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BASIS OF CONSOLIDATION AND INVESTMENTS (Details 2) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
IfrsStatementLineItems [Line Items]    
Equity in results of affiliated companies R$ 267,498 R$ 205,662
Eliminations to cost of sale (80,006) (62,982)
Eliminations to taxes 27,202 21,414
Equity in results 237,917 182,504
Amortizated At Fair Value Investment In M R S [Member]    
IfrsStatementLineItems [Line Items]    
Equity in results of affiliated companies (37,633) (11,747)
M R S Logistica S A [Member]    
IfrsStatementLineItems [Line Items]    
Equity in results of affiliated companies 325,800 260,622
Transnordestina Logistica S A [Member]    
IfrsStatementLineItems [Line Items]    
Equity in results of affiliated companies (29,307) (45,870)
Arvedi Metalfer Do Brasil S A [Member]    
IfrsStatementLineItems [Line Items]    
Equity in results of affiliated companies 4,702 3,265
Equimac S A [Member]    
IfrsStatementLineItems [Line Items]    
Equity in results of affiliated companies 3,936 (608)
Other Investment [Member]    
IfrsStatementLineItems [Line Items]    
Equity in result of affiliated companies other R$ 23,223 R$ 18,410