Retirement Plans (Schedule Of Weighted Average Assumptions To Determine Pension Obligations) (Details)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
United States Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.20%	5.30%
Defined Benefit Pension Plans [Member] | United States Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.10%	5.20%
Salary progression rate	3.00%	4.00%
Defined Benefit Pension Plans [Member] | Foreign Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.40%	4.80%
Salary progression rate	2.90%	3.40%
Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.70%	4.50%	5.10%
Initial Medical Trend	9.00%	8.50%	8.50%
Ultimate Health Care Trend	5.00%	5.00%	5.00%
Medical cost trend rate decrease to ultimate rate in year	2018	2018	2018