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Other operating expenses - Additional Information (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Analysis of income and expense [abstract]      
Other operating expense € 4,382 € 3,443 [1] € 2,523 [1]
[1] Figures for comparative periods (2023 and 2022) have been re-presented on a consistent basis to reflect the classification of Opella as a discontinued operation