Equity (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Securities Repurchase Program
Repurchases of common stock	$ 385.2	$ 886.5	$ 293.5
Securities Repurchase Program
Securities Repurchase Program
Repurchases of common stock (in shares)	2,640,152	8,065,707	3,112,404
Repurchases of common stock	$ 358.7	$ 869.3	$ 280.6
Repurchased shares, average price (in dollars per share)	$ 135.86	$ 107.78	$ 90.13
Amount authorized to be repurchased	$ 215.5
Acquired Employee Equity Awards
Securities Repurchase Program
Repurchases of common stock (in shares)	168,464	148,440	149,176
Repurchases of common stock	$ 23.5	$ 17.2	$ 12.9
Repurchased shares, average price (in dollars per share)	$ 139.45	$ 115.97	$ 86.78