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Employee Benefit Plans (Target Allocation, Percentage Of Plan Assets And Weighted Average Expected Rate Of Return) (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014
Cash And Cash Equivalents [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target Allocation, Minimum | 0.00% |
Target Allocation, Maximum | 20.00% |
Percentage of Plan Assets | 5.20% | 8.70%
Weighted Average Expected Long-term Rate of Return | 0.16% |
Equity Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target Allocation, Minimum | 40.00% |
Target Allocation, Maximum | 60.00% |
Percentage of Plan Assets | 47.20% | 48.20%
Weighted Average Expected Long-term Rate of Return | 3.97% |
Fixed Income Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target Allocation, Minimum | 40.00% |
Target Allocation, Maximum | 60.00% |
Percentage of Plan Assets | 43.90% | 43.10%
Weighted Average Expected Long-term Rate of Return | 2.01% |
Other Financial Instruments [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target Allocation, Minimum | 0.00% |
Target Allocation, Maximum | 5.00% |
Percentage of Plan Assets | 3.70% |
Weighted Average Expected Long-term Rate of Return | 0.28% |

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