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Appendix V: Interest-Bearing Debt (Details) € in Millions, $ in Millions | Dec. 31, 2022 EUR (€) | Jan. 26, 2022 USD ($) | Jan. 13, 2022 EUR (€) | Dec. 31, 2021 EUR (€)
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Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | € 83,706 |  |  | € 84,794
Telefonica, S.A. | Structured financing due January 31, 2023 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 12 |  |  |
Borrowings | 12 |  |  | 72
Telefonica, S.A. | Structured financing due October 31, 2023 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 27 |  |  |
Borrowings | 25 |  |  | 89
Telefonica, S.A. | Structured financing due March 11, 2026 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 238 |  |  |
Borrowings | 223 |  |  | 288
Telefonica, S.A. | Structured financing due March 11, 2026 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 161 |  |  |
Borrowings | 161 |  |  | 221
Telefonica, S.A. | Credit Facility due March 01, 2023 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 5,500 |  |  |
Borrowings | 0 |  |  | 0
Telefonica, S.A. | Bilateral Loan Due December 15, 2032 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 0 |  |  |
Borrowings | 150 |  |  | 0
Telefonica, S.A. | Bilateral Loan Due June 23, 2033 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 125 |  |  |
Borrowings | 0 |  |  | 0
Telefonica, S.A. | Sustainability-linked Syndicated Loan Due January 13, 2026 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount |  |  | € 5,500 |
Telefónica Germany GmbH & Co. OHG | BEI Financing due June 13, 2025 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 0 |  |  |
Borrowings | 183 |  |  | 258
Telefónica Germany GmbH & Co. OHG | Syndicated Loan Due December 17, 2026 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 750 |  |  |
Borrowings | 0 |  |  | 0
Telefónica Germany GmbH & Co. OHG | BEI Financing (Tranche 1) due June 18, 2029 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 0 |  |  |
Borrowings | 300 |  |  | 300
Telefónica Germany GmbH & Co. OHG | BEI Financing (Tranche 2) due July 14, 2029 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 0 |  |  |
Borrowings | 150 |  |  | 150
Colombia Telecomunicaciones S.A. E.S.P. | Bilateral Loan due March 24, 2025 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 0 |  |  |
Borrowings | 0 |  |  | 117
Colombia Telecomunicaciones S.A. E.S.P. | Bilateral loan due March 19, 2025 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 0 |  |  |
Borrowings | 97 |  |  | 111
Colombia Telecomunicaciones S.A. E.S.P. | Bilateral Loan Due January 26, 2022 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Early repayment of debt | $ |  | $ 132 |  |
Telxius Telecom, S.A. | Syndicated loan due December 1, 2024 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 300 |  |  |
Borrowings | 201 |  |  | 162
Telefónica Móviles Chile, S.A. | Bilateral Loan due September 29, 2023 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 0 |  |  |
Borrowings | 133 |  |  | 124
Bluevia Fibra, S.L.U. | Syndicated loan due December 20, 2027 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 360 |  |  |
Borrowings | 245 |  |  | 0
Telefónica Brasil, S.A. | Bilateral Loan Due September 28, 2023 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Contractual limit amount | 0 |  |  |
Borrowings | € 199 |  |  | € 0

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