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MISCELLANEOUS INCOME (Tables)
9 Months Ended
Sep. 30, 2014
Other Income and Expenses [Abstract]  
Schedule of Other Nonoperating Income (Expense)
Total miscellaneous income was as follows:
 
 
Three Months Ended September 30
 
Nine Months Ended September 30
(Millions)
 
2014
 
2013
 
2014
 
2013
Equity portion of AFUDC
 
$
2.2

 
$
2.9

 
$
8.5

 
$
6.6

Earnings from equity method investments
 
2.9

 
2.8

 
8.5

 
8.6

Key executive life insurance for retired employees
 
0.1

 
0.1

 
1.5

 
1.0

Other
 
0.4

 
0.2

 
1.0

 
0.7

Total miscellaneous income
 
$
5.6

 
$
6.0

 
$
19.5

 
$
16.9