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Related Party Transactions (Details 1) - BRL (R$)
R$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Related party transactions [abstract]    
Aliança Geração   R$ 127
Taesa R$ 50 5
Other [1]   14
Total R$ 50 R$ 146
[1] The subsidiaries grouped in ‘Other’ are identified in the table above under ‘Interest on Equity, and Dividends’.