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RESEARCH AND DEVELOPMENT COSTS (Details) - EUR (€)
€ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Schedule of Finite-Lived Intangible Assets [Line Items]      
Research and development costs expensed during the year € 538,903 € 517,842 € 573,632
Total research and development costs 881,559 775,572 768,104
Development costs      
Schedule of Finite-Lived Intangible Assets [Line Items]      
Amortization of capitalized development costs € 342,656 € 257,730 € 194,472