v3.26.1
Basis of Presentation - Additional information (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2020
Basis of presentation.          
Assets € 19,712 € 21,405 € 20,992    
Equity 7,603 8,606 [1] 7,513 [1] € 7,977 [1]  
Liabilities 12,109 12,799 13,479    
Profit/(loss) for the year € 500 € 213 163 [1]    
Increase (decrease) due to corrections of prior period errors | Shanghai RAAS Blood Products Co., Ltd.          
Basis of presentation.          
Equity         € (457)
Investment in associate         € (457)
Biotek America LLC ("ITK JV") | Increase (decrease) due to corrections of prior period errors          
Basis of presentation.          
Assets     151    
Equity     (40)    
Liabilities     191    
Profit/(loss) for the year     € (17) € (23)  
[1] (See Note 2.d)