Goodwill And Other Intangible Assets (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2011	Dec. 31, 2010
Goodwill, net	$ 818.0		$ 818.0			$ 820.5
Reduction to goodwill			2.2
Intangible assets, net	56.7		56.7			69.1
Weighted average amortization period			5.8
Amortization	2.4	2.4	7.2	7.6	9.6
Software [Member]
Intangible assets, net	24.2		24.2
Intangible assets, useful life, minimum			5
Intangible assets, useful life, maximum			8
Weighted average depreciation period			4.3
Trademarks [Member]
Intangible assets, net	2.3		2.3
Trademarks, useful life			4
Customer Relationships And Other Intangibles [Member]
Intangible assets, net	$ 30.2		$ 30.2
Intangible assets, useful life, minimum			7
Intangible assets, useful life, maximum			12