Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net earnings	$ 865.8	$ 755.2	$ 608.4
Other comprehensive income (loss), net of income taxes:
Foreign currency translation adjustments	9.7	(178.7)	(68.7)
Pension and post-retirement plan benefit adjustments	(10.1)	38.0	24.8
Total other comprehensive income (loss), net of income taxes	(0.4)	(140.7)	(43.9)
Comprehensive income	$ 865.4	$ 614.5	$ 564.5