XML 189 R170.htm IDEA: XBRL DOCUMENT v3.25.0.1

Equity - Equity Attributable To Non-Controlling Interest Narrative (Details) - EUR (€) € in Millions					1 Months Ended		12 Months Ended
	Mar. 24, 2023	Feb. 01, 2023	Jan. 31, 2023	Dec. 20, 2022	Dec. 31, 2023	Jan. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure of reserves within equity [line items]
Acquisitions and disposals of non-controlling interests and business combinations (Notes 2 and 17)							€ 1,438	€ 1,579	€ (781)
Pontegadea Inversiones, S.L.
Disclosure of reserves within equity [line items]
Cash received from income taxes receivable			€ 88			€ 88
Cash received from income taxes receivable (in percentage)			9.99%			9.99%
Pontel Participaciones, S.L. Holding company
Disclosure of reserves within equity [line items]
Share capital amount			€ 111			€ 111
Pontel Participaciones, S.L. Holding company | Telxius Telecom, S.A.
Disclosure of reserves within equity [line items]
Percentage of voting equity interests acquired			40.00%			40.00%
Proportion of voting rights held in associate (in percentage)			60.00%
KKR Alameda Aggregator L.P.
Disclosure of reserves within equity [line items]
Cash received from income taxes receivable			€ 351			€ 351
Cash received from income taxes receivable (in percentage)			40.00%			40.00%
KKR Alameda Aggregator L.P. | Telxius Telecom, S.A.
Disclosure of reserves within equity [line items]
Percentage of voting equity interests acquired							40.00%
Total
Disclosure of reserves within equity [line items]
Increase (decrease) through disposal of subsidiary, equity	€ 46
Acquisitions and disposals of non-controlling interests and business combinations (Notes 2 and 17)							€ (12)	0	(936)
Non-controlling interests
Disclosure of reserves within equity [line items]
Increase (decrease) through disposal of subsidiary, equity	€ 585
Acquisitions and disposals of non-controlling interests and business combinations (Notes 2 and 17)							1,450	€ 1,579	155
Telefónica Deutschland Holding A.G.
Disclosure of reserves within equity [line items]
Increase (decrease) through disposal of subsidiary, equity					€ (816)		(1,019)
Telefónica Deutschland Holding A.G. | Total
Disclosure of reserves within equity [line items]
Acquisitions and disposals of non-controlling interests and business combinations (Notes 2 and 17)							(28)
Telefónica Deutschland Holding A.G. | Non-controlling interests
Disclosure of reserves within equity [line items]
Acquisitions and disposals of non-controlling interests and business combinations (Notes 2 and 17)							€ 1,057
Pontel Participaciones, S.L. Holding company
Disclosure of reserves within equity [line items]
Proportion of ownership interest (as a percent)		70.00%	83.35%
Pontel Participaciones, S.L. Holding company | Pontegadea Inversiones, S.L.
Disclosure of reserves within equity [line items]
Proportion of voting rights held in subsidiary (as a percent)		30.00%	16.65%
Telxius Telecom, S.A.
Disclosure of reserves within equity [line items]
Proportion of ownership interest (as a percent)							70.00%
Percentage of voting equity interests acquired					40.00%			40.00%
Increase (decrease) in income taxes receivable						€ 876
Bluevia Fibra S.L.U.
Disclosure of reserves within equity [line items]
Increase (decrease) through disposal of subsidiary, equity									€ (23)
Proportion of ownership interest (as a percent)							55.00%
Bluevia Fibra S.L.U. | Vauban/CAA
Disclosure of reserves within equity [line items]
Proportion of voting rights held in subsidiary (as a percent)				45.00%
Proportion of voting rights held in associate (in percentage)				45.00%
Bluevia Fibra S.L.U. | Non-controlling interests
Disclosure of reserves within equity [line items]
Acquisitions and disposals of non-controlling interests and business combinations (Notes 2 and 17)				€ (23)

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

X

- Definition

The increase (decrease) in the entity's equity resulting from the change in the equity of subsidiaries. [Refer: Total for all subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 106
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_IncreaseDecreaseThroughChangeInEquityOfSubsidiaries
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The increase (decrease) in equity resulting from the disposal of subsidiaries. [Refer: Total for all subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 106
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_IncreaseDecreaseThroughDisposalOfSubsidiary
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The nominal value of capital issued.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 78
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_78_e&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_IssuedCapital
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The percentage of voting equity interests acquired 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 c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B64_c&doctype=Appendix&subtype=B
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_PercentageOfVotingEquityInterestsAcquired
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The proportion of ownership interest in a subsidiary attributable to 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_ProportionOfOwnershipInterestInSubsidiary
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The proportion of the voting rights in an associate held by the entity. [Refer: Total for all associates [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_ProportionOfVotingPowerHeldInAssociate
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

Cash Received From Income Taxes Receivable

+ References

No definition available.

+ Details

Name:	tef_CashReceivedFromIncomeTaxesReceivable
Namespace Prefix:	tef_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Cash Received From Income Taxes Receivable, Percentage

+ References

No definition available.

+ Details

Name:	tef_CashReceivedFromIncomeTaxesReceivablePercentage
Namespace Prefix:	tef_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Increase (Decrease) In Income Taxes Receivable Asset

+ References

No definition available.

+ Details

Name:	tef_IncreaseDecreaseInIncomeTaxesReceivableAsset
Namespace Prefix:	tef_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	dei_LegalEntityAxis=tef_PontegadeaInversionesSLMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=tef_PontelParticipacionesSLMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=tef_TelxiusTelecomSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=tef_KKRAlamedaAggregatorLPMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ComponentsOfEquityAxis=ifrs-full_EquityAttributableToOwnersOfParentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ComponentsOfEquityAxis=ifrs-full_NoncontrollingInterestsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelefonicaDeutschlandHoldingAGMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_PontelParticipacionesSLMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tef_TelxiusTelecomSAMember
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:	dei_LegalEntityAxis=tef_VaubanCAAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: