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Other Income (Expense)
3 Months Ended
Mar. 31, 2012
Other Income (Expense) [Abstract]  
Other Income (Expense) [Text Block]
OTHER INCOME (EXPENSE)

 
 
Quarter Ended
 
 
March 31,
 
 
2012
 
2011
Millions
 
 
 
 
AFUDC – Equity
 
$0.8
 
$0.6
Investment and Other Income (Expense)
 
(0.1
)
 
0.2

Total Other Income
 
$0.7
 
$0.8