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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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The amount of exchange differences recognised in profit or loss that arise from foreign currency transactions, excluding those arising on financial instruments measured at fair value through profit or loss in accordance with IFRS 9. [Refer: At fair value [member]; Classes of financial instruments [domain]]

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