Income Taxes - Provision For Income Taxes From Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current:
Federal U.S.	$ 42.5	$ 17.7	$ 13.1
Non-U.S.	22.4	26.9	13.5
State and local	8.6	4.4	0.9
Deferred:
Federal U.S.	(31.3)	(2.2)	(13.1)
Non-U.S.	11.3	(57.5)	(72.7)
State and local	(7.6)	1.7	(4.2)
Income tax provision (benefit)	$ 45.9	$ (9.0)	$ (62.5)