Income Taxes (Schedule Of Effective Income Tax Rate For Continuing Operations) (Details)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Income Taxes [Abstract]
Income tax expense at federal statutory rate	35.00%	35.00%
Valuation allowance for capital loss carry-forwards	3.30%	(0.10%)
State taxes, net of federal income tax benefit	1.40%	2.10%
Unremitted earnings from foreign operations	0.70%	1.90%
Valuation allowance for foreign operating loss carry-forwards	0.30%	0.90%
Non-deductible expenses	0.20%	3.30%
Changes in estimates related to prior year tax provision	0.10%	0.40%
Research and development tax credit		(0.90%)
Deduction for divestiture of subsidiary stock		(18.80%)
Domestic production activities deduction	(0.20%)
Income tax contingency accruals/reversals	(0.30%)	0.40%
Foreign rate differences	(3.20%)	(4.50%)
Foreign tax incentives	(9.20%)
Other	(0.10%)	0.20%
Effective income tax rate for income from continuing operations	28.00%	19.90%