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Schedule II - Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2016
Schedule of Valuation and Qualifying Accounts Disclosure [Abstract]  
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
VALUATION AND QUALIFYING ACCOUNTS
 
 
 
 
Additions
 
 
 
 
(dollars in millions)
 
Beginning of Period
 
Charge (Benefit) to Expenses
 
(To) From Other Accounts
 
Deductions
 
End of Period
Allowance for Doubtful Accounts
 
 
 
 
 
 
 
 
 
 
Year 2016
 
$
12.4

 
$
9.4

 
$
(2.0
)
 
$
9.9

 
$
9.9

Year 2015
 
$
12.4

 
$
8.5

 
$
—

 
$
8.5

 
$
12.4

Year 2014
 
$
12.2

 
$
10.4

 
$
—

 
$
10.2

 
$
12.4

 
 
 
 
 
 
 
 
 
 
 
Deferred Tax Valuation Allowance
 
 
 
 
 
 
 
 
 
 
Year 2016
 
$
58.4

 
$
(3.6
)
 
$
(0.4
)
 
$
—

 
$
54.4

Year 2015
 
$
64.4

 
$
(5.5
)
 
$
(0.5
)
 
$
—

 
$
58.4

Year 2014
 
$
68.3

 
$
(1.1
)
 
$
(2.8
)
 
$
—

 
$
64.4