Other, Net (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Jun. 30, 2016	Mar. 31, 2016
Interest income	$ 3.1		$ 2.0
Exchange gain (loss)	(1.9)		(5.5)
Defined Benefit Plan, Net Periodic Benefit Cost	(8.2)		(8.1)
Other	(1.5)		3.3
Other, net	(4.7)		$ 1.9
Proceeds from Sale of Equity Method Investments		$ 423.0
Equity Method Investment, Realized Gain (Loss) on Disposal	$ 0.0	$ 398.0