CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net income before allocation to noncontrolling interests	$ 80.7	$ 69.3	$ 149.4	$ 132.6
Currency translation adjustment	(46.9)	36.4	(21.5)	58.6
Changes in pension and postretirement plan assets and benefit obligation, net of tax benefit	4.5	2.3	14.1	4.6
Other comprehensive income (loss)	(42.4)	38.7	(7.4)	63.2
Comprehensive income before allocation to noncontrolling interests	38.3	108.0	142.0	195.8
Less: Noncontrolling interests in comprehensive income (loss)	(0.2)	0.3	(0.2)	0.7
Comprehensive income attributable to common shareholders	$ 38.5	$ 107.7	$ 142.2	$ 195.1