v3.26.1
(Loss) Earnings per Share (Basic and Diluted Earnings Per Ordinary Share) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Earnings Per Share [Abstract]        
Net (loss) earnings attributable to Viatris Inc. common shareholders $ (118.8) $ (4.6) $ 57.6 $ (3,046.6)
Weighted average shares outstanding 1,163.3 1,173.0 1,159.4 1,182.7
Basic (loss) earnings per share attributable to Viatris Inc. shareholders $ (0.10) $ 0 $ 0.05 $ (2.58)
Weighted average number diluted shares outstanding adjustment, stock-based awards and warrants 0.0 0.0 14.4 0.0
Total dilutive shares outstanding 1,163.3 1,173.0 1,173.8 1,182.7
Diluted earnings (loss) per ordinary share $ (0.10) $ 0 $ 0.05 $ (2.58)