Income Taxes (Schedule Of Effective Income Tax Rate For Continuing Operations) (Details)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income tax expense at federal statutory rate	35.00%	35.00%
State taxes, net of federal income tax benefit	0.60%	1.20%
Income tax contingency accruals and tax settlements	0.90%	0.80%
Unremitted earnings from foreign operations	(0.90%)	1.00%
Changes in estimates related to prior year tax provision	(0.20%)	(0.20%)
Effective Income Tax Rate Reconciliation Deduction For Foreign Investment Adjustments	(0.30%)
Non-deductible expenses	1.00%	0.70%
Valuation allowance for foreign operating loss carry-forwards	0.10%	(0.40%)
Research and development tax credit	(0.90%)	0.00%
Foreign rate differences	(0.90%)	(1.40%)
Valuation allowance for capital loss carry-forwards	(1.10%)	(1.60%)
Domestic production activities deduction	(2.70%)	(2.50%)
Effective income tax rate for income from continuing operations	30.60%	32.60%