Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net Income	$ 47.3	$ 57.8	$ 126.3	$ 193.1
Other Comprehensive (Loss) Income, Net of Tax:
Derivative Instruments	(0.6)	2.1	(4.5)	5.1
Pension and Postretirement Benefit Plans	0.7	5.2	2.2	(15.5)
Currency Translation Adjustment	10.8	(6.8)	46.9	(26.3)
Total Other Comprehensive Income (Loss), Net of Tax	10.9	0.5	44.6	(36.7)
Total Comprehensive Income	$ 58.2	$ 58.3	$ 170.9	$ 156.4