ACCRUED LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2017

Accrued Liabilities, Current [Abstract]

Accrued Liabilities

Included in accrued liabilities were the following:

	December 31,
	2017		2016
	($ in millions)
Accrued compensation and payroll taxes	$	82.5	$	77.8
Tax-related accruals	34.4		40.9
Accrued interest	37.4		30.7
Legal and professional costs	31.8		21.2
Accrued employee benefits	21.7		21.2
Environmental (current portion only)	20.0		17.0
Asset retirement obligation (current portion only)	10.5		12.6
Other	36.1		42.4
Accrued liabilities	$	274.4	$	263.8