Other Expense (Income) (Tables)

12 Months Ended

Dec. 31, 2023

Other Income and Expenses [Abstract]

Schedule of Other Expense (Income)

Other expense (income) consisted of:

($ in millions)	2023		2022		2021
Restructuring and related charges:
Severance and benefits	$	(2.8)	$	8.7	$	0.6
Asset-related charges	—		15.3		—
Other charges	—		(0.2)		1.6
Total restructuring and related charges	$	(2.8)	$	23.8	$	2.2
Loss on disposal of plant	11.6		—		—
Asset impairments	9.6		6.2		5.6
Foreign exchange transaction losses (gains)	9.4		(4.1)		(1.4)
Contingent consideration	2.3		3.0		1.5
Loss (gain) on oil hedges	1.3		(1.5)		(1.7)
Other items	—		(0.6)		1.7
Total other expense (income)	$	31.4	$	26.8	$	7.9

Schedule of Restructuring Obligations

The following table presents activity related to our restructuring obligations related to our 2022 restructuring plan:

($ in millions)	Severance and benefits		Other charges		Total
Balance, December 31, 2022	$	10.1	$	15.3	$	25.4
(Credits) charges	(2.6)		—		(2.6)
Cash payments	(4.5)		—		(4.5)
Non-cash asset write downs	—		(15.3)		(15.3)
Balance, December 31, 2023	$	3.0	$	—	$	3.0