Income Taxes (Tables)

3 Months Ended

Mar. 31, 2025

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 March 31, 2025 and December 31, 2024 are as follows:

(Dollars in millions)	March 31, 2025		December 31, 2024
Gross deferred tax assets	$	296	$	297
Less valuation allowance	25		25
Deferred tax assets	271		272
Deferred tax liabilities	159		159
Net deferred tax asset	$	112	$	113