Business And Summary Of Significant Accounting Policies (Useful Lives Of Depreciable Assets) (Details)	12 Months Ended
	Dec. 31, 2011
Buildings [Member]
Property, Plant and Equipment [Line Items]
Useful life of property, plant and equipment, maximum, in years	30
Leased Assets And Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Amortization period	Amortized over the lesser of the economic life of the asset or the term of the lease
Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Useful life of property, plant and equipment, minimum, in years	3
Useful life of property, plant and equipment, maximum, in years	10
Customer Leased Instruments [Member]
Property, Plant and Equipment [Line Items]
Useful life of property, plant and equipment, minimum, in years	5
Useful life of property, plant and equipment, maximum, in years	7