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Inventories - Inventories (Detail) - EUR (€)
€ in Millions
Dec. 31, 2023
Dec. 31, 2022
Inventories [Abstract]    
Current raw materials and current production supplies € 1,309 € 1,541
Current work in progress 552 648
Current finished goods 1,629 1,860
Current inventories € 3,491 € 4,049