ENVIRONMENTAL (Tables)

12 Months Ended

Dec. 31, 2023

Environmental Remediation Obligations [Abstract]

Rollforward of environmental liabilities

Our liabilities for future environmental expenditures were as follows:

	December 31,
	2023		2022
Environmental Liabilities	($ in millions)
Beginning balance	$	146.6	$	147.3
Charges to income	30.1		24.2
Remedial and investigatory spending	(25.9)		(24.6)
Other	2.8		(0.3)
Ending balance	$	153.6	$	146.6

Environmental Provisions Charged to Income Table

Environmental provisions charged to income, which are included in cost of goods sold, were as follows:

	Years ended December 31,
	2023		2022		2021
Environmental Expense	($ in millions)
Provisions charged to income	$	30.1	$	24.2	$	16.2
Insurance recoveries(1)	(6.4)		(1.0)		(2.2)
Environmental expense	$	23.7	$	23.2	$	14.0