Pension And Other Postretirement Benefits (Schedule Of One-Percentage-Point Change In Assumed Health Care Cost Trend Rates) (Details) $ in Millions |
12 Months Ended |
|---|---|
|
Dec. 31, 2015
USD ($)
| |
| Defined Benefit Plan Disclosure [Line Items] | |
| Effect on service and interest components of net periodic cost, 1% point increase | $ 0.1 |
| Effect on service and interest components of net periodic cost, 1% point decrease | (0.1) |
| Effect on accumulated postretirement benefit obligation, 1% point increase | 2.5 |
| Effect on accumulated postretirement benefit obligation, 1% point decrease | $ (2.3) |