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Equity-Accounted Investees - Mecwins, S.A. (Details) - Mecwins, S.A - EUR (€)
€ in Millions
12 Months Ended
Oct. 22, 2018
Dec. 31, 2019
Dec. 31, 2018
Equity Accounted Investees      
Share capital increase € 2    
Ownership interest (as a percent) 24.99% 24.99% 24.99%
CRB Inverbio      
Equity Accounted Investees      
Share capital increase € 2