Employee Benefit Plans (Schedule Of Projected And Accumulated Benefit Obligations In Excess Of Plan Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 527.4	$ 566.3
Accumulated benefit obligation	525.7	562.8
Fair value of plan assets	456.0	473.5
Health Care Benefits
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	11.8	16.6
Accumulated benefit obligation	11.8	16.6
Fair value of plan assets	$ 0.0	$ 0.0