Condensed Consolidated Statements Of Comprehensive Earnings (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net earnings (loss)	$ 39.4	$ (168.5)	$ 60.2	$ (193.5)
Other comprehensive earnings (loss), before tax:
Foreign currency translation adjustment	452.0	196.6	(204.6)	(141.9)
Change in unrecognized gain and prior service cost related to defined benefit plans	6.6	0.0	5.0	0.2
Net unrealized gain on marketable securities	0.6	0.2	0.8	0.6
Other comprehensive earnings (loss), before tax	430.6	169.9	(236.5)	(83.9)
Income tax provision (benefit)	2.0	1.1	(8.8)	12.9
Other comprehensive earnings (loss), net of tax	428.6	168.8	(227.7)	(96.8)
Comprehensive earnings (loss)	468.0	0.3	(167.5)	(290.3)
Cash Flow Hedging
Other comprehensive earnings (loss), before tax:
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax	18.7	9.4	(32.7)	35.4
Net Investment Hedging
Other comprehensive earnings (loss), before tax:
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax	$ (47.3)	$ (36.3)	$ (5.0)	$ 21.8