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Schedule II Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation And Qualifying Accounts
SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS
For the years ended December 31, 2018, 2017 and 2016
In millions
 
Column A
Column B
 
Column C
 
Column D
 
Column E
 
 
 
Additions
 
 
 
 
Description
Balance
Beginning
of Period
 
Charges or
(Reductions)
to Costs and
Expenses
 
Charges or
(Reductions)
to Other
        Accounts(b)
 
Deductions
 
Balance at
End of Period(a)
Allowance for doubtful accounts, deducted from accounts receivable in the balance sheet:
 
 
 
 
 
 
 
 
 
Year ended December 31, 2016
10.4

 
(1.4
)
 
1.7

 
(0.4
)
 
10.3

Year ended December 31, 2017
10.3

 
5.6

 
(0.2
)
 
(0.2
)
 
15.5

Year ended December 31, 2018
15.5

 
—

 
12.0

(c)
(4.1
)
 
23.4

Income tax valuation allowance, related to deferred income taxes
 
 
 
 
 
 
 
 
 
Year ended December 31, 2016
11.9

 
18.7

 
—

 
—

 
30.6

Year ended December 31, 2017
30.6

 
553.5

 
—

 
—

 
584.1

Year ended December 31, 2018
584.1

 
946.2

 
—

 
—

 
1,530.3

______________________________
(a)
Allowance for doubtful accounts balance includes $22.1 million, $13.2 million, $7.6 million of allowance on long-term receivables recorded in other long term assets for the years ended December 31, 2018, 2017 and 2016, respectively.
(b)
The income tax valuation allowance adjustment was recorded to accumulated other comprehensive income and deferred taxes.
(c)
Amount relates to allowance of $12.0 million acquired in the Acquisition.