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Other Income (Expense)
6 Months Ended
Jun. 30, 2014
Other Income (Expense) [Abstract]  
Other Income (Expense) [Text Block]
OTHER INCOME (EXPENSE)

 
 
Quarter Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2014
 
2013
 
2014
 
2013
Millions
 
 
 
 
 
 
 
 
AFUDC – Equity
 

$2.0

 

$1.0

 

$3.8

 

$2.1

Gain on Sale of Available-for-sale Securities
 
0.2

 

 
0.2

 
0.8

Investments and Other Income (Expense)
 
(0.3
)
 
0.5

 
(0.1
)
 
1.3

Total Other Income
 

$1.9

 

$1.5

 

$3.9

 

$4.2