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Intangible Assets - Narrative (Details) € in Millions, R$ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 EUR (€) | Dec. 31, 2021 EUR (€) | Dec. 31, 2021 BRL (R$) | Apr. 20, 2022 EUR (€)
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Transfers and others | € 204 | € 215 |  |
Additions | 1,530 | 2,410 |  |
Impairments | 31 |  |  |
Oi Group |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets |  |  |  | € 539
Incremental Group |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets |  |  |  | 24
BE-terna Group |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets |  |  |  | € 77
Service concession arrangements and licenses |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Additions | 173 | 1,704 |  |
Transfers and others | 0 | 197 |  |
Additions | 173 | 1,188 |  |
Impairments | 19 |  |  |
Service concession arrangements and licenses | Telefónica Spain |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Additions |  | 352 |  |
Licences And Computer Software |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Impairments | 21 |  |  |
Telefónica Hispam | Service concession arrangements and licenses |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Additions | 125 | 131 |  |
Telefónica Brazil | Service concession arrangements and licenses |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Additions | € 35 |  |  |
Additions |  | 700 | R$ 4,459 |
Telefónica Brazil | Service concession arrangements and licenses | ANATEL |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Additions |  | 146 | 929 |
Telefónica Brazil | Service concession arrangements and licenses | EAF |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Additions |  | 330 | 2,104 |
Telefónica Brazil | Service concession arrangements and licenses | EACE |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Additions |  | 224 | R$ 1,426 |
Telefónica United Kingdom | Service concession arrangements and licenses |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Additions |  | 515 |  |
Telefónica Móviles El Salvador | Service concession arrangements and licenses |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Transfers and others |  | € 38 |  |

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