Stockholders Equity and Noncontrolling Interests, Stock Repurchase (Details) - USD ($) shares in Millions, $ in Millions		1 Months Ended	3 Months Ended		9 Months Ended
	Apr. 27, 2021	Oct. 24, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Stockholders' Equity
Treasury stock retired (in dollars)			$ 0.0	$ 0.0	$ 0.0	$ 0.0
Payments for shares repurchased (in dollars)			$ 149.3	$ 170.1	$ 469.8	$ 560.1
2021 Stock Repurchase Program
Stockholders' Equity
Value of shares authorized to be repurchased (in dollars)	$ 2,000.0
Repurchase of stock program, period	3 years
Number of treasury shares retired					4.1	7.0
Treasury stock retired (in dollars)					$ 320.5	$ 519.3
Number of shares repurchased			1.7	2.4	5.8	7.6
Payments for shares repurchased (in dollars)			$ 149.3	$ 170.1	$ 469.8	$ 560.1
Subsequent Event | 2021 Stock Repurchase Program
Stockholders' Equity
Number of shares repurchased		0.4
Payments for shares repurchased (in dollars)		$ 33.5
Value of shares remaining that may be repurchased under the stock repurchase program (in dollars)		$ 308.3