Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net Income	$ 42.0	$ 77.8	$ 79.0	$ 135.3
Other Comprehensive (Loss) Income, Net of Tax:
Derivative Instruments	(2.0)	5.0	(3.9)	3.0
Pension and Postretirement Benefit Plans	0.8	(23.3)	1.5	(20.7)
Currency Translation Adjustment	17.2	(25.5)	36.1	(19.5)
Total Other Comprehensive Income (Loss), Net of Tax	16.0	(43.8)	33.7	(37.2)
Total Comprehensive Income	$ 58.0	$ 34.0	$ 112.7	$ 98.1