Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Taxes [Abstract]
Effective tax rate	25.50%	37.20%
Income taxes, impact of previously unrecognized tax benefits	$ 10.0
Income taxes, impact of real estate repositioning costs and increase in U.K. statutory tax rate	6.0
Charges arising from the effects of the war in Ukraine	0.0	$ 113.4
Income tax expense related to charges arising from the effects of the war in Ukraine		$ 4.8
Unrecognized tax benefits	159.8
Unrecognized tax benefits that would impact effective tax rate	$ 154.1