Intangible Assets And Goodwill (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Apr. 30, 2012
Finite-Lived Intangible Assets [Line Items]
Net book value of intangible assets sold under plan for sale and partial leaseback					$ 14.4
Contributed intangible assets	336.3
Net book value of intangible assets sold	9.4
Amortization of purchased intangibles	26.2	33.0	90.3	99.2
Pivot [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 17.0		$ 17.0