Goodwill and Other Intangible Assets and Long-Lived Assets (Schedule Of Total Intangible Assets Primarily Acquired Through Business Combinations) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Gross Carrying Value	$ 170.8	$ 170.8
Accumulated Amortization	(137.1)	(126.0)
Intangible assets, net	33.7	44.8
Software [Member]
Gross Carrying Value	41.3	41.3
Accumulated Amortization	(26.5)	(21.8)
Intangible assets, net	14.8	19.5
Trademarks [Member]
Gross Carrying Value	10.0	10.0
Accumulated Amortization	(10.0)	(8.3)
Intangible assets, net	0	1.7
Customer Relationships And Other Intangibles [Member]
Gross Carrying Value	119.5	119.5
Accumulated Amortization	(100.6)	(95.9)
Intangible assets, net	$ 18.9	$ 23.6