v3.26.1
Share Capital and Share Premium - Narrative (Details)
€ / shares in Units, $ / shares in Units, $ in Millions
 12 Months Ended
May 27, 2025
Jul. 19, 2023
USD ($)
shares
Jul. 18, 2023
€ / shares
shares
Jul. 18, 2023
$ / shares
shares
Dec. 31, 2025
EUR (€)
shares
Dec. 31, 2024
shares
Dec. 31, 2023
shares
Dec. 31, 2022
shares
Disclosure of classes of share capital [line items]                
Number of shares outstanding (in shares)         61,883,306 60,760,957 59,194,488 55,395,856
Maximum authorized increase of then outstanding share capital (as percent) 10.00%              
Period of outstanding share capital (in months) 18 months              
Maximum authorized increase in share capital | €         € 532,863      
Maximum authorized increase in number of shares (in shares)         5,328,634      
Global public offering on Nasdaq                
Disclosure of classes of share capital [line items]                
Number of shares issued (in shares)     2,244,899 2,244,899        
Global public offering on Nasdaq | Ordinary shares                
Disclosure of classes of share capital [line items]                
Number of shares issued (in shares)     663,918 663,918        
Share price (in USD/EURO per share) | € / shares     € 436.37          
Global public offering on Nasdaq | American depositary shares                
Disclosure of classes of share capital [line items]                
Number of shares issued (in shares)     1,580,981 1,580,981        
Share price (in USD/EURO per share) | $ / shares       $ 490.00        
Over-allotment option exercised by underwriters | American depositary shares                
Disclosure of classes of share capital [line items]                
Number of shares issued (in shares)   336,734            
Gross proceeds from issue of shares | $   $ 1,300            
Payments of stock issuance costs | $   66            
Expenses deducted from equity | $   1            
Net cash proceeds | $   $ 1,200