ALLOWANCE FOR DOUBTFUL ACCOUNTS RECEIVABLES (Tables)

3 Months Ended

Mar. 31, 2018

Accounts Receivable, Net [Abstract]

Allowance for Doubtful Accounts Receivable

Allowance for doubtful accounts receivable consisted of the following:

	March 31,
	2018		2017
	($ in millions)
Balance at beginning of year	$	12.3	$	10.1
Provisions charged	1.1		1.4
Balance at end of period	$	13.4	$	11.5