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Valuation And Qualifying Accounts And Reserves
 12 Months Ended
Dec. 31, 2022
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 AColumn BColumn CColumn DColumn E
DescriptionBalance
at
Beginning
of Period		Additions
(Credited)
to Cost
and
Expenses		DeductionsBalance
at End of
Period
Year ended December 31, 2022    
Allowance for doubtful receivables$37.0 $3.2 $1.2 
1
$39.0 
Tax valuation allowance$16.2 $(.4)$.1 $15.7 
Year ended December 31, 2021    
Allowance for doubtful receivables$42.0 $(3.4)$1.6 
1
$37.0 
Tax valuation allowance$18.1 $(.1)$1.8 $16.2 
Year ended December 31, 2020 
Allowance for doubtful receivables$26.8 

$17.1 $1.9 
1
$42.0 
Tax valuation allowance$16.8 $2.5 $1.2 $18.1 
1Uncollectible accounts charged off, net of recoveries.