Equity (Reconciliation of Ordinary Shares) (Details) - USD ($) shares in Millions	3 Months Ended					9 Months Ended
	Sep. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023
Stock Repurchased During Period, Value						$ 460,000,000
Ordinary shares
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (shares)	252.8	253.3	256.2	258.3	259.7	253.3
Shares issued under incentive plans, net						1.4
Repurchase of ordinary shares (shares)	(0.8)	(1.6)	(1.6)	(2.3)	(1.9)	(2.4)
Ending balance (shares)	252.3	252.5	254.8	256.2	258.3	252.3
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