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Financial Instruments (Details 9) - Post employment benefits
R$ in Thousands
 12 Months Ended
Dec. 31, 2022
BRL (R$)
E Levation [Member]  
IfrsStatementLineItems [Line Items]  
Gains (losses) on purchase and sale of energy in active market, Baseline R$ 343,055
Gains (losses) on purchase and sale of energy in active market, Projected Scenario Probable 343,055
Gains (losses) on purchase and sale of energy in active market, Projected Scenario 1 369,579
Gains (losses) on purchase and sale of energy in active market, Projected Scenario 2 396,104
Public lighting rate collected  
IfrsStatementLineItems [Line Items]  
Gains (losses) on purchase and sale of energy in active market, Baseline 343,055
Gains (losses) on purchase and sale of energy in active market, Projected Scenario Probable 343,055
Gains (losses) on purchase and sale of energy in active market, Projected Scenario 1 316,528
Gains (losses) on purchase and sale of energy in active market, Projected Scenario 2 R$ 290,003