Income Taxes (Schedule Of Reconciliations Between Statutory Federal Income Tax Rate And Effective Income Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Abstract]
Federal statutory rate	35.00%	35.00%	35.00%
Tax Effect of International Items	(14.04%)	(8.94%)	(3.76%)
State taxes, net of federal benefit	1.15%	(0.46%)	(2.71%)
Uncertain tax contingencies	(2.59%)	(3.23%)	(4.21%)
Other, net	(1.36%)	(5.62%)	(1.71%)
Effective income tax rate, total	18.16%	16.72%	22.61%