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The balance of provisions for environmental liabilities and deactivation of assets can be shown as follows: (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
IfrsStatementLineItems [Line Items]    
Provision for environmental liabilities and decommissioning of assets R$ 898,597 R$ 803,835
Environmental Liabilities [Member]    
IfrsStatementLineItems [Line Items]    
Provision for environmental liabilities and decommissioning of assets 173,647 192,830
Asset Retirement Obligations [Member]    
IfrsStatementLineItems [Line Items]    
Provision for environmental liabilities and decommissioning of assets R$ 724,950 R$ 611,005