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Derivative Financial Instruments and Risk Management Policies - Exchange Rate Risk (Details) € in Millions, Bs. in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 EUR (€) | Dec. 31, 2023 EUR (€) | Dec. 31, 2022 EUR (€) | Dec. 31, 2024 VEB (Bs.) | Dec. 31, 2023 VEB (Bs.)
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |
Foreign currency transaction losses, net | € 113 | € 124 |  |  |
Net debt held as a hedging instrument | 27,161 |  |  |  |
Exchange gains | 2,199 | 1,837 | € 2,910 |  |
Venezuela |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |
Expense due to the effect of monetary correction for inflation | 67 | 161 |  |  |
Argentina |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |
Exchange gains | € 183 | € 48 | € 39 |  |
Latin American denominated borrowings |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |
Nominal amount of hedging instrument | 5,436 | 6,535 |  |  |
US Dollar denominated borrowings |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |
Nominal amount of hedging instrument | 1,166 | 657 |  |  |
Pounds Sterling denominated borrowings |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |
Nominal amount of hedging instrument | 46 | 82 |  |  |
VEB | Foreign currency exchange risk | Cash flow hedges |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |
Net debt held as a hedging instrument | € 120 | € 113 |  | Bs. 10,207 | Bs. 19,900
Latin American currencies vs USD |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |
Increase in exchange rate (in percentage) | 10.00% |  |  |  |

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