v3.25.4
LOSS PER SHARE - Calculation of Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Earnings Per Share [Abstract]      
Net loss attributable to Bausch + Lomb Corporation $ (360) $ (317) $ (260)
Basic weighted-average common shares outstanding (in shares) 353.8 351.8 350.5
Diluted effect of stock options and RSUs (in shares) 0.0 0.0 0.0
Diluted weighted-average common shares outstanding (in shares) 353.8 351.8 350.5
Loss per share attributable to Bausch + Lomb Corporation      
Basic (in usd per share) $ (1.02) $ (0.90) $ (0.74)
Diluted (in usd per share) $ (1.02) $ (0.90) $ (0.74)