Employee Benefit Plans (Assumptions Used In Determining The Benefit Obligations And Net Periodic Benefit Expense Income) (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]
Benefit obligations, Discount rate at the end of the period	4.00%	4.55%	5.50%
Net periodic benefit cost, Discount rate at the beginning of the period	4.55%	5.50%	5.25%
Net periodic benefit cost, Expected return on plan assets	7.50%	8.00%	8.00%