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Cash Flow Detail - Financing Activities, Debt (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of fair value measurement of equity [line items] |  |  |
Proceeds on issue of debentures and bonds and other debts | € 1,787 | € 967 | € 1,746
Proceeds on loans, borrowings and promissory notes | 1,760 | 1,707 | 839
Repayments of debentures and bonds, and other debts | (1,140) | (1,910) | (3,541)
Repayments of loans, borrowings and promissory notes | (1,123) | (1,465) | (3,077)
Lease principal payments (Note 20) | (2,143) | (2,114) | (1,996)
Financed spectrum licenses payments (Note 21) | (90) | (133) | (549)
Payments for investments in spectrum use licenses financed without explicit interest (Notes 2 and 21) | (120) | (112) | (108)
Other financed operational payments (Note 18) | (12) | 0 | (41)
Financed operating payments and investments in property, plant and equipment and intangible assets payments | (222) | (245) | (698)
Telefónica Brazil |  |  |
Disclosure of fair value measurement of equity [line items] |  |  |
Proceeds on loans, borrowings and promissory notes | 0 | 0 | 199
Bilateral loans of Telefonica S.A. |  |  |
Disclosure of fair value measurement of equity [line items] |  |  |
Proceeds on loans, borrowings and promissory notes | 390 | 275 | 150
Repayments of loans, borrowings and promissory notes | 0 | 0 | (117)
Syndicated bilateral loan of Telxius Telecom, S.A. |  |  |
Disclosure of fair value measurement of equity [line items] |  |  |
Proceeds on loans, borrowings and promissory notes | 0 | 100 | 100
Repayments of loans, borrowings and promissory notes | 0 | 0 | (70)
Syndicated provision of Bluevia Fibra S.L.U. |  |  |
Disclosure of fair value measurement of equity [line items] |  |  |
Proceeds on loans, borrowings and promissory notes | 75 | 10 | 245
Debt hedging derivatives |  |  |
Disclosure of fair value measurement of equity [line items] |  |  |
Proceeds on loans, borrowings and promissory notes | 385 | 20 | 89
Repayments of loans, borrowings and promissory notes | (20) | 33 | (715)
New Promissory Note Debt |  |  |
Disclosure of fair value measurement of equity [line items] |  |  |
Proceeds on loans, borrowings and promissory notes | 478 | 504 | 7
Others |  |  |
Disclosure of fair value measurement of equity [line items] |  |  |
Proceeds on loans, borrowings and promissory notes | 432 | 798 | 49
Repayments of loans, borrowings and promissory notes | (1,103) | (1,498) | (2,175)
Telefonica Emisiones EMTN Bond |  |  |
Disclosure of fair value measurement of equity [line items] |  |  |
Proceeds on issue of debentures and bonds and other debts | 1,750 | 850 | 1,100
Telefónica Móviles Chile, S.A. Wireless communications services operator |  |  |
Disclosure of fair value measurement of equity [line items] |  |  |
Proceeds on issue of debentures and bonds and other debts | 37 | 114 | 0
Telefónica Brazil |  |  |
Disclosure of fair value measurement of equity [line items] |  |  |
Proceeds on issue of debentures and bonds and other debts | 0 | 0 | 628
Others |  |  |
Disclosure of fair value measurement of equity [line items] |  |  |
Proceeds on issue of debentures and bonds and other debts | € 0 | € 3 | € 18

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