Short-Term Borrowings (Schedule Of Short-Term Borrowings) (Details) - USD ($) $ in Millions |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Short-term Debt [Line Items] | ||
| Short-term Debt, Weighted Average Interest Rate | 1.21% | |
| Credit Facilities [Member] | ||
| Short-term Debt [Line Items] | ||
| Short-term Debt, Weighted Average Interest Rate | 1.28% | 0.00% |
| Revolving Credit Facility | ||
| Short-term Debt [Line Items] | ||
| Credit facilities borrowings | $ 15.0 | $ 0.0 |