XML 122 R103.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Segment Information - Segment Assets, Liabilities and Investments Accounted for by the Equity Method (Details) - EUR (€) € in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Disclosure of operating segments [line items] |  |  |
Fixed Assets | € 21,439 | € 22,944 | € 23,714
Rights of use | 7,907 | 8,448 | 8,279
Investments accounted for by the equity method | 232 | 325 |
Financial assets and other non-current assets | 7,403 | 7,268 |
Deferred tax assets | 6,673 | 6,240 | 4,884
Current financial assets | 1,800 | 1,078 |
Non-current assets and disposal groups held for sale | 138 | 273 |
Total allocated assets | 100,502 | 104,324 |
Non-current financial liabilities | 33,192 | 33,360 |
Non-current lease liabilities | 6,077 | 6,708 |
Deferred tax liabilities | 2,905 | 2,702 | € 3,067
Current financial liabilities | 5,590 | 3,701 |
Current lease liabilities | 2,226 | 2,239 |
Liabilities associated with non-current assets and disposal groups held for sale | 33 | 37 |
VMO2 |  |  |
Disclosure of operating segments [line items] |  |  |
Fixed Assets | 10,994 | 10,011 |
Current financial assets | 660 | 567 |
Total allocated assets | 48,247 | 46,455 |
Non-current financial liabilities | 21,754 | 21,061 |
Non-current lease liabilities | 950 | 663 |
Current financial liabilities | 4,970 | 4,165 |
Current lease liabilities | 197 | 201 |
Total allocated liabilities | 32,804 | 30,727 |
Other companies |  |  |
Disclosure of operating segments [line items] |  |  |
Fixed Assets | 1,971 | 2,243 |
Rights of use | 132 | 111 |
Investments accounted for by the equity method | 388 | 361 |
Financial assets and other non-current assets | 7,941 | 7,384 |
Deferred tax assets | 2,442 | 1,882 |
Current financial assets | 3,658 | 3,660 |
Non-current assets and disposal groups held for sale | 59 | 0 |
Total allocated assets | 24,705 | 23,096 |
Non-current financial liabilities | 29,634 | 28,948 |
Non-current lease liabilities | 42 | 44 |
Deferred tax liabilities | 1,447 | 838 |
Current financial liabilities | 6,903 | 6,960 |
Current lease liabilities | 36 | 20 |
Liabilities associated with non-current assets and disposal groups held for sale | 0 | 0 |
Total allocated liabilities | 41,508 | 40,159 |
Operating segments | Telefónica Spain |  |  |
Disclosure of operating segments [line items] |  |  |
Fixed Assets | 14,119 | 14,186 |
Rights of use | 1,535 | 1,771 |
Investments accounted for by the equity method | 217 | 233 |
Financial assets and other non-current assets | 1,126 | 1,058 |
Deferred tax assets | 2,507 | 2,676 |
Current financial assets | 33 | 36 |
Non-current assets and disposal groups held for sale | 0 | 0 |
Total allocated assets | 25,858 | 27,119 |
Non-current financial liabilities | 507 | 695 |
Non-current lease liabilities | 988 | 1,223 |
Deferred tax liabilities | 86 | 82 |
Current financial liabilities | 612 | 1,458 |
Current lease liabilities | 480 | 486 |
Liabilities associated with non-current assets and disposal groups held for sale | 0 | 0 |
Total allocated liabilities | 15,756 | 16,869 |
Operating segments | VMO2 |  |  |
Disclosure of operating segments [line items] |  |  |
Fixed Assets | 0 | 0 |
Rights of use | 0 | 0 |
Investments accounted for by the equity method | 7,641 | 7,774 |
Financial assets and other non-current assets | 0 | 0 |
Deferred tax assets | 0 | 0 |
Current financial assets | 0 | 0 |
Non-current assets and disposal groups held for sale | 0 | 0 |
Total allocated assets | 7,641 | 7,774 |
Non-current financial liabilities | 0 | 0 |
Non-current lease liabilities | 0 | 0 |
Deferred tax liabilities | 0 | 0 |
Current financial liabilities | 0 | 0 |
Current lease liabilities | 0 | 0 |
Liabilities associated with non-current assets and disposal groups held for sale | 0 | 0 |
Total allocated liabilities | 0 | 0 |
Operating segments | Telefónica Germany |  |  |
Disclosure of operating segments [line items] |  |  |
Fixed Assets | 10,710 | 11,114 |
Rights of use | 3,064 | 3,203 |
Investments accounted for by the equity method | 0 | 0 |
Financial assets and other non-current assets | 728 | 962 |
Deferred tax assets | 604 | 538 |
Current financial assets | 107 | 10 |
Non-current assets and disposal groups held for sale | 0 | 0 |
Total allocated assets | 17,805 | 18,565 |
Non-current financial liabilities | 474 | 1,235 |
Non-current lease liabilities | 2,401 | 2,559 |
Deferred tax liabilities | 290 | 254 |
Current financial liabilities | 771 | 286 |
Current lease liabilities | 606 | 555 |
Liabilities associated with non-current assets and disposal groups held for sale | 0 | 0 |
Total allocated liabilities | 9,373 | 9,937 |
Operating segments | Telefónica Brazil |  |  |
Disclosure of operating segments [line items] |  |  |
Fixed Assets | 15,348 | 18,749 |
Rights of use | 2,058 | 2,258 |
Investments accounted for by the equity method | 4 | 3 |
Financial assets and other non-current assets | 1,004 | 1,054 |
Deferred tax assets | 278 | 406 |
Current financial assets | 32 | 55 |
Non-current assets and disposal groups held for sale | 0 | 0 |
Total allocated assets | 22,277 | 26,114 |
Non-current financial liabilities | 362 | 688 |
Non-current lease liabilities | 1,666 | 1,817 |
Deferred tax liabilities | 798 | 927 |
Current financial liabilities | 270 | 48 |
Current lease liabilities | 702 | 725 |
Liabilities associated with non-current assets and disposal groups held for sale | 0 | 0 |
Total allocated liabilities | 8,743 | 9,837 |
Operating segments | Telefónica Hispam |  |  |
Disclosure of operating segments [line items] |  |  |
Fixed Assets | 5,627 | 6,742 |
Rights of use | 1,177 | 1,179 |
Investments accounted for by the equity method | 187 | 219 |
Financial assets and other non-current assets | 1,434 | 1,374 |
Deferred tax assets | 842 | 738 |
Current financial assets | 394 | 272 |
Non-current assets and disposal groups held for sale | 79 | 273 |
Total allocated assets | 14,204 | 15,019 |
Non-current financial liabilities | 6,906 | 6,164 |
Non-current lease liabilities | 1,010 | 1,111 |
Deferred tax liabilities | 284 | 601 |
Current financial liabilities | 765 | 768 |
Current lease liabilities | 444 | 476 |
Liabilities associated with non-current assets and disposal groups held for sale | 33 | 37 |
Total allocated liabilities | 14,265 | 13,720 |
Eliminations |  |  |
Disclosure of operating segments [line items] |  |  |
Fixed Assets | 0 | (12) |
Rights of use | (59) | (74) |
Investments accounted for by the equity method | (62) | 0 |
Financial assets and other non-current assets | (4,830) | (4,564) |
Deferred tax assets | 0 | 0 |
Current financial assets | (2,424) | (2,955) |
Non-current assets and disposal groups held for sale | 0 | 0 |
Total allocated assets | (11,988) | (13,363) |
Non-current financial liabilities | (4,691) | (4,370) |
Non-current lease liabilities | (30) | (46) |
Deferred tax liabilities | 0 | 0 |
Current financial liabilities | (3,731) | (5,819) |
Current lease liabilities | (42) | (23) |
Liabilities associated with non-current assets and disposal groups held for sale | 0 | 0 |
Total allocated liabilities | (11,892) | (13,294) |
Telefónica, S.A. |  |  |
Disclosure of operating segments [line items] |  |  |
Fixed Assets | 47,775 | 53,022 |
Rights of use | 7,907 | 8,448 |
Investments accounted for by the equity method | 8,375 | 8,590 |
Financial assets and other non-current assets | 7,403 | 7,268 |
Deferred tax assets | 6,673 | 6,240 |
Current financial assets | 1,800 | 1,078 |
Non-current assets and disposal groups held for sale | 138 | 273 |
Total allocated assets | 100,502 | 104,324 |
Non-current financial liabilities | 33,192 | 33,360 |
Non-current lease liabilities | 6,077 | 6,708 |
Deferred tax liabilities | 2,905 | 2,702 |
Current financial liabilities | 5,590 | 3,701 |
Current lease liabilities | 2,226 | 2,239 |
Liabilities associated with non-current assets and disposal groups held for sale | 33 | 37 |
Total allocated liabilities | € 77,753 | € 77,228 |

X
- Definition The amount of a present economic resource controlled by the entity as a result of past events. Economic resource is a right that has the potential to produce economic benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2024-01-01 -Paragraph 93 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_a&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2024-01-01 -Paragraph 28 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_28_c&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2024-01-01 -Paragraph 93 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_e&doctype=Standard -URIDate 2024-03-27 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2024-01-01 -Paragraph 23 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_23&doctype=Standard -URIDate 2024-03-27 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2024-01-01 -Paragraph 93 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_b&doctype=Standard -URIDate 2024-03-27 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_Assets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of current financial assets. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_25&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_CurrentFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of current financial liabilities. [Refer: Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_25&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_CurrentFinancialLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of current lease liabilities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2024-01-01 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_47_b&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_CurrentLeaseLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amounts of income taxes recoverable in future periods in respect of: (a) deductible temporary differences; (b) the carryforward of unused tax losses; and (c) the carryforward of unused tax credits. [Refer: Temporary differences [member]; Unused tax credits [member]; Unused tax losses [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph o -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_o&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 56 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_56&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_DeferredTaxAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amounts of income taxes payable in future periods in respect of taxable temporary differences. [Refer: Temporary differences [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph o -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_o&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 56 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_56&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_DeferredTaxLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_DisclosureOfOperatingSegmentsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of investments in associates accounted for using the equity method. [Refer: Total for all associates [member]; Investments accounted for using equity method] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of a present obligation of the entity to transfer an economic resource as a result of past events. Economic resource is a right that has the potential to produce economic benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2024-01-01 -Paragraph 93 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_a&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2024-01-01 -Paragraph 93 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_e&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2024-01-01 -Paragraph 28 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_28_d&doctype=Standard -URIDate 2024-03-27 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2024-01-01 -Paragraph 23 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_23&doctype=Standard -URIDate 2024-03-27 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2024-01-01 -Paragraph 93 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_b&doctype=Standard -URIDate 2024-03-27 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_Liabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of liabilities included in disposal groups classified as held for sale. [Refer: Liabilities; Disposal groups classified as held for sale [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2024-01-01 -Paragraph 38 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2024-en-r&anchor=para_38&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph p -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_p&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of non-current assets or disposal groups classified as held for sale or as held for distribution to owners. [Refer: Non-current assets or disposal groups classified as held for distribution to owners; Non-current assets or disposal groups classified as held for sale] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph j -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_j&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of non-current financial liabilities. [Refer: Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_25&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_NoncurrentFinancialLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of non-current lease liabilities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2024-01-01 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_47_b&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_NoncurrentLeaseLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. Note that right-of-use assets are not included. [Contrast: Property, plant and equipment including right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_PropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of assets that represent a lessee's right to use an underlying asset for the lease term that do not meet the definition of investment property. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2024-01-01 -Paragraph 53 -Subparagraph j -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_53_j&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2024-01-01 -Paragraph 47 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_47_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_RightofuseAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Non-Current Financial Assets And Other Non-Current Assets + References No definition available. + Details
Name: | tef_NonCurrentFinancialAssetsAndOtherNonCurrentAssets
Namespace Prefix: | tef_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | ifrs-full_SegmentsAxis=ifrs-full_AllOtherSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentConsolidationItemsAxis=ifrs-full_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=tef_TelefonicaSpainMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | ifrs-full_SegmentsAxis=tef_TelefonicaGermanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=tef_TelefonicaBrazilMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=tef_TelefnicaHispamMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentConsolidationItemsAxis=ifrs-full_EliminationOfIntersegmentAmountsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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