Pension And Postretirement Benefits (Schedule Of Information For Pension Plans With An Accumulated Benefit Obligation In Excess Of Plan Assets) (Details) - Pension Benefits [Member] - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 791.5	$ 910.3
Accumulated benefit obligation	785.0	896.4
Fair value of plan assets	$ 563.9	$ 638.8