v3.25.4
Condensed unconsolidated financial information of Avantor, Inc. - balance sheets (Details) - USD ($)
shares in Millions, $ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Assets        
Total assets $ 11,794.7 $ 12,114.5    
Liabilities and stockholders’ equity        
Common stock including paid-in capital, 682.0 and 680.8 shares issued and outstanding 3,984.8 3,937.7    
Treasury stock at cost, 6.6 and 0.0 shares 75.7 0.0    
Accumulated earnings 1,672.8 2,203.0    
Accumulated other comprehensive loss (16.9) (184.0)    
Total stockholders’ equity $ 5,565.0 $ 5,956.7 $ 5,252.6 $ 4,855.4
Common stock, shares, outstanding (in shares) 682.0 680.8    
Unconsolidated Avantor, Inc        
Assets        
Investment in unconsolidated subsidiaries $ 5,565.0   5,956.7  
Total assets 5,565.0   5,956.7  
Liabilities and stockholders’ equity        
Common stock including paid-in capital, 682.0 and 680.8 shares issued and outstanding 3,984.8   3,937.7  
Treasury stock at cost, 6.6 and 0.0 shares 75.7 $ 0.0    
Accumulated earnings 1,672.8   2,203.0  
Accumulated other comprehensive loss (16.9)   (184.0)  
Total stockholders’ equity $ 5,565.0   $ 5,956.7  
Common stock, shares, outstanding (in shares) 682.0 680.8