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ALLOWANCE FOR DOUBTFUL ACCOUNTS RECEIVABLES (Tables)
 12 Months Ended
Dec. 31, 2019
Accounts Receivable, after Allowance for Credit Loss [Abstract]  
Allowance for Doubtful Accounts Receivable
Allowance for doubtful accounts receivable consisted of the following:
 
December 31,
 
2019
 
2018
 
($ in millions)
Beginning balance
$
12.9

 
$
12.3

Provisions charged
1.1

 
1.7

Write-offs, net of recoveries
(2.1
)
 
(0.7
)
Foreign currency translation adjustments
—

 
(0.4
)
Ending balance
$
11.9

 
$
12.9