Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net earnings	$ 108.1	$ 100.1	$ 218.2	$ 226.7
Gross
Recognition of pension items	1.7	1.5	3.4	2.8
Unrealized (losses) gains on derivative instruments for net investment hedge	(7.2)	(7.7)	16.1	(1.7)
Unrealized gains (losses) on derivative instruments for cash flow hedge	1.7	(3.0)	4.3	3.1
Foreign currency translation adjustments	27.2	29.3	2.0	(84.9)
Other comprehensive income (loss)	23.4	20.1	25.8	(80.7)
Taxes
Recognition of pension items	0.0	(0.4)	(1.9)	(0.7)
Unrealized (losses) gains on derivative instruments for net investment hedge	1.8	1.9	(4.0)	0.4
Unrealized gains (losses) on derivative instruments for cash flow hedge	(0.4)	0.8	(1.2)	(0.8)
Foreign currency translation adjustments	0.0	2.9	0.0	(2.2)
Other comprehensive income (loss)	1.4	5.2	(7.1)	(3.3)
Net
Recognition of pension items	1.7	1.1	1.5	2.1
Unrealized (losses) gains on derivative instruments for net investment hedge	(5.4)	(5.8)	12.1	(1.3)
Unrealized gains (losses) on derivative instruments for cash flow hedge	1.3	(2.2)	3.1	2.3
Foreign currency translation adjustments	27.2	32.2	2.0	(87.1)
Other comprehensive income (loss)	24.8	25.3	18.7	(84.0)
Comprehensive income, net of taxes	$ 132.9	$ 125.4	$ 236.9	$ 142.7