Employee Benefit Plans Change in Projected Benefit Obligation Amount (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension Benefits, U.S. Plans
Defined Benefit Plan, Change in Benefit Obligation
Benefit Obligation at Beginning of Year	$ 1,808.2	$ 1,892.6
Service Cost	7.0	3.8	$ 3.7
Interest Cost	85.2	82.2	89.9
Contributions by Plan Participants	0.0	0.0
Defined Benefit Plan, Actuarial Gain (Loss)	123.6	(103.6)
Net Benefit Expenses Paid	(68.7)	(59.3)
Plan Amendments	0.0	(7.5)
Change in Foreign Exchange Rates	0.0	0.0
Benefit Obligation at End of Year	1,955.3	1,808.2	1,892.6
Accumulated Benefit Obligation	1,955.3	1,808.2
Defined Benefit Plan, Change in Fair Value of Plan Assets
Fair Value of Plan Assets at Beginning of Year	1,403.3	1,473.7
Defined Benefit Plan, Actual Return on Plan Assets	112.3	(17.5)
Employer Contributions to Defined Benefit Plan	7.2	6.4
Contributions by Plan Participants	0.0	0.0
Net Benefit Expenses Paid	(68.7)	(59.3)
Effect of Foreign Exchange Rates on Plan Assets	0.0	0.0
Fair Value of Plan Assets at End of Year	1,454.1	1,403.3	1,473.7
Funded Status of Plan	501.2	404.9
Pension Benefits, Non U.S. Plans
Defined Benefit Plan, Change in Benefit Obligation
Benefit Obligation at Beginning of Year	203.8	226.9
Service Cost	0.0	0.0	2.3
Interest Cost	7.0	7.9	9.1
Contributions by Plan Participants	0.0	0.0
Defined Benefit Plan, Actuarial Gain (Loss)	55.0	(14.7)
Net Benefit Expenses Paid	(4.5)	(4.6)
Plan Amendments	0.0	0.0
Change in Foreign Exchange Rates	(38.3)	(11.7)
Benefit Obligation at End of Year	223.0	203.8	226.9
Accumulated Benefit Obligation	213.4	194.8
Defined Benefit Plan, Change in Fair Value of Plan Assets
Fair Value of Plan Assets at Beginning of Year	231.5	246.3
Defined Benefit Plan, Actual Return on Plan Assets	42.5	2.9
Employer Contributions to Defined Benefit Plan	0.0	0.0
Contributions by Plan Participants	0.0	0.0
Net Benefit Expenses Paid	(4.5)	(4.6)
Effect of Foreign Exchange Rates on Plan Assets	(41.1)	(13.1)
Fair Value of Plan Assets at End of Year	228.4	231.5	246.3
Funded Status of Plan	(5.4)	(27.7)
Other Postretirement Benefit Plans
Defined Benefit Plan, Change in Benefit Obligation
Benefit Obligation at Beginning of Year	160.4	173.9
Service Cost	0.0	0.0	0.3
Interest Cost	7.2	7.2	7.9
Contributions by Plan Participants	4.0	4.6
Defined Benefit Plan, Actuarial Gain (Loss)	(4.4)	(9.1)
Net Benefit Expenses Paid	(15.6)	(16.2)
Plan Amendments	(3.7)	0.0
Change in Foreign Exchange Rates	0.0	0.0
Benefit Obligation at End of Year	147.9	160.4	173.9
Defined Benefit Plan, Change in Fair Value of Plan Assets
Fair Value of Plan Assets at Beginning of Year	11.2	11.3
Defined Benefit Plan, Actual Return on Plan Assets	0.1	0.3
Employer Contributions to Defined Benefit Plan	11.1	11.2
Contributions by Plan Participants	4.0	4.6
Net Benefit Expenses Paid	(15.6)	(16.2)
Effect of Foreign Exchange Rates on Plan Assets	0.0	0.0
Fair Value of Plan Assets at End of Year	10.8	11.2	$ 11.3
Funded Status of Plan	$ 137.1	$ 149.2