Other, Net (Schedule Of Other Net) (Details) - USD ($) $ in Millions |
12 Months Ended | |||||
|---|---|---|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
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| Schedule Of Other, Net [Line Items] | ||||||
| AFUDC Equity | $ 28.3 | |||||
| Miscellaneous | [1] | 3.7 | ||||
| Total Other, net | $ 32.0 | |||||
| Predecessor | ||||||
| Schedule Of Other, Net [Line Items] | ||||||
| AFUDC Equity | $ 11.0 | $ 6.8 | ||||
| Miscellaneous | [1] | (2.2) | 10.8 | |||
| Total Other, net | $ 8.8 | $ 17.6 | ||||
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