Accounting Policies (Narrative) (Details)	12 Months Ended
	Dec. 31, 2011
Minimum ownership percentage to exercise significant influence	20.00%
Trademarks [Member]
Intangible assets, estimated useful life, minimum	2
Intangible assets, estimated useful life, maximum	20
Patents and Developed Technologies [Member]
Intangible assets, estimated useful life, minimum	5
Intangible assets, estimated useful life, maximum	17
Other Intangible Assets [Member]
Intangible assets, estimated useful life, minimum	5
Intangible assets, estimated useful life, maximum	16
Building [Member]
Estimated useful life, maximum	40
Machinery and Equipment [Member]
Estimated useful life, minimum	16
Estimated useful life, maximum	20