Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net earnings	$ 100.1	$ 33.2	$ 226.7	$ 90.7
Gross
Recognition of pension items	1.5	1.1	2.8	2.2
Unrealized (losses) on derivative instruments for net investment hedge	(7.7)	(6.0)	(1.7)	3.0
Unrealized (losses) gains on derivative instruments for cash flow hedge	(3.0)	(0.1)	3.1	(1.8)
Foreign currency translation adjustments	29.3	(9.8)	(84.9)	6.4
Other comprehensive income (loss)	20.1	(14.8)	(80.7)	9.8
Taxes
Recognition of pension items	(0.4)	(0.2)	(0.7)	(0.5)
Unrealized (losses) on derivative instruments for net investment hedge	1.9	1.5	0.4	(0.7)
Unrealized (losses) gains on derivative instruments for cash flow hedge	0.8	0.1	(0.8)	0.5
Foreign currency translation adjustments	2.9	0.6	(2.2)	(0.1)
Other comprehensive income (loss)	5.2	2.0	(3.3)	(0.8)
Net
Recognition of pension items	1.1	0.9	2.1	1.7
Unrealized (losses) on derivative instruments for net investment hedge	(5.8)	(4.5)	(1.3)	2.3
Unrealized (losses) gains on derivative instruments for cash flow hedge	(2.2)	0.0	2.3	(1.3)
Foreign currency translation adjustments	32.2	(9.2)	(87.1)	6.3
Other comprehensive income (loss)	25.3	(12.8)	(84.0)	9.0
Comprehensive income, net of taxes	$ 125.4	$ 20.4	$ 142.7	$ 99.7