Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net earnings	$ 608.4	$ 1,613.3	$ 738.9
Other comprehensive income (loss), net of income taxes:
Foreign currency translation adjustments	(68.7)	63.5	50.5
Pension adjustments	24.8	(12.7)	(20.2)
Total other comprehensive income (loss), net of income taxes	(43.9)	50.8	30.3
Comprehensive income	$ 564.5	$ 1,664.1	$ 769.2