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Financial Instruments (Details 8) - BRL (R$)
R$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
IfrsStatementLineItems [Line Items]    
Net R$ 10,338,902 R$ 12,405,227
Post employment benefits    
IfrsStatementLineItems [Line Items]    
Current assets 288,419  
Current liabilities (244,064)  
Net Current 44,355  
Noncurrent assets 793,339  
Noncurrent liabilities (494,639)  
Net Noncurrent 298,700  
Net assets 1,081,758  
Net liabilities (738,703)  
Net R$ 343,055