XML 261 R245.htm IDEA: XBRL DOCUMENT
v3.22.4

Appendix I: Scope of Consolidation - Main Changes in the Scope of Consolidation for the Year (Details) | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
FiBrasil Infraestructura e Fibra Ótica, S.A. |  |
Disclosure of subsidiaries [line items] |  |
Ownership of incorporated company (in percentage) |  | 43.55%
VMO2 |  |
Disclosure of subsidiaries [line items] |  |
Ownership of incorporated company (in percentage) |  | 50.00%
O2 Holdings Ltd |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 50.00%
Telefonica UK Limited |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 50.00%
Giffgaff Ltd |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 50.00%
O2 Networks |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 50.00%
Cornerstone Telecomunications |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 25.00%
Tesco Mobile Ltd. |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 25.00%
Telefónica Cybersecurity Tech UK Limited |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 50.00%
VivaE Educação Digital S.A |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 74.79% |
% sold | 50.00% |
Garliava RJ Infraestrutura E Redes De Telecomunicacoes S.A. Wireline Telephony Operator |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 74.79% |
Vivo Ventures Fundo De Investimento Em Participacoes Multiestrategia |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 74.79% |
Vita IT Comercio E Servicos De Solucoes Em TI Ltda |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 74.79% |
Geprom Software Engineering S.L. |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Geprom Software Engineering S.A. |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Perpetual Topco Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Perpetual Midco Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Perpetual Bidco Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Incremental Group Holdings Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Redspire Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Incremental Group Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Adatis Group Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Adatis Consulting Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Adatis BG LTD |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Adatis India Private Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Kumo Analytics Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Adatis Managed Services Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna Acceleration Holding GmbH |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna Acceleration GmbH |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna Enhancement GmbH |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna Germany GmbH |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna AB (Sweden) |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Boydak Automation AG |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna ApS (Denmark) |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna B.V. (Netherlands) |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna GmbH (Leipzig) |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna Austria GmbH |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna GmbH (Innsbruck) |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Pipol A/S |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna A/S (Norway) |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna Business Solutions GmbH |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna Industry Solutions GmbH |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna AG (Switzerland) |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna Adriatic |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna Belgrade (Serbia) |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna Ljubijana (Slovenia) |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
BE-terna Zagreb (Croatia) |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Alamo HoldCo S.L. |  |
Disclosure of subsidiaries [line items] |  |
Ownership of incorporated company (in percentage) | 27.00% |
Onnet Fibra Colombia S.A.S. |  |
Disclosure of subsidiaries [line items] |  |
Ownership of incorporated company (in percentage) | 27.00% |
Opal Holdco Limited |  |
Disclosure of subsidiaries [line items] |  |
Ownership of incorporated company (in percentage) | 50.00% |
Opal Jvco Limited (nexfibre) |  |
Disclosure of subsidiaries [line items] |  |
Ownership of incorporated company (in percentage) | 50.00% |
% sold | 25.00% |
Bluevia Fibra, S.L.U. |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
% sold | 45.00% |
Solar360 Soluciones De Instalacion y Mantenimiento S.L. |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 51.00% |
TLH Holdco S.L. |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
TIS Hispanoamerica, S.L. |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 100.00% |
Buendía Estudios Canarias S.L.U. |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 50.00% |
Buendia Estudios Bizkaia, S.L. |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 50.00% |
Solar360 de Repsol y Movistar S.L. |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 50.00% |
Telefonica Renting, S.A. |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition | 50.00% |
Telefónica El Salvador |  |
Disclosure of subsidiaries [line items] |  |
% sold | 59.58% |
Telefónica Cybersecurity Tech Argentina S.A. |  |
Disclosure of subsidiaries [line items] |  |
% sold | 100.00% |
Telefónica Global Solutions, S.L.U. International service provider |  |
Disclosure of subsidiaries [line items] |  |
% sold | 100.00% |
Altostratus Solutions, S.L. |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition |  | 100.00%
Telefonica Cybersecurity & Cloud Tech Deutschland GmbH |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition |  | 100.00%
Telefónica Tech UK & Ireland |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition |  | 100.00%
Telefonica Tech UK Holdings Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition |  | 100.00%
Telefonica Tech UK TOG Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition |  | 100.00%
Telefonica Tech UK Managed Services Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition |  | 100.00%
Telefonica Tech UK Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition |  | 100.00%
Telefonica Tech Northern Ireland Holdings Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition |  | 100.00%
Telefonica Tech Communication & Collaboration Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition |  | 100.00%
Telefonica Tech Northern Ireland Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition |  | 100.00%
Cancom Ireland Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition |  | 100.00%
Telefonica Tech Ocean Limited |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition |  | 100.00%
Prosegur Soluciones S.A.U. |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition |  | 100.00%
Daytona Midco SL. |  |
Disclosure of subsidiaries [line items] |  |
% Acquisition |  | 13.94%
HoldCo infraCo SpA |  |
Disclosure of subsidiaries [line items] |  |
Ownership of incorporated company (in percentage) |  | 100.00%
% sold |  | 60.00%
Telefonica Global Solutions Germany GmbH. |  |
Disclosure of subsidiaries [line items] |  |
Ownership of incorporated company (in percentage) |  | 100.00%
Movistar Consumer Finance Colombia SAS. |  |
Disclosure of subsidiaries [line items] |  |
Ownership of incorporated company (in percentage) |  | 50.00%
Buendia Estudios Uno, S.L.U. |  |
Disclosure of subsidiaries [line items] |  |
Ownership of incorporated company (in percentage) |  | 50.00%
Buendia Estudios Dos, S.L.U. |  |
Disclosure of subsidiaries [line items] |  |
Ownership of incorporated company (in percentage) |  | 50.00%
Inmosites, S.A.U. Purchase and rental of real estate related to the telecommunications infrastructure business |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 50.01%
Telxius Torres Latam [Member] |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 50.01%
Telxius Torres Espana [Member] |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 50.01%
Telxius Towers Germany Gmbh |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 50.01%
Telxius Torres Perú S.A.C. |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 50.01%
Telxius Torres Chile Holding, S.A. |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 50.01%
Telxius Torres Chile, S.A. |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 50.01%
Telxius Torres Brasil, Ltda. |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 50.01%
Inmosites Brasil Participaçoes Imobiliarias Ltda |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 50.01%
Telxius Torres Argentina, S.A. |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 50.01%
Telefónica de Costa Rica TC, S.A. |  |
Disclosure of subsidiaries [line items] |  |
% sold |  | 100.00%

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2022-03-24 -Paragraph B64 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B64_c&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
Name: | ifrs-full_PercentageOfVotingEquityInterestsAcquired
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage Of Voting Equity Interests Held In Newly Incorporated Companies + References No definition available. + Details
Name: | tef_PercentageOfVotingEquityInterestsHeldInNewlyIncorporatedCompanies
Namespace Prefix: | tef_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of Share Capital Sold + References No definition available. + Details
Name: | tef_PercentageofShareCapitalSold
Namespace Prefix: | tef_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_JointVenturesAxis=tef_FiBrasilInfraestructuraEFibraOticaSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=tef_VMEDO2UKLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=tef_O2HoldingsLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=tef_TelefonicaUnitedKingdomLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=tef_GiffgaffLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=tef_O2NetworksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=tef_CornerstoneTelecomunicationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=tef_TescoMobileLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=tef_TelefnicaCybersecurityTechUKLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_VivaEEducacaoDigitalSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_GarliavaRJInfraestruturaERedesDeTelecomunicacoesSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_VivoVenturesFundoDeInvestimentoEmParticipacoesMultiestrategiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_VitaITComercioEServicosDeSolucoesEmTILtdaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_GepromSoftwareEngineeringSLMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_GepromSoftwareEngineeringSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_PerpetualTopcoLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_PerpetualMidcoLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_PerpetualBidcoLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_IncrementalGroupHoldingsLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_RedspireLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_IncrementalGroupLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_AdatisGroupLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_AdatisConsultingLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_AdatisBGLTDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_AdatisIndiaPrivateLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_KumoAnalyticsLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_AdatisManagedServicesLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaAccelerationHoldingGmbHMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaAccelerationGmbHMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaEnhancementGmbHMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaGermanyGmbHMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaABSwedenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BoydakAutomationAGMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaApSDenmarkMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaBVNetherlandsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaGmbHLeipzigMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaAustriaGmbHMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaGmbHInnsbruckMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_PipolASMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaASNorwayMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaBusinessSolutionsGmbHMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaIndustrySolutionsGmbHMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaAGSwitzerlandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaAdriaticMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaBelgradeSerbiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaLjubijanaSloveniaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BETernaZagrebCroatiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_AlamoHoldCoSLMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_OnnetFibraColombiaSASMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_OpalHoldcoLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_OpalJvcoLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BlueviaFibraSLUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_Solar360SolucionesDeInstalacionYMantenimientoSLMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TLHHoldcoSLMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TISHispanoamericaSLMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BuendiaEstudiosCanariasSLUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BuendiaEstudiosBizkaiaSLMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_Solar360DeRepsolYMovistarSLMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaRentingSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaMovilesElSalvadorS.A.deC.V.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaCybersecurityTechArgentinaSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_SaoPauloTelecomunicacoesParticipacoesLtdaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_AltostratusSolutionsSLMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaCybersecurityCloudTechDeutschlandGmbHMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaTechUKIrelandLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaTechUKHoldingsLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaTechUKTOGLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaTechUKManagedServicesLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaTechUKLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaTechNorthernIrelandHoldingsLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaTechCommunicationCollaborationLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaTechNorthernIrelandLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_CancomIrelandLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaTechOceanLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_ProsegurSolucionesSAUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_DaytonaMidcoSLMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_HoldCoInfraCoSpAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaGlobalSolutionsGermanyGmbHMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_MovistarConsumerFinanceColombiaSASMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BuendiaEstudiosUnoSLUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_BuendiaEstudiosDosSLUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_InmositesS.A.U.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelxiusTorresLatamMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelxiusTorresEspanaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelxiusTowersGermanyGmbhMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelxiusTorresPeruS.A.C.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelxiusTorresChileHoldingS.A.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelxiusTorresChileS.A.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelxiusTorresBrasilLtda.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_InmositesBrasilParticipaoesImobiliariasLtdaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelxiusTorresArgentinaS.A.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaDeCostaRicaTCSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |