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Accounts Payable to Suppliers (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Disclosure of fair value measurement of liabilities [line items]    
Suppliers R$ 2,466,803 R$ 2,285,573
Suppliers, current 2,324,423 2,154,430
Suppliers, noncurrent 142,380 131,143
Energy Power [Member]    
Disclosure of fair value measurement of liabilities [line items]    
Suppliers 1,525,681 1,284,191
Materials And Supplies [Member]    
Disclosure of fair value measurement of liabilities [line items]    
Suppliers 564,368 638,025
Charges For Use Of Grid System [Member]    
Disclosure of fair value measurement of liabilities [line items]    
Suppliers R$ 376,754 R$ 363,357