XML 282 R263.htm IDEA: XBRL DOCUMENT v3.25.0.1

Cash Flow Detail - Investing Activities, Proceeds and Payments on Companies (Details) € in Millions, R$ in Millions			12 Months Ended
	Oct. 01, 2024 EUR (€)	Oct. 01, 2024 BRL (R$)	Dec. 31, 2024 EUR (€)	Dec. 31, 2023 EUR (€)	Dec. 31, 2022 EUR (€)
Continuing And Discontinued Operations [Line Items]
Proceeds/(payments) on disposals of companies, net of cash and cash equivalents disposed			€ 220	€ 1,004	€ (115)
Payments on investments in companies, net of cash and cash equivalents acquired			(189)	(252)	(1,628)
Oi mobile assets acquisition (Note 2)
Continuing And Discontinued Operations [Line Items]
Payments on investments in companies, net of cash and cash equivalents acquired			0	(3)	(986)
Incremental acquisition (Note 5)
Continuing And Discontinued Operations [Line Items]
Payments on investments in companies, net of cash and cash equivalents acquired			0	0	(178)
BE-terna acquisition (Note 5)
Continuing And Discontinued Operations [Line Items]
Payments on investments in companies, net of cash and cash equivalents acquired			0	(5)	(328)
IPNET acquisition (Note 5)
Continuing And Discontinued Operations [Line Items]
Payments on investments in companies, net of cash and cash equivalents acquired	€ (10)	R$ (60)	(10)	0	0
Capital increase of UGG TopCo (Note 10)
Continuing And Discontinued Operations [Line Items]
Payments on investments in companies, net of cash and cash equivalents acquired			(91)	(73)	(50)
Capital increase of InfraCo Chile (Note 10)
Continuing And Discontinued Operations [Line Items]
Payments on investments in companies, net of cash and cash equivalents acquired			(6)	(46)	0
Loan to InfraCo Chile (Note 12)
Continuing And Discontinued Operations [Line Items]
Payments on investments in companies, net of cash and cash equivalents acquired			0	(46)	0
Loan to InfraCo Chile (Note 12)
Continuing And Discontinued Operations [Line Items]
Payments on investments in companies, net of cash and cash equivalents acquired			(38)	(33)	0
Others
Continuing And Discontinued Operations [Line Items]
Payments on investments in companies, net of cash and cash equivalents acquired			(44)	(46)	(86)
Tax associated with the sale of the tower division of Telxius
Continuing And Discontinued Operations [Line Items]
Proceeds/(payments) on disposals of companies, net of cash and cash equivalents disposed			0	876	0
Constitution of VMO2
Continuing And Discontinued Operations [Line Items]
Proceeds/(payments) on disposals of companies, net of cash and cash equivalents disposed			0	0	(256)
Sale of Telecommunications towers divisions of Telxius
Continuing And Discontinued Operations [Line Items]
Proceeds/(payments) on disposals of companies, net of cash and cash equivalents disposed			48	90	2
Tax associated with the sale of InfraCo
Continuing And Discontinued Operations [Line Items]
Proceeds/(payments) on disposals of companies, net of cash and cash equivalents disposed			0	0	(124)
Sale of Telefónica Móviles El Salvador
Continuing And Discontinued Operations [Line Items]
Proceeds/(payments) on disposals of companies, net of cash and cash equivalents disposed			0	0	116
Sale of fiber assets of Colombia Telecomunicaciones
Continuing And Discontinued Operations [Line Items]
Proceeds/(payments) on disposals of companies, net of cash and cash equivalents disposed			8	0	55
Deferred collection sale of T. Ireland
Continuing And Discontinued Operations [Line Items]
Proceeds/(payments) on disposals of companies, net of cash and cash equivalents disposed			0	0	35
Sale of China Unicom shares (Note 12)
Continuing And Discontinued Operations [Line Items]
Proceeds/(payments) on disposals of companies, net of cash and cash equivalents disposed			147	0	0
Others
Continuing And Discontinued Operations [Line Items]
Proceeds/(payments) on disposals of companies, net of cash and cash equivalents disposed			€ 17	€ 38	€ 57

X

- Definition

The aggregate cash flows arising from losing 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_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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] for Continuing And Discontinued Operations [Table]

+ References

No definition available.

+ Details

Name:	tef_ContinuingAndDiscontinuedOperationsLineItems
Namespace Prefix:	tef_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_BusinessCombinationsAxis=tef_GrupoOiMobileBusinessMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BusinessCombinationsAxis=tef_IncrementalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BusinessCombinationsAxis=tef_BETernaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	ifrs-full_BusinessCombinationsAxis=tef_UGGTopCoGmbHCoKGMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BusinessCombinationsAxis=tef_InfraCoSpAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BusinessCombinationsAxis=tef_InfraCoSpALoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BusinessCombinationsAxis=tef_OpalJvcoLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BusinessCombinationsAxis=tef_OtherInvestmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ContinuingAndDiscontinuedOperationsAxis=tef_TelxiusTowersTaxMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ContinuingAndDiscontinuedOperationsAxis=tef_VMEDO2UKLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ContinuingAndDiscontinuedOperationsAxis=tef_TelxiusTowersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ContinuingAndDiscontinuedOperationsAxis=tef_TaxAssociatedWithSaleOfInfraCoSpAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ContinuingAndDiscontinuedOperationsAxis=tef_TelefonicaMovilesElSalvadorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ContinuingAndDiscontinuedOperationsAxis=tef_FiberAssetsInColombiaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ContinuingAndDiscontinuedOperationsAxis=tef_TelfinIreleandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ContinuingAndDiscontinuedOperationsAxis=tef_ChinaUnicomBroadbanOnlineLimitedCorp.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ContinuingAndDiscontinuedOperationsAxis=tef_OtherCompaniesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: