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OTHER INFORMATION BY NATURE - Narrative (Details)
€ in Thousands
12 Months Ended
Dec. 31, 2022
EUR (€)
employee
Dec. 31, 2021
EUR (€)
employee
Dec. 31, 2020
EUR (€)
employee
Disclosure of detailed information about intangible assets [line items]      
Compensation related to product development € 527,316 € 483,747 € 389,927
Average number of employees | employee 4,691 4,571 4,428
Depreciation expense € 259,849 € 230,097 € 217,952
Accumulated depreciation and amortisation      
Disclosure of detailed information about intangible assets [line items]      
Amortization € 286,376 € 225,892 € 208,685