Income Taxes (Schedule Of Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Abstract]
U.S. federal statutory rate	35.00%	35.00%	35.00%
State income tax, net of federal tax benefit	1.50%	1.60%	1.40%
International income taxes	(3.80%)	(3.60%)	(3.60%)
Domestic manufacturing exclusions	(1.50%)	(1.40%)	(1.60%)
Research and development credit		(0.80%)	(1.20%)
Other, net	0.40%	0.20%	0.10%
Effective tax rate	31.60%	31.00%	30.10%