XML 128 R109.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Business Combinations - IPNET Group Narrative (Details) € in Millions, R$ in Millions |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Oct. 01, 2024 EUR (€) | Oct. 01, 2024 BRL (R$) | Dec. 31, 2024 EUR (€) | Dec. 31, 2024 EUR (€) | Dec. 31, 2023 EUR (€) | Dec. 31, 2022 EUR (€) | Oct. 01, 2024 BRL (R$)
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |
Cash paid |  |  |  | € 189 | € 252 | € 1,628 |
IPNET acquisition (Note 5) |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |
Consideration | € 37 |  |  |  |  |  | R$ 224
Cash paid | € 10 | R$ 60 |  | € 10 | € 0 | € 0 |
Revenue of acquiree since acquisition date |  |  | € 11 |  |  |  |

X
- Definition The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Total for all business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B64 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B64_f&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
Name: | ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The aggregate cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities. [Refer: Total for all subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 39 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_39&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition The amount of revenue of the acquiree since the acquisition date included in the consolidated statement of comprehensive income. [Refer: Revenue] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B64 -Subparagraph q -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B64_q_i&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
Name: | ifrs-full_RevenueOfAcquiree
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_BusinessCombinationsAxis=tef_IPNETGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |