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Ordinary shares - Narrative (Details) - € / shares
Mar. 31, 2022
Dec. 31, 2021
Class of Stock [Line Items]    
Ordinary shares, outstanding (in shares) 165,778,067 164,438,280
Ordinary shares, par value (in euros per share) € 0.10 € 0.10
Restricted Shares and Performance Share Awards    
Class of Stock [Line Items]    
Shares outstanding (in shares) 3,926,401  
Restricted Share Units    
Class of Stock [Line Items]    
Shares outstanding (in shares) 27,245