Goodwill And Other Acquired Intangible Assets (Acquired Intangible Assets And Related Amortization) (Details) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	$ 153.0	$ 168.8
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	142.7	145.1
Accumulated amortization	(55.6)	(49.2)
Intangible assets, net	87.1	95.9
Trade Secrets [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	31.2	31.4
Accumulated amortization	(12.8)	(10.9)
Intangible assets, net	18.4	20.5
Software [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	54.8	54.8
Accumulated amortization	(23.9)	(20.3)
Intangible assets, net	30.9	34.5
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	37.8	37.5
Accumulated amortization	(21.2)	(19.6)
Intangible assets, net	$ 16.6	$ 17.9