Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net income	$ 71.0	$ 58.6	$ 132.1	$ 111.8
Other comprehensive income (loss)
Defined benefit plans, net of tax (a)	0.5	0.9	4.7	4.8
Foreign currency translation adjustments	0.8	3.0	15.8	(28.5)
Changes in cash flow hedges	(5.7)	(1.2)	(2.3)	(1.7)
Other comprehensive income (loss)	(4.4)	2.7	18.2	(25.4)
Comprehensive income	$ 66.6	$ 61.3	$ 150.3	$ 86.4