Employee Benefit Plans And Other Postretirement Benefits (Schedule Of Pension Plans With PBO And ABO In Excess Of Fair value Of Plan Assets) (Details) - Pension Plan Assets [Member] - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
PBO	$ 1,964.0	$ 2,023.4
Fair value of plan assets	$ 1,842.0	$ 1,992.6