Pension And Other Postretirement Benefits (Schedule Of Key Assumptions That Were Used To Calculate The Net Periodic Benefits Cost) (Details) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Pension Plan | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount Rate | 3.84% | ||
| Expected Long-Term Rate of Return on Plan Assets | 8.20% | ||
| Rate of Compensation Increases | 4.00% | ||
| Other Postretirement Benefits | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount Rate | 4.09% | ||
| Expected Long-Term Rate of Return on Plan Assets | 8.06% | ||
| Predecessor | Pension Plan | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount Rate | 4.34% | 3.36% | |
| Expected Long-Term Rate of Return on Plan Assets | 8.30% | 8.30% | |
| Rate of Compensation Increases | 4.00% | 4.00% | |
| Predecessor | Other Postretirement Benefits | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount Rate | 4.74% | 3.92% | |
| Expected Long-Term Rate of Return on Plan Assets | 8.14% | 8.15% | |