v3.26.1
CONTRACT LIABILITY (ADVANCES FROM CUSTOMERS) (Details 1) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
IfrsStatementLineItems [Line Items]    
Amount R$ 13,374,703 R$ 13,769,589
Contract By Subsidiaries [Member]    
IfrsStatementLineItems [Line Items]    
Transaction date Jun. 28, 2024  
Amount R$ 255,000  
Volume 6,5 millions tons  
Term 4 years  
Contract By Subsidiaries 1 [Member]    
IfrsStatementLineItems [Line Items]    
Transaction date Sep. 25, 2024  
Amount R$ 450,000  
Volume 9,7 millions tons  
Term 4 years  
Contract By Subsidiaries 2 [Member]    
IfrsStatementLineItems [Line Items]    
Transaction date Sep. 27, 2024  
Amount R$ 300,000  
Volume 7,2 millions tons  
Term 4 years  
Contract By Subsidiaries 3 [Member]    
IfrsStatementLineItems [Line Items]    
Transaction date Dec. 17, 2024  
Amount R$ 355,000  
Volume 8,1 millions tons  
Term 5 years  
Contract By Subsidiaries 4 [Member]    
IfrsStatementLineItems [Line Items]    
Transaction date Jun. 30, 2025  
Amount R$ 241,000  
Volume 5,9 millions tons  
Term 4 years  
Contract By Subsidiaries 5 [Member]    
IfrsStatementLineItems [Line Items]    
Transaction date Aug. 29, 2025  
Amount R$ 300,000  
Volume 7,2 millions tons  
Term 4 years  
Agreements By Subsidiaries [Member]    
IfrsStatementLineItems [Line Items]    
Transaction date Nov. 03, 2025  
Amount R$ 367,000  
Volume 7,9 millions tons  
Term 4 years  
Agreements By Subsidiaries 1 [Member]    
IfrsStatementLineItems [Line Items]    
Transaction date Dec. 03, 2025  
Amount R$ 405,000  
Volume 9,7 millions tons  
Term 3 years  
Agreements By Subsidiaries 2 [Member]    
IfrsStatementLineItems [Line Items]    
Transaction date Dec. 03, 2025  
Amount R$ 150,000  
Volume 3,2 millions tons  
Term 4 years  
Agreements By Subsidiaries 3 [Member]    
IfrsStatementLineItems [Line Items]    
Transaction date Dec. 03, 2025  
Amount R$ 158,000  
Volume 3,8 millions tons  
Term 4 years  
Agreements By Subsidiaries 4 [Member]    
IfrsStatementLineItems [Line Items]    
Transaction date Dec. 03, 2025  
Amount R$ 300,000  
Volume 7,2 millions tons  
Term 5 years  
Agreements By Subsidiaries 5 [Member]    
IfrsStatementLineItems [Line Items]    
Transaction date Dec. 26, 2025  
Amount R$ 241,000  
Volume 5,9 millions tons  
Term 4 years