Income Taxes (Schedule Of Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Abstract]
U.S. federal statutory rate	35.00%	35.00%	35.00%
State income tax, net of federal tax benefit	1.60%	1.50%	1.50%
International income taxes	(5.30%)	(7.00%)	(4.60%)
Domestic manufacturing exclusions	(1.50%)	(1.20%)	(1.40%)
Research and development credit	(1.20%)	(1.30%)	(2.30%)
Other, net	1.10%	(0.80%)	0.50%
Effective tax rate	29.70%	26.20%	28.70%