Consolidated and Combined Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net earnings	$ 2,913.8	$ 1,044.5	$ 872.3
Other comprehensive income (loss), net of income taxes:
Foreign currency translation adjustments	(127.3)	136.6	(123.8)
Pension adjustments	3.6	1.6	(7.6)
Total other comprehensive income (loss), net of income taxes	(123.7)	138.2	(131.4)
Comprehensive income	$ 2,790.1	$ 1,182.7	$ 740.9