Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income before income taxes:
United States	$ 848.0	$ 528.9	$ 347.5
International	135.3	128.1	111.8
Income from continuing operations before income taxes	983.3	657.0	459.3
Provision for income taxes — current:
Federal	165.6	120.3	43.3
State	35.6	24.2	13.0
International	32.3	23.5	22.7
Total provision — current	233.5	168.0	79.0
Provision for income taxes — deferred:
Federal	(8.5)	(26.2)	8.8
State	(8.0)	(3.9)	1.9
International	0.3	2.3	(1.5)
Total provision — deferred	(16.2)	(27.8)	9.2
TOTAL PROVISION FOR INCOME TAXES	$ 217.3	$ 140.2	$ 88.2