Other, Net
 3 Months Ended
Mar. 31, 2015
Other Income and Expenses [Abstract]  
Other, Net
Other, Net
 
Three Months Ended March 31,
(in millions)
2015
2014
 
 
Predecessor
AFUDC Equity
$
3.5

$
1.6

Miscellaneous
0.8

0.2

Total Other, net
$
4.3

$
1.8