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Valuation And Qualifying Accounts And Reserves
 12 Months Ended
Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Valuation And Qualifying Accounts And Reserves VALUATION AND QUALIFYING ACCOUNTS AND RESERVES
(Amounts in millions)
 
Column A
Column B
 
Column C
 
Column D
 
Column E
Description
Balance
at
Beginning
of Period
 
Additions
(Credited)
to Cost
and
Expenses
 
Deductions
 
Balance
at End of
Period
Year ended December 31, 2019
 
 
 
 
 
 
 
Allowance for doubtful receivables
$
20.2

 
$
2.8

 
$
(.5
)
1 
$
23.5

Excess and obsolete inventory reserve, LIFO basis
$
27.1

 
$
9.0

 
$
11.3

  
$
24.8

Tax valuation allowance
$
13.2

 
$
1.5

 
$
(2.1
)
 
$
16.8

 
 
 
 
 
 
 
 
Year ended December 31, 2018
 
 
 
 
 
 
 
Allowance for doubtful receivables
$
4.9

 
$
16.7

 
$
1.4

1 
$
20.2

Excess and obsolete inventory reserve, LIFO basis
$
26.4

 
$
10.3

 
$
9.6

  
$
27.1

Tax valuation allowance
$
24.2

 
$
(7.8
)
 
$
3.2

 
$
13.2

 
 
 
 
 
 
 
 
Year ended December 31, 2017
 
 
 
 
 
 
 
Allowance for doubtful receivables
$
7.4

 
$
.8

 
$
3.3

1 
$
4.9

Excess and obsolete inventory reserve, LIFO basis
$
27.1

 
$
4.9

 
$
5.6

  
$
26.4

Tax valuation allowance
$
22.9

 
$
1.3

 
$
—

 
$
24.2


1 
Uncollectible accounts charged off, net of recoveries.