    
IfrsStatementLineItems [Line Items]    
Cash flow hedge accounting - Platts (1,121,940)  
Income tax and social contribution on cash flow hedge accounting 381,460  
Fair Value of cash flow accounting - Platts, net (740,480)  
Realization [Member]    
IfrsStatementLineItems [Line Items]    
Cash flow hedge accounting - Platts 790,929  
Income tax and social contribution on cash flow hedge accounting (268,916)  
Fair Value of cash flow accounting - Platts, net R$ 522,013