Income Taxes (Tables)

6 Months Ended

Jun. 30, 2023

Income Tax Disclosure [Abstract]

Income Tax Expense From Continuing Operations And The Effective Tax Rate

The following table presents Income tax expense and the effective tax rate:

	Three Months Ended June 30,						Six Months Ended June 30,
	2023			2022			2023			2022
	(Dollars in millions)
Income tax expense	$	56.8		$	51.4		$	111.9		$	100.2
Effective tax rate	23		%	24		%	23		%	24		%