Employee Benefit Plans (Schedule Of Components Of Pension Cost) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Pension Plan, Defined Benefit [Member]
Interest cost on projected benefit obligation	$ 2.7	$ 2.8
Service cost	1.4	1.8
Expected return on plan assets	(2.3)	(2.6)
Amortization and deferrals - net	2.1	3.5
Pension cost	3.9	5.5
Unfunded Executive Pension Plans [Member]
Interest cost on projected benefit obligation	0.1	0.1
Amortization and deferrals - net	0	0.1
Pension cost	$ 0.1	$ 0.2