Income Taxes (Tables)

6 Months Ended

Jun. 30, 2023

Income Tax Disclosure [Abstract]

Schedule of Deferred Tax Assets and Liabilities

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at June 30, 2023 and December 31, 2022 is as follows:

(Dollars in millions)	June 30, 2023		December 31, 2022
Deferred tax assets	$	202	$	208
Less valuation allowance	19		17
Deferred tax assets	183		191
Deferred tax liabilities	123		125
Net deferred tax asset	$	60	$	66