Other, Net (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest income	$ 2.3	$ 0.8		$ 6.7	$ 5.4
Exchange gain (loss)	2.0	3.1		3.5	(6.2)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)				(21.7)	(24.2)
Other	(0.6)	4.0		(5.3)	6.1
Other, net	(7.6)	(6.3)		(23.8)	390.5
Proceeds from Sale of Equity Method Investments			$ 423.0	0.0	423.0
Equity Method Investment, Realized Gain (Loss) on Disposal	0.0	0.0	$ 398.0	0.0	(398.0)
HussmannBusinessEquityOwnership [Member]
Earnings (loss) from equity investments	$ 0.0	$ 0.0		$ 0.0	$ (0.8)