Employee Benefit Plans (Schedule Of Assumptions Used To Develop The Actuarial Present Value Of The Benefit Obligations) (Details)	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]
Discount rate	4.11%	3.83%	4.70%
Salary scale increases	3.50%	3.50%	3.50%

Expected rate of compensation increases (for pay-related plans).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(2)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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