Income Taxes (Tables)

6 Months Ended

Jun. 30, 2024

Income Tax Disclosure [Abstract]

Schedule of Income Tax Provision and Effective Tax Rate

	Second Quarter				Six Months
(Dollars in millions)	2024		2023		2024		2023
Provision (benefit) for income taxes (a)	$	51.4	$	49.4	$	97.8	$	94.3
Income (loss) before income taxes	$	231.7	$	234.9	$	457.2	$	458.6
Effective tax rate	22.2%		21.0%		21.4%		20.6%
(a) The second quarter of 2024 includes net discrete income tax benefits of $0.7 million and the first six months of 2024 includes net discrete income tax benefits of $5.1 million, respectively. The second quarter of 2023 includes net discrete income tax benefits of $1.4 million and the first six months of 2023 includes net discrete income tax benefits of $8.0 million, respectively.