Employee Benefit Plans Amounts Recognized in Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans
Current Pension Liability	$ 7.0	$ 5.9
Noncurrent Pension Liability	494.2	399.0
Noncurrent Pension Asset	0.0	0.0
Funded Status of Plan	501.2	404.9
Net Actuarial Gain (Loss) in Balance Sheet	(702.1)	(604.2)
Prior Service Credit in Balance Sheet	7.2	7.5
Pension Recognized in Balance Sheet, Gross of Deferred Tax	(694.9)	(596.7)
Pension Deferred Tax Asset in Balance Sheet	243.6	208.8
Pension Recognized in Balance Sheet, Net of Deferred Tax	(451.3)	(387.9)	$ (385.5)
Pension Benefits, Non U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans
Current Pension Liability	0.0	0.0
Noncurrent Pension Liability	0.0	0.0
Noncurrent Pension Asset	(5.4)	(27.7)
Funded Status of Plan	(5.4)	(27.7)
Net Actuarial Gain (Loss) in Balance Sheet	(44.0)	(28.1)
Prior Service Credit in Balance Sheet	0.0	0.0
Pension Recognized in Balance Sheet, Gross of Deferred Tax	(44.0)	(28.1)
Pension Deferred Tax Asset in Balance Sheet	10.9	8.9
Pension Recognized in Balance Sheet, Net of Deferred Tax	(33.1)	(19.2)	(25.0)
Other Postretirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans
Current Pension Liability	13.1	13.0
Noncurrent Pension Liability	124.0	136.2
Noncurrent Pension Asset	0.0	0.0
Funded Status of Plan	137.1	149.2
Net Actuarial Gain (Loss) in Balance Sheet	10.1	6.2
Prior Service Credit in Balance Sheet	3.9	0.4
Pension Recognized in Balance Sheet, Gross of Deferred Tax	14.0	6.6
Pension Deferred Tax Asset in Balance Sheet	5.3	7.9
Pension Recognized in Balance Sheet, Net of Deferred Tax	$ 19.3	$ 14.5	$ 9.0