Retirement Plan (Weighted Average Assumptions Used to Determine End of Period Benefit Obligations) (Details) (Defined Benefit Post-retirement Health Coverage [Member])	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Post-retirement Health Coverage [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Discount Rate	4.25%	3.45%
Defined Benefit Plan Current Health Care Cost Trend Rate	8.00%	8.10%
Ultimate health care trend rate	5.00%	5.00%
Year rate reaches ultimate trend rate	2045	2023