Long-Term Debt To Affiliated Trusts (Schedule Of Distribution Rates Paid) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 1998
Long-Term Debt To Affiliated Trusts [Abstract]
Low distribution rate	1.11%	1.19%	1.13%
High distribution rate	1.19%	1.40%	1.40%
Distribution rate at the end of the year	1.11%	1.19%	1.40%	8.45%