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Derivative Financial Instruments and Risk Management Policies - Country Risk (Details) € in Millions | 12 Months Ended
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Dec. 31, 2024 EUR (€)
Disclosure of financial liabilities [line items] |
Borrowings | € 27,161
Proportion of net financial debt held (as a percent) | 6.50%
Telefonica Hispanoamerica |
Disclosure of financial liabilities [line items] |
Borrowings | € 1,768
Net repatriation of funds to Spain | 364
Net repatriation of funds from dividends received | 377
Net repatriation of funds, fees | 266
Net repatriation of funds, loan payments | € 279

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