Amounts Recognized In Statement Of Financial Position (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Pension Costs
Defined Benefit Plan Disclosure [Line Items]
Pension and Postretirement Benefits	$ (3.4)	$ (3.4)
Other Assets	4.0	3.0
Accumulated Other Comprehensive Loss (Income)	19.9	18.6
Net amount recognized at end of year	20.5	18.2
Accumulated benefit obligation	100.0	95.4
Nonpension Postretirement Costs
Defined Benefit Plan Disclosure [Line Items]
Pension and Postretirement Benefits	(24.5)	(21.8)
Other Assets	0	0
Accumulated Other Comprehensive Loss (Income)	2.7	(1.5)
Net amount recognized at end of year	(21.8)	(23.3)
Accumulated benefit obligation	$ 0	$ 0