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Total [miembro]

Acueducto [miembro]

Alcantarillado [miembro]

Aseo [miembro]

Energía Eléctrica [miembro]

Gas combustible por redes [miembro]

Gas Licuado de Petróleo [miembro]

Otras actividades no vigiladas por la SSPD [miembro]

Operador del sistema y Administrador del mercado de energia (XM) [miembro]

Estado de Flujo de Efectivo por Servicio [partidas]

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Cash flows from (used in) operating activities [abstract]

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Classes of cash receipts from operating activities [abstract]

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Receipts from sales of goods and rendering of services

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Receipts from royalties, fees, commissions and other revenue

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Receipts from contracts held for dealing or trading purposes

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Receipts from premiums and claims, annuities and other policy benefits

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Receipts from rents and subsequent sales of assets held for rental to others and subsequently held for sale

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Other cash receipts from operating activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:OtherCashReceiptsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:OtherCashReceiptsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:OtherCashReceiptsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:OtherCashReceiptsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:OtherCashReceiptsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:OtherCashReceiptsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:OtherCashReceiptsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Classes of cash payments from operating activities [abstract]

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concept	ifrs-full:ClassesOfCashPaymentsAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:ClassesOfCashPaymentsAbstract	y
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concept	ifrs-full:ClassesOfCashPaymentsAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:ClassesOfCashPaymentsAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ClassesOfCashPaymentsAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Payments to suppliers for goods and services

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concept	ifrs-full:PaymentsToSuppliersForGoodsAndServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsToSuppliersForGoodsAndServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsToSuppliersForGoodsAndServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsToSuppliersForGoodsAndServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsToSuppliersForGoodsAndServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsToSuppliersForGoodsAndServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsToSuppliersForGoodsAndServices	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Payments from contracts held for dealing or trading purpose

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concept	ifrs-full:PaymentsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Payments to and on behalf of employees

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concept	ifrs-full:PaymentsToAndOnBehalfOfEmployees	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:PaymentsToAndOnBehalfOfEmployees	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:PaymentsToAndOnBehalfOfEmployees	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsToAndOnBehalfOfEmployees	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:PaymentsToAndOnBehalfOfEmployees	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsToAndOnBehalfOfEmployees	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsToAndOnBehalfOfEmployees	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Payments for premiums and claims, annuities and other policy benefits

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concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Payments to manufacture or acquire assets held for rental to others and subsequently held for sale

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concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Other cash payments from operating activities

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concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Cash flows from (used in) operations

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Dividends paid, classified as operating activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:DividendsPaidClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Dividends received, classified as operating activities

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concept	ifrs-full:DividendsReceivedClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Interest paid, classified as operating activities

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:InterestPaidClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Interest received, classified as operating activities

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concept	ifrs-full:InterestReceivedClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:InterestReceivedClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:InterestReceivedClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Income taxes paid (refund), classified as operating activities

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concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Other inflows (outflows) of cash, classified as operating activities

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Cash flows from (used in) operating activities

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concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Cash flows from (used in) investing activities [abstract]

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concept	ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Cash flows from losing control of subsidiaries or other businesses, classified as investing activities

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concept	ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities

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concept	ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
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Other cash receipts from sales of equity or debt instruments of other entities, classified as investing activities

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Other cash receipts from sales of interests in joint ventures, classified as investing activities

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Other cash payments to acquire interests in joint ventures, classified as investing activities

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Proceeds from sales of property, plant and equipment, classified as investing activities

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Purchase of property, plant and equipment, classified as investing activities

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Proceeds from sales of intangible assets, classified as investing activities

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Purchase of intangible assets, classified as investing activities

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Proceeds from sales of other long-term assets, classified as investing activities

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Purchase of other long-term assets, classified as investing activities

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Proceeds from government grants, classified as investing activities

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concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Cash advances and loans made to other parties, classified as investing activities

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concept	ifrs-full:CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Cash receipts from repayment of advances and loans made to other parties, classified as investing activities

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concept	ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Cash payments for futures contracts, forward contracts, option contracts and swap contracts, classified as investing activities

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concept	ifrs-full:CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Cash receipts from futures contracts, forward contracts, option contracts and swap contracts, classified as investing activities

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concept	ifrs-full:CashReceiptsFromFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:CashReceiptsFromFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:CashReceiptsFromFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:CashReceiptsFromFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashReceiptsFromFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashReceiptsFromFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Dividends received, classified as investing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:DividendsReceivedClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:DividendsReceivedClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:DividendsReceivedClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:DividendsReceivedClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:DividendsReceivedClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:DividendsReceivedClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:DividendsReceivedClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Interest paid, classified as investing activities

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:InterestPaidClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Interest received, classified as investing activities

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:InterestReceivedClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Income taxes paid (refund), classified as investing activities

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concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Other inflows (outflows) of cash, classified as investing activities

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Cash flows from (used in) investing activities

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concept	ifrs-full:CashFlowsFromUsedInInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromUsedInInvestingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Cash flows from (used in) financing activities [abstract]

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concept	ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Proceeds from changes in ownership interests in subsidiaries that do not result in loss of control

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ProceedsFromChangesInOwnershipInterestsInSubsidiaries	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Payments from changes in ownership interests in subsidiaries that do not result in loss of control

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsFromChangesInOwnershipInterestsInSubsidiaries	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Proceeds from issuing shares

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concept	ifrs-full:ProceedsFromIssuingShares	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:ProceedsFromIssuingShares	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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concept	ifrs-full:ProceedsFromIssuingShares	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

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period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ProceedsFromIssuingShares	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ProceedsFromIssuingShares	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Proceeds from issuing other equity instruments

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Payments to acquire or redeem entity's shares

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Payments of other equity instruments

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Proceeds from borrowings, classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Repayments of borrowings, classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Payments of lease liabilities, classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Proceeds from government grants, classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Dividends paid, classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Interest paid, classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Income taxes paid (refund), classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Other inflows (outflows) of cash, classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Cash flows from (used in) financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Increase (decrease) in cash and cash equivalents before effect of exchange rate changes

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Effect of exchange rate changes on cash and cash equivalents [abstract]

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Effect of exchange rate changes on cash and cash equivalents

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Increase (decrease) in cash and cash equivalents

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Cash and cash equivalents

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Cash and cash equivalents

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Total [miembro]

Acueducto [miembro]

Alcantarillado [miembro]

Aseo [miembro]

Energía Eléctrica [miembro]

Gas combustible por redes [miembro]

Gas Licuado de Petróleo [miembro]

Otras actividades no vigiladas por la SSPD [miembro]

Operador del sistema y Administrador del mercado de energia (XM) [miembro]

Estado de Flujo de Efectivo por Servicio [partidas]

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	co-sspd-ef-Grupo1:EstadoFlujoEfectivoPartidas	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Cash flows from (used in) operating activities [abstract]

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Classes of cash receipts from operating activities [abstract]

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ClassesOfCashReceiptsFromOperatingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Receipts from sales of goods and rendering of services

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Receipts from royalties, fees, commissions and other revenue

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Receipts from contracts held for dealing or trading purposes

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Receipts from premiums and claims, annuities and other policy benefits

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ReceiptsFromPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Receipts from rents and subsequent sales of assets held for rental to others and subsequently held for sale

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ReceiptsFromRentsAndSubsequentSalesOfSuchAssets	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Other cash receipts from operating activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:OtherCashReceiptsFromOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:OtherCashReceiptsFromOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:OtherCashReceiptsFromOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:OtherCashReceiptsFromOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:OtherCashReceiptsFromOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Classes of cash payments from operating activities [abstract]

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concept	ifrs-full:ClassesOfCashPaymentsAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:ClassesOfCashPaymentsAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ClassesOfCashPaymentsAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Payments to suppliers for goods and services

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concept	ifrs-full:PaymentsToSuppliersForGoodsAndServices	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PaymentsToSuppliersForGoodsAndServices	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PaymentsToSuppliersForGoodsAndServices	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PaymentsToSuppliersForGoodsAndServices	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsToSuppliersForGoodsAndServices	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Payments from contracts held for dealing or trading purpose

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concept	ifrs-full:PaymentsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PaymentsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsFromContractsHeldForDealingOrTradingPurpose	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Payments to and on behalf of employees

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concept	ifrs-full:PaymentsToAndOnBehalfOfEmployees	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:PaymentsToAndOnBehalfOfEmployees	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:PaymentsToAndOnBehalfOfEmployees	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PaymentsToAndOnBehalfOfEmployees	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:PaymentsToAndOnBehalfOfEmployees	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PaymentsToAndOnBehalfOfEmployees	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsToAndOnBehalfOfEmployees	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Payments for premiums and claims, annuities and other policy benefits

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concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsForPremiumsAndClaimsAnnuitiesAndOtherPolicyBenefits	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Payments to manufacture or acquire assets held for rental to others and subsequently held for sale

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concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsToManufactureOrAcquireAssetsHeldForRentalToOthersAndSubsequentlyHeldForSale	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Other cash payments from operating activities

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concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:OtherCashPaymentsFromOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Cash flows from (used in) operations

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromUsedInOperations	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Dividends paid, classified as operating activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Dividends received, classified as operating activities

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concept	ifrs-full:DividendsReceivedClassifiedAsOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Interest paid, classified as operating activities

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concept	ifrs-full:InterestPaidClassifiedAsOperatingActivities	y
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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:InterestPaidClassifiedAsOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Interest received, classified as operating activities

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concept	ifrs-full:InterestReceivedClassifiedAsOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:InterestReceivedClassifiedAsOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Income taxes paid (refund), classified as operating activities

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concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Other inflows (outflows) of cash, classified as operating activities

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Cash flows from (used in) operating activities

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concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromUsedInOperatingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Cash flows from (used in) investing activities [abstract]

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concept	ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Cash flows from losing control of subsidiaries or other businesses, classified as investing activities

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concept	ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities

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Other cash receipts from sales of equity or debt instruments of other entities, classified as investing activities

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Other cash payments to acquire equity or debt instruments of other entities, classified as investing activities

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Other cash receipts from sales of interests in joint ventures, classified as investing activities

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Other cash payments to acquire interests in joint ventures, classified as investing activities

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Proceeds from sales of property, plant and equipment, classified as investing activities

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Purchase of property, plant and equipment, classified as investing activities

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Proceeds from sales of intangible assets, classified as investing activities

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Purchase of intangible assets, classified as investing activities

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Proceeds from sales of other long-term assets, classified as investing activities

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Purchase of other long-term assets, classified as investing activities

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Proceeds from government grants, classified as investing activities

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concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Cash advances and loans made to other parties, classified as investing activities

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concept	ifrs-full:CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Cash receipts from repayment of advances and loans made to other parties, classified as investing activities

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concept	ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Cash payments for futures contracts, forward contracts, option contracts and swap contracts, classified as investing activities

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concept	ifrs-full:CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Cash receipts from futures contracts, forward contracts, option contracts and swap contracts, classified as investing activities

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concept	ifrs-full:CashReceiptsFromFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:CashReceiptsFromFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:CashReceiptsFromFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:CashReceiptsFromFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:CashReceiptsFromFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashReceiptsFromFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:CashReceiptsFromFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashReceiptsFromFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashReceiptsFromFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Dividends received, classified as investing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:DividendsReceivedClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:DividendsReceivedClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:DividendsReceivedClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:DividendsReceivedClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:DividendsReceivedClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Interest paid, classified as investing activities

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Interest received, classified as investing activities

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:InterestReceivedClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Income taxes paid (refund), classified as investing activities

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concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Other inflows (outflows) of cash, classified as investing activities

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Cash flows from (used in) investing activities

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concept	ifrs-full:CashFlowsFromUsedInInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromUsedInInvestingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Cash flows from (used in) financing activities [abstract]

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concept	ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Proceeds from changes in ownership interests in subsidiaries that do not result in loss of control

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:ProceedsFromChangesInOwnershipInterestsInSubsidiaries	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ProceedsFromChangesInOwnershipInterestsInSubsidiaries	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Payments from changes in ownership interests in subsidiaries that do not result in loss of control

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PaymentsFromChangesInOwnershipInterestsInSubsidiaries	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:PaymentsFromChangesInOwnershipInterestsInSubsidiaries	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsFromChangesInOwnershipInterestsInSubsidiaries	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Proceeds from issuing shares

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concept	ifrs-full:ProceedsFromIssuingShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ProceedsFromIssuingShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:ProceedsFromIssuingShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:ProceedsFromIssuingShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:ProceedsFromIssuingShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ProceedsFromIssuingShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ProceedsFromIssuingShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ProceedsFromIssuingShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ProceedsFromIssuingShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Proceeds from issuing other equity instruments

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ProceedsFromIssuingOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Payments to acquire or redeem entity's shares

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Payments of other equity instruments

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsOfOtherEquityInstruments	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Proceeds from borrowings, classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Repayments of borrowings, classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Payments of lease liabilities, classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Proceeds from government grants, classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Dividends paid, classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:DividendsPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Interest paid, classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:InterestPaidClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Income taxes paid (refund), classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:IncomeTaxesPaidRefundClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Other inflows (outflows) of cash, classified as financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Cash flows from (used in) financing activities

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashFlowsFromUsedInFinancingActivities	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Increase (decrease) in cash and cash equivalents before effect of exchange rate changes

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Effect of exchange rate changes on cash and cash equivalents [abstract]

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalentsAbstract	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Effect of exchange rate changes on cash and cash equivalents

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Increase (decrease) in cash and cash equivalents

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Cash and cash equivalents

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AseoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:EnergiaElectricaMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasNaturalMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:GasLicuadoDePetroleoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OtrasActividadesNoVigiladasMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:OperadorDelSistemaYAdministradorDelMercadoDeEnergiaXMMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

Cash and cash equivalents

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:TotalFlujosEfectivoAcumuladoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AcueductoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

co-sspd-ef-Grupo1:EstadoFlujosEfectivoIndirectoEje	co-sspd-ef-Grupo1:AlcantarilladoMember	x
concept	ifrs-full:CashAndCashEquivalents	y
period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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concept	ifrs-full:CashAndCashEquivalents	y
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period	xs:date('2019-01-01')/xs:date('2019-12-31')	z

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