Employee Benefit Plans (Schedule Of Investment Asset Allocation To Benchmarking) (Details)	12 Months Ended
	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Portfolio, Actual asset allocation	100.00%
Benchmark, Target asset allocation	100.00%
Cash and Short-Term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Portfolio, Actual asset allocation	6.00%
Benchmark, Target asset allocation	10.00%
U.S. Stocks [Member]
Defined Benefit Plan Disclosure [Line Items]
Portfolio, Actual asset allocation	58.00%
Benchmark, Target asset allocation	59.00%
International Stocks [Member]
Defined Benefit Plan Disclosure [Line Items]
Portfolio, Actual asset allocation	15.00%
Benchmark, Target asset allocation	11.00%
U.S. Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Portfolio, Actual asset allocation	18.00%
Benchmark, Target asset allocation	17.00%
International Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Portfolio, Actual asset allocation	3.00%
Benchmark, Target asset allocation	2.00%
Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Portfolio, Actual asset allocation	0.00%
Benchmark, Target asset allocation	1.00%