ENVIRONMENTAL (Tables)

9 Months Ended

Sep. 30, 2020

Environmental Remediation Obligations [Abstract]

Environmental Provisions Charged (Credited) to Income [Table Text Block]

Environmental provisions charged (credited) to income, which are included in costs of goods sold, were as follows:

	Three Months Ended September 30,					Nine Months Ended September 30,
	2020		2019			2020		2019
	($ in millions)
Provisions charged (credited) to income	$	12.5	$	(0.8	)	$	17.9	$	23.0
Recoveries for costs incurred and expensed	—		—			—		(4.8		)
Environmental expense (income)	$	12.5	$	(0.8	)	$	17.9	$	18.2