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PROVISION FOR JUDICIAL LIABILITIES - Possible losses, civil and environmental (Details)
Dec. 31, 2024
BRL (R$)
item
Dec. 31, 2023
BRL (R$)
item
Fibria    
PROVISION FOR JUDICIAL LIABILITIES    
Fair value adjustment of probable contingencies R$ 2,108,635,000 R$ 2,135,869,000
Civil, environment and real estate    
PROVISION FOR JUDICIAL LIABILITIES    
Possible losses for which no provision was recorded R$ 5,065,714  
Possible losses | Civil, environment and real estate    
PROVISION FOR JUDICIAL LIABILITIES    
Number of lawsuits | item 201 219
Possible losses for which no provision was recorded   R$ 4,462,964