Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net earnings	$ 53.5	$ 97.0
Other comprehensive (loss) income:
Foreign currency translation adjustments	(30.6)	47.7
Translation adjustments on net investment hedge, net of income taxes of $5.1 and $(4.8), respectively	17.4	(16.4)
Translation adjustments of long-term intercompany loans	11.0	7.6
Defined benefit pension plans and retiree health care plan, net of income taxes of $0.1 and $0.2, respectively	0.2	0.5
Total other comprehensive (loss) income	(2.0)	39.4
Comprehensive income	$ 51.5	$ 136.4