Consolidated Statement of Comprehensive Earnings - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net earnings	$ 439.1	$ 393.7
Change in pension liability, net of taxes	0.3	1.0
Foreign currency translation, net of taxes	14.9	58.0
Change in fair value of derivative investments, net of taxes	45.2	56.8
Comprehensive earnings	499.5	509.5
Comprehensive earnings attributable to noncontrolling interests	0.5	12.2
Comprehensive earnings attributable to controlling interests	$ 499.0	$ 497.3