Employee Benefit And Retirement Plans Other Postretirement Benefit Plan (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year	8.70%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate	4.50%
Defined Benefit Plan, Year that Rate Reaches Ultimate Trend Rate	2024
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	$ 56.1	$ (120.5)
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive (Loss) Income, before Tax	(619.6)
Defined Benefit Plan, Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rates [Abstract]
Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components	0.3
Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components	(0.3)
Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation	5.8
Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation	(5.0)
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Defined Benefit Plan, Benefit Obligation, Beginning	88.1	111.8
Service cost-benefits earned during the period	0.3	1.0	$ 1.3
Interest cost on projected benefit obligation	3.4	4.8	5.3
Defined Benefit Plan, Actuarial (Gain) Loss	(18.3)	(17.7)
Defined Benefit Plan, Benefits Paid	(5.6)	(7.9)
Change in post retirement plan benefits	0.0	(3.9)
Defined Benefit Plan, Benefit Obligation, Ending	$ 67.9	$ 88.1	111.8
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	4.00%	4.00%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate	4.50%	4.50%
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]
Defined Benefit Plan, Funded Status of Plan	$ (67.9)	$ (88.1)
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities	(5.8)	(6.8)
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	(62.1)	(81.3)
Defined Benefit Plan, Amounts Recognized in Balance Sheet	(67.9)	(88.1)
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax	19.6	26.2
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	34.0	16.9
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive (Loss) Income, before Tax	53.6	43.1
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost-benefits earned during the period	0.3	1.0	1.3
Interest cost on projected benefit obligation	3.4	4.8	5.3
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(6.6)	(6.4)	(2.4)
Defined Benefit Plan, Amortization of (Gains) Losses	(1.2)	0.0	0.8
Net periodic pension cost	$ (4.1)	$ (0.6)	$ 5.0
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	4.00%	4.50%	3.50%
Health care cost trend rate	4.50%	4.50%	4.50%