v3.26.1
Property, plant and equipment - Summary of Acquisitions and Capitalized Interest by Operating Segment (Details) - EUR (€)
€ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Disclosure of detailed information about property, plant and equipment [line items]    
Acquisitions € 763 € 702
Of which capitalized interest 23 22
Biopharma    
Disclosure of detailed information about property, plant and equipment [line items]    
Acquisitions 763 663
Biopharma | Of which Manufacturing & Supply    
Disclosure of detailed information about property, plant and equipment [line items]    
Acquisitions 594 453
OPAL JV Co    
Disclosure of detailed information about property, plant and equipment [line items]    
Acquisitions € 0 € 39