v3.26.1
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Millions
Total
Ordinary Shares
Retained Earnings
Accumulated Other Comprehensive Loss
Non-controlling Interest
Beginning balance (in shares) at Mar. 31, 2023   98,600      
Beginning balance at Mar. 31, 2023 $ 6,087.2 $ 4,486.4 $ 1,911.5 $ (320.7) $ 10.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income 380.1   378.2   1.8
Other comprehensive income (loss) (7.9)     (7.9)  
Repurchases of ordinary shares (in shares)   (100)      
Repurchases of ordinary shares (11.8) $ (10.2) (1.6)    
Equity compensation programs and other (in shares)   300      
Equity compensation programs and other 67.0 $ 67.0      
Dividends, Common Stock, Cash (200.6)   (200.6)    
Distributions to noncontrolling interest holders (1.6)       (1.6)
Contributions from noncontrolling interest holders 3.0       3.0
Other changes in noncontrolling interest (0.1)       (0.1)
Ending balance at Mar. 31, 2024 6,315.3 $ 4,543.2 2,087.6 (328.7) 13.2
Ending balance (in shares) at Mar. 31, 2024   98,900      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income 616.1   614.6   1.4
Other comprehensive income (loss) 36.3     36.3  
Repurchases of ordinary shares (in shares)   (1,000)      
Repurchases of ordinary shares (212.7) $ (205.6) (7.1)    
Equity compensation programs and other (in shares)   400      
Equity compensation programs and other 82.9 $ 82.9      
Dividends, Common Stock, Cash (219.9)   (219.9)    
Distributions to noncontrolling interest holders (2.1)       (2.1)
Contributions from noncontrolling interest holders 2.5       2.5
Divestiture of joint venture interest 2.6       2.6
Other changes in noncontrolling interest (0.1)       (0.1)
Ending balance at Mar. 31, 2025 $ 6,615.8 $ 4,420.4 2,475.3 (292.3) 12.4
Ending balance (in shares) at Mar. 31, 2025 98,300 98,300      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income $ 785.1   782.3   2.8
Other comprehensive income (loss) 179.2     179.2  
Repurchases of ordinary shares (in shares)   (1,000)      
Repurchases of ordinary shares (236.1) $ (236.1)      
Equity compensation programs and other (in shares)   500      
Equity compensation programs and other 96.6 $ 96.6      
Dividends, Common Stock, Cash (241.8)   (241.8)    
Distributions to noncontrolling interest holders (1.4)       (1.4)
Other changes in noncontrolling interest (0.1)       (0.1)
Ending balance at Mar. 31, 2026 $ 7,197.2 $ 4,280.9 $ 3,015.9 $ (113.1) $ 13.6
Ending balance (in shares) at Mar. 31, 2026 97,800 97,800