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STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($)
$ in Millions
Total
Ordinary shares
Additional paid-in capital
Treasury shares at cost
Accumulated other comprehensive income (loss)
Retained earnings
Balance at Dec. 31, 2019 $ 3,568.8 $ 0.8 $ 1,770.3 $ (8,092.7) $ 21.7 $ 9,868.7
Issuance of treasury shares under stock purchase plans, upon exercise of options and vesting of restricted stock units 216.8   145.4 71.4    
Treasury shares at cost (1,297.7)     (1,297.7)    
Stock-based compensation 112.5   112.5      
Other comprehensive income (loss), net of tax 19.0       19.0  
Fair value of awards attributable to pre-acquisition services 0.2   0.2      
Net income 846.6         846.6
Balance at Dec. 31, 2020 3,466.2 0.8 2,028.4 (9,319.0) 40.7 10,715.3
Issuance of treasury shares under stock purchase plans, upon exercise of options and vesting of restricted stock units 194.0   126.2 67.8    
Treasury shares at cost (1,299.5)     (1,299.5)    
Stock-based compensation 120.3   120.3      
Other comprehensive income (loss), net of tax (41.3)       (41.3)  
Fair value of awards attributable to pre-acquisition services 1.8   1.8      
Net income 815.6         815.6
Balance at Dec. 31, 2021 3,257.1 0.8 2,276.7 (10,550.7) (0.6) 11,530.9
Issuance of treasury shares under stock purchase plans, upon exercise of options and vesting of restricted stock units 141.1   92.6 48.5    
Treasury shares at cost (1,299.9)     (1,299.9)    
Stock-based compensation 131.4   131.4      
Other comprehensive income (loss), net of tax (97.3)       (97.3)  
Net income 796.9         796.9
Balance at Dec. 31, 2022 $ 2,929.3 $ 0.8 $ 2,500.7 $ (11,802.1) $ (97.9) $ 12,327.8