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Assets Classified as Held for Sale - Schedule of Book Value of Plants in Assets Held for Sale Group (Details) - BRL (R$)
R$ in Millions
Dec. 31, 2024
Dec. 31, 2023
IfrsStatementLineItems [Line Items]    
Net book value Fixed assets and Intangible assets R$ 57 R$ 58
Property, Plant and Equipment, Intangible Assets - Plants [Member]    
IfrsStatementLineItems [Line Items]    
Net book value Fixed assets and Intangible assets 20 58
Financial assets – Generation – Concession grant fee [Member]    
IfrsStatementLineItems [Line Items]    
Net book value Fixed assets and Intangible assets R$ 37