Employee Benefit Plans (Principal Assumptions In Developing Net Periodic Pension Cost) (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate (as a percent)	3.50%	4.60%
Expected return on plan assets (as a percent)	6.30%	7.00%
Rate of compensation increase (as a percent)	3.80%	3.90%
Other Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate (as a percent)	3.80%	4.40%