XML 96 R77.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Operations Classified as Held for Sale (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
Assets And Liabilities Classified As Held For Sale [Abstract] |
Schedule of Detailed Information on Operations Classified as Held for Sale and Liabilities Associated | The breakdown of non-current assets and disposal groups held for sale and liabilities associated at December 31, 2024 and December 31, 2023 is as follows:
Millions of euros | 12/31/2024 | 12/31/2023
Fiber optic assets in Peru | 77 | 273
Goodwill (Note 7) | — | 34
Property, plant and equipment (Note 8) | 33 | 198
Others | 44 | 41
Investment in Nabiax | 58 | —
Other assets | 3 | —
Non-current assets and disposal groups held for sale | 138 | 273
Millions of euros | 12/31/2024 | 12/31/2023
Liabilities associated with Fiber optic assets in Peru | 33 | 37
Liabilities associated with non-current assets and disposal groups held for sale | 33 | 37

X
- Definition Assets And Liabilities Classified As Held For Sale [Abstract] + References No definition available. + Details
Name: | tef_AssetsAndLiabilitiesClassifiedAsHeldForSaleAbstract
Namespace Prefix: | tef_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure Of Detailed Information On Operations Classified As Held For Sale And Liabilities Associated [Table Text Block] + References No definition available. + Details
Name: | tef_DisclosureOfDetailedInformationOnOperationsClassifiedAsHeldForSaleAndLiabilitiesAssociatedTableTextBlock
Namespace Prefix: | tef_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration