XML 162 R143.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Related Parties - Narrative (Details) - EUR (€) |  |  |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Feb. 06, 2025 | Nov. 25, 2024 | May 20, 2024 | Jan. 05, 2021 | Mar. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Disclosure of transactions between related parties [line items] |  |  |  |  |  |  |
Unearned premiums |  |  |  |  |  | € 4,743,348 | € 5,565,729
BBVA |  |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |  |
Significant shareholder stake of the Company (as a percent) |  |  |  |  |  | 0.77% | 0.76%
Guarantees |  |  |  |  |  | € 118,000,000 | € 239,000,000
Deposits maturity 2024 |  |  |  |  |  |  | 600,000,000
Purchase of goods |  |  |  |  |  | 1,000,000 | 0
BBVA | Derivative instruments |  |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |  |
Credit derivative, fair value |  |  |  |  |  | 106,000,000 | 52,000,000
Nominal amount of hedging instrument |  |  |  |  |  | € 7,702,000,000 | 9,797,000,000
Credit derivatives, to total (in percentage) |  |  |  |  |  | 9.00% |
Guarantees |  |  |  |  |  | € 24,000,000 | 45,000,000
Caixabank |  |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |  |
Expense recognised during period for bad and doubtful debts for related party transaction |  |  |  |  | € 3,000,000 |  | 6,000,000
Purchase of assets |  |  |  |  | 29,000,000 |  | 117,000,000
Telefónica Factoring España, S.A. Factoring |  |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |  |
Proportion of voting rights held in subsidiary (as a percent) |  |  |  |  |  | 50.00% |
Adquira España, S.A. |  |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |  |
Proportion of ownership interest in joint venture |  |  |  |  |  | 44.44% |
New fusion portfolio | Caixabank |  |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |  |
Purchase of goods |  |  |  |  | 139,000,000 |  | 393,000,000
Expense recognised during period for bad and doubtful debts for related party transaction |  |  |  |  | € 14,000,000 |  | € 33,000,000
BBVA |  |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |  |
Significant shareholder stake of the Company (as a percent) |  |  |  |  |  | 4.93% |
Proportion of ownership shares held |  |  |  |  |  | 0.231% |
BBVA | Adquira España, S.A. |  |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |  |
Proportion of ownership interest in joint venture |  |  |  |  |  | 44.44% |
Sociedad Estatal de Participaciones Industriales "SEPI" |  |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |  |
Significant shareholder stake of the Company (as a percent) |  |  | 10.00% |  |  |  |
Criteria Caixa S.A.U. |  |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |  |
Significant shareholder stake of the Company (as a percent) |  |  |  |  |  | 9.99% |
Fundación Bancaria Caixa d'Estalvis i Pensions de Barcelona |  |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |  |
Significant shareholder stake of the Company (as a percent) |  |  |  |  |  | 9.99% |
Telefonica Digital Espana | Movistar Consumer Finance Colombia SAS. |  |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |  |
Proportion of voting rights held in joint venture |  |  |  | 50.00% |  |  |
BlackRock Inc | Telefónica, S.A. |  |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |  |
Significant shareholder stake of the Company (as a percent) |  | 4.29% |  |  |  |  |
Green Bridge Investment Company | Telefónica, S.A. | Forecast |  |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |  |
Significant shareholder stake of the Company (as a percent) | 9.97% |  |  |  |  |  |

X
- Definition The fair value of a credit derivative. [Refer: At fair value [member]; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 24G -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_24G_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_CreditDerivativeFairValue
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The nominal amount of a credit derivative. [Refer: Derivatives [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 24G -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_24G_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_CreditDerivativeNominalAmount
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

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_DisclosureOfTransactionsBetweenRelatedPartiesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of expense recognised during the period in respect of bad or doubtful debts due from related parties. [Refer: Total for all related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2024-01-01 -Paragraph 18 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=24&code=ifrs-tx-2024-en-r&anchor=para_18_d&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ExpenseRecognisedDuringPeriodForBadAndDoubtfulDebtsForRelatedPartyTransaction
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The proportion of ownership interest in a joint venture attributable to the entity. [Refer: Total for all joint ventures [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 21 -Subparagraph a -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_21_a_iv&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInJointVenture
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of ownership interests in a subsidiary held by non-controlling interests. [Refer: Total for all subsidiaries [member]; Non-controlling interests] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 12 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_12_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of the voting rights in a subsidiary held by the entity. [Refer: Total for all subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 19B -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ProportionOfVotingPowerHeldInSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of the voting rights in a joint venture held by the entity. [Refer: Total for all joint ventures [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 21 -Subparagraph a -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_21_a_iv&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ProportionOfVotingRightsHeldInJointVenture
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of guarantees or collateral provided by the entity in related party transactions. [Refer: Guarantees [member]; Total for all related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 24 -IssueDate 2024-01-01 -Paragraph 21 -Subparagraph h -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=24&code=ifrs-tx-2024-en-r&anchor=para_21_h&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ProvisionOfGuaranteesOrCollateralByEntityRelatedPartyTransactions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of goods purchased by the entity in related party transactions. [Refer: Total for all related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 24 -IssueDate 2024-01-01 -Paragraph 21 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=24&code=ifrs-tx-2024-en-r&anchor=para_21_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_PurchasesOfGoodsRelatedPartyTransactions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Credit Derivatives, To Total , Percentage + References No definition available. + Details
Name: | tef_CreditDerivativesToTotalPercentage
Namespace Prefix: | tef_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Deposits Maturity in Year One + References No definition available. + Details
Name: | tef_DepositsMaturityInYearOne
Namespace Prefix: | tef_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Proportion Of Ownership Shares Held + References No definition available. + Details
Name: | tef_ProportionOfOwnershipSharesHeld
Namespace Prefix: | tef_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Purchase Of Assets, Related Party Transactions + References No definition available. + Details
Name: | tef_PurchaseOfAssetsRelatedPartyTransactions
Namespace Prefix: | tef_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of liability for written premiums on insurance contracts that have not yet been earned. [Refer: Types of insurance contracts [member]] + References No definition available. + Details
Name: | tef_UnearnedPremiumsLiability
Namespace Prefix: | tef_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=tef_BancoBilbaoVizcayaArgentariaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_HedgingInstrumentsAxis=ifrs-full_DerivativesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=tef_CaixabankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

X
- Details
Name: | dei_LegalEntityAxis=tef_BancoBilbaoVizcayaArgentariaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tef_SociedadEstatalDeParticipacionesIndustrialesSEPIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tef_CriteriaCaixaS.A.U.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tef_FundacionBancariaCaixaDEstalvisIPensionsDeBarcelonaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tef_TelefonicaDigitalEspanaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | dei_LegalEntityAxis=tef_Blackrockinc.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tef_TelefonicaS.A.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tef_GreenBridgeInvestmentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |