Income Taxes - Income Tax Data from Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income (loss) components:
United States	$ 164.6	$ 155.7	$ 199.4
International	354.9	306.1	309.7
Income from continuing operations before income tax	519.5	461.8	509.1
Current income tax expense (benefit):
United States – federal	41.3	32.6	21.1
United States – state and local	5.5	1.2	2.6
International	85.6	54.4	50.2
Total current income tax expense	132.4	88.2	73.9
Deferred income tax expense (benefit) components:
United States – federal	(14.1)	(0.2)	96.9
United States – state and local	(2.7)	3.1	15.5
International	(10.8)	0.0	3.3
Total deferred income tax expense (benefit)	(27.6)	2.9	115.7
Income tax expense	$ 104.8	$ 91.1	$ 189.6
Effective income tax rate	20.20%	19.70%	37.20%