Income Taxes (Tables)

12 Months Ended

Dec. 31, 2024

Income Tax Disclosure [Abstract]

Schedule of Income (Loss) Before Income Taxes

The sources of income (loss) from continuing operations, before income taxes, classified between domestic entities and those entities domiciled outside of the U.S., are as follows:

	Year Ended December 31,
	2024		2023		2022
	(Dollars in millions)
Domestic entities	$	(65)	$	(94)	$	7
Entities outside the U.S.	408		441		489
	$	343	$	347	$	496

Schedule of Income Tax Expense (Benefit)

Tax expense (benefit) consists of:

	Year Ended December 31,
	2024		2023		2022
	(Dollars in millions)
Current:
Federal	$	(3)	$	12	$	9
State	1		—		1
Foreign	56		50		50
	$	54	$	62	$	60
Deferred:
Federal	$	(9)	$	(14)	$	9
State	(1)		1		—
Foreign	17		37		37
	$	7	$	24	$	46
	$	61	$	86	$	106

Schedule of Effective Income Tax Rate Reconciliation

The U.S. federal statutory income tax rate is reconciled to our effective income tax rate as follows:

	Year Ended December 31,
	2024		2023		2022
	(Dollars in millions)
U.S. federal statutory income tax rate	21.0	%	21.0	%	21.0	%
Taxes on non-U.S. earnings different from U.S. tax	(3.3)	%	(3.6)	%	(3.4)	%
Reserves for tax contingencies	(4.7)	%	0.2	%	(0.4)	%
Non-deductible and permanent items	—	%	—	%	0.7	%
Withholding and other taxes on foreign earnings	7.0	%	7.0	%	3.9	%
Tax law changes	0.1	%	(1.7)	%	0.1	%
Changes in valuation allowance	(4.9)	%	5.5	%	(0.6)	%
All other items	2.6	%	(3.6)	%	0.1	%
	17.8	%	24.8	%	21.4	%

Schedule of Deferred Tax Assets (Liabilities) and Effects of Temporary Differences

The tax effects of temporary differences and tax carryforwards which give rise to future income tax benefits and

payables are as follows:

	December 31,
	2024		2023
	(Dollars in millions)
Deferred tax assets:
Intangibles and fixed assets	$	112	$	139
Pension	—		4
Accruals and reserves	29		30
Net operating losses and other tax attribute carryforwards	34		35
Outside basis differences	29		13
Other	70		55
Total deferred tax assets	274		276
Valuation allowance	(29)		(52)
Net deferred tax assets	$	245	$	224
Deferred tax liabilities:
Outside basis differences	$	(18)	$	(9)
Other	(45)		(26)
Total deferred tax liabilities	(63)		(35)
Net deferred tax asset	$	182	$	189

Schedule of Net Operating Loss Carryforwards

As of December 31, 2024, the Company had foreign net operating loss carryforwards of approximately $67 million with the majority in the below jurisdictions:

Jurisdiction	Expiration Period	Net Operating Loss Carryforwards
		(Dollars in millions)
Brazil	Indefinite	$	42
Luxembourg	2038	14
China	2034	9
Other	Various	2
		$	67

Schedule of Unrecognized Tax Benefits Roll Forward

The following table summarizes the activity related to the Company’s uncertain tax positions (excluding interest and penalties and related tax attributes):

	December 31,
	2024			2023		2022
	(Dollars in millions)
Change in unrecognized tax benefits:
Balance at beginning of year	$	66		$	71	$	80
Gross increases related to current period tax positions	5			3		4
Gross increases related to prior periods tax positions	2			—		5
Gross decreases related to prior periods tax positions	—			—		—
Decrease related to resolutions of audits with tax authorities	(6)			—		—
Expiration of the statute of limitations for the assessment of taxes	(17)		—	(8)		(14)
Foreign currency translation	(2)			—		(4)
Balance at end of year	$	48		$	66	$	71