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Schedule of condensed statements of comprehensive income (Details) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Entity Information [Line Items]      
Net income R$ 5,048,602 R$ 3,909,750 R$ 2,062,869
Post employment benefits (3,257)    
[custom:OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstrument] 154,751    
[custom:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss1] 1,107    
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]      
[custom:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax1] 152,601    
[custom:ComprehensiveIncome1] 5,105,174    
Companhia Paranaense De Energia Copel [Member]      
Entity Information [Line Items]      
Net income R$ 4,952,573 3,904,202 1,989,946
Post employment benefits   (779) (3,371)
[custom:OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstrument]   (178,434) (120,358)
[custom:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss1]   265 1,146
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]      
[custom:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax1]   (178,948) (127,457)
[custom:ComprehensiveIncome1]   R$ 3,725,254 R$ 1,862,489