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Valuation And Qualifying Accounts And Reserves
 12 Months Ended
Dec. 31, 2023
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
Additions
DescriptionBalance at
beginning of period		Charged to
cost and
expenses		DeductionsBalance at end of
period
Year ended December 31, 2023    
Allowance for doubtful receivables$39.0 $(6.5)$22.0 
1
$10.5 
Tax valuation allowance$15.7 $.8 $(1.2)$17.7 
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 
1Uncollectible accounts charged off, net of recoveries. The 2023 deduction includes $20.5 for a charge-off of a non-trade note receivable that was fully reserved in prior years.