Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net earnings	$ 129.2	$ 123.9	$ 316.3	$ 295.3
Other comprehensive loss:
Foreign currency translation adjustments	11.8	(32.4)	33.7	(136.6)
Translation adjustments on net investment hedge, net of income taxes of $(3.2), $(0.4), $(8.8) and $11.4, respectively	(5.5)	(0.6)	(15.7)	20.3
Translation adjustments of long-term intercompany loans	(11.2)	(17.4)	(54.3)	3.7
Unrealized gain (loss) on investments, net of income taxes of $0.2, $(0.1), $0.3 and $(0.4), respectively	0.6	(0.4)	1.1	(2.0)
Defined benefit pension plans and retiree health care plan, net of income taxes of $(1.0), $0.2, $(1.3) and $0.7, respectively	(3.1)	0.7	(3.5)	2.0
Total other comprehensive loss	(7.4)	(50.1)	(38.7)	(112.6)
Comprehensive income	$ 121.8	$ 73.8	$ 277.6	$ 182.7