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Property, plant and equipment [member]

Land and buildings [member]

Machinery [member]

Vehicles [member]

Fixtures and fittings [member]

Office equipment [member]

Computer equipment [member]

Communication and network equipment [member]

Construction in progress [member]

Información complementaria [miembro]

Other property, plant and equipment [member]

Land [member]

Buildings [member]

Plantas [miembro]

Ductos [miembro]

Vías [miembro]

Redes y Cables [miembro]

Relleno sanitario [miembro]

Disclosure of detailed information about property, plant and equipment [line items]

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Measurement bases, property, plant and equipment

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:MeasurementBasesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Depreciation method, property, plant and equipment

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationMethodPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Vidas útiles o tasas de depreciación, propiedades, planta y equipo

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	co-sspd-ef-Grupo1:VidasUtilesTasasDeDepreciacionPropiedadesPlantaEquipo	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Effective dates of revaluation, property, plant and equipment

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:EffectiveDatesOfRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Explanation of involvement of independent valuer in revaluation, property, plant and equipment

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ExplanationOfIndependentValuerUsedForRevaluationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Reconciliation of changes in property, plant and equipment [abstract]

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Property, plant and equipment

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Changes in property, plant and equipment [abstract]

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipmentAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Additions other than through business combinations, property, plant and equipment

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Increase (decrease) through net exchange differences, property, plant and equipment

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Depreciation, property, plant and equipment

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DepreciationPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Impairment loss recognised in profit or loss, property, plant and equipment

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Reversal of impairment loss recognised in profit or loss, property, plant and equipment

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Revaluation increase (decrease), property, plant and equipment

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Impairment loss recognised in other comprehensive income, property, plant and equipment

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Reversal of impairment loss recognised in other comprehensive income, property, plant and equipment

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncomePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Disposals and retirements, property, plant and equipment

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Decrease through classified as held for sale, property, plant and equipment

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Increase (decrease) through other changes, property, plant and equipment

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Increase (decrease) in property, plant and equipment

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:ChangesInPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Property, plant and equipment

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Additional information [abstract]

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:AdditionalInformationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Property, plant and equipment, expenditures recognised in course of its construction

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Property, plant and equipment, temporarily idle

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentTemporarilyIdle	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Property, plant and equipment, gross carrying amount of fully depreciated assets still in use

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentGrossCarryingAmountFullyDepreciated	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Property, plant and equipment, assets retired from active use and not classified as held for sale

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfAssetsRetiredFromActiveUse	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Property, plant and equipment, revaluation [abstract]

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationAbstract	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Property, plant and equipment, revalued assets

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Property, plant and equipment, revalued assets, at cost

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentCarryingAmountAtCostOfRevaluedAssets	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Property, plant and equipment, revaluation surplus

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:PropertyPlantAndEquipmentRevaluationSurplus	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

Description of restrictions on distribution of revaluation surplus to shareholders, property, plant and equipment

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:PropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandAndBuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:LandMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:BuildingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:MachineryMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:VehiclesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:FixturesAndFittingsMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OfficeEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ComputerEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:CommunicationAndNetworkEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:ConstructionInProgressMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:InformacionComplementariaMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:PlantasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:DuctosMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:ViasMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RedesYCablesMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	co-sspd-ef-Grupo1:RellenoSanitarioMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z

concept	ifrs-full:DescriptionOfRestrictionsOnDistributionOfRevaluationSurplusToShareholdersPropertyPlantAndEquipment	y
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis	ifrs-full:OtherPropertyPlantAndEquipmentMember	x
period	xs:date('2020-01-01')/xs:date('2020-12-31')	z