The gains (losses) arising from sale and leaseback transactions.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2023-01-01
-Paragraph 53
-Subparagraph i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53_i&doctype=Standard
-URIDate 2023-03-23

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- Definition

Additions to Lease Liabilities

+ References

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- Definition

Additions to Lease Liabilities related to Fixed Asset Sale and Leaseback Transaction

+ References

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- Definition

[Line Items] for Disclosure of finance lease and operating lease by lessee [Table]

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- Definition

Exposure Arising From Leases Not Yet Commenced To Which Lessee Is Committed

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- Definition

Transfers and Others of Lease Liabilities

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Lease Liabilities - Narrative (Details) - EUR (€) € in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure of finance lease and operating lease by lessee [Line Items]
Additions related to fixed asset sale and leaseback transactions	€ 21	€ 125
Capital gains arising from sale and leaseback transactions	105	381	€ 263
Additions	2,382	2,487
Lease liabilities not yet commenced	1,117	1,569
Transfers and others	€ (88)	223
Oi Group
Disclosure of finance lease and operating lease by lessee [Line Items]
Additions		117
Incremental Group
Disclosure of finance lease and operating lease by lessee [Line Items]
Additions		2
BE-terna
Disclosure of finance lease and operating lease by lessee [Line Items]
Additions		5
Telefónica El Salvador
Disclosure of finance lease and operating lease by lessee [Line Items]
Transfers and others		€ 264