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Equity (Reconciliation of Ordinary Shares) (Details) - USD ($)
shares in Millions, $ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Sep. 30, 2023
Mar. 31, 2023
Sep. 30, 2024
Stock Repurchased During Period, Value           $ 926.0
Ordinary shares            
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Beginning balance (shares) 250.4 251.2 251.7 252.8 253.3 251.7
Shares issued under incentive plans, net           1.0
Repurchase of ordinary shares (shares) (0.8) (1.0) (1.2) (0.8) (1.6) (3.0)
Ending balance (shares) 249.7 250.4 251.2 252.3 252.5 249.7
Treasury Stock, Common            
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Beginning balance (shares)     24.5     24.5
Shares issued under incentive plans, net           0.0
Repurchase of ordinary shares (shares)           0.0
Ending balance (shares) 24.5         24.5