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Equity-based compensation (Tables)
6 Months Ended
Jun. 30, 2024
Share-Based Payment Arrangements [Abstract]  
Summary of unvested share movements
The below table summarizes unvested share movements for all Alcon equity-based incentive plans for the six months ended June 30, 2024 and 2023:
Six months ended June 30
(shares in millions)20242023
Unvested at January 14.9 4.8 
Granted2.2 2.2 
Vested(1.7)(1.8)
Forfeited(0.1)(0.1)
Unvested at June 305.3 5.1