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Schedule II (Tables)
 12 Months Ended
Dec. 31, 2014
Valuation and Qualifying Accounts [Abstract]  
Schedule II Valuation and Qualifying Accounts [Table Text Block]
SCHEDULE II - Valuation and Qualifying Accounts

 
 
Additions
 
 
Description
Balance at Beginning of Period
Charged to Costs and Expenses
Deductions (A)
Balance at End of Period
(In millions)
Balance at December 31, 2012
 
 
 
 
Reserve for Uncollectible Accounts
$
3.8

$
3.3

$
4.5

$
2.6

Balance at December 31, 2013
 
 
 
 
Reserve for Uncollectible Accounts
$
2.6

$
2.5

$
3.2

$
1.9

Balance at December 31, 2014
 
 
 
 
Reserve for Uncollectible Accounts
$
1.9

$
2.3

$
2.6

$
1.6

(A)
Uncollectible accounts receivable written off, net of recoveries.