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Payables and Other Non-current Liabilities - Non-Current Debt For Spectrum Acquisistion (Details) - EUR (€) € in Millions	Dec. 31, 2024	Dec. 31, 2023
Trade And Other Payables [Line Items]
Debt for spectrum acquisition	€ 1,008	€ 1,184
Telefónica Spain
Trade And Other Payables [Line Items]
Debt for spectrum acquisition	63	69
Telefónica Colombia
Trade And Other Payables [Line Items]
Debt for spectrum acquisition	74	108
Telefónica Brazil
Trade And Other Payables [Line Items]
Debt for spectrum acquisition	177	211
Telefónica Germany
Trade And Other Payables [Line Items]
Debt for spectrum acquisition	690	791
Telefónica Uruguay
Trade And Other Payables [Line Items]
Debt for spectrum acquisition	€ 4	€ 5

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- Definition

The non-current portion of non-current borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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