Income Taxes (Tables)

12 Months Ended

Dec. 31, 2024

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

The components of income from continuing operations before income taxes, including equity in unconsolidated affiliates, were (dollars in millions):

	Years Ended December 31,
	2024		2023		2022
Domestic	$	469	$	207	$	961
Foreign	91		45		198
Total	$	560	$	252	$	1,159

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The components of our income tax provision (benefit) from continuing operations were (dollars in millions):

	Years Ended December 31,
	2024		2023		2022
Current tax provision (benefit):
U.S. federal	$	97	$	17	$	180
State and local	18		(1)		51
Foreign	29		14		42
Net current tax provision	144		30		273
Deferred tax provision (benefit):
U.S. federal	(8)		22		(1)
State and local	(3)		1		(4)
Foreign	2		21		12
Net valuation allowance increase (decrease)	5		—		(6)
Net deferred tax provision (benefit)	(4)		44		1
Total income tax provision	$	140	$	74	$	274

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

The tax effects of significant temporary differences creating deferred tax assets and liabilities were (dollars in millions):

	December 31,
	2024		2023
Deferred tax assets:
Accrued liabilities	$	22	$	21
Research expenditures	26		19
Inventories	11		14
Benefit relating to capital loss, operating loss, and credit carryforwards	9		10
Operating lease liabilities	7		8
Deferred revenue	3		3
Other deferred tax assets	13		11
Total deferred tax assets	91		86
Valuation allowance	(10)		(4)
Total deferred tax asset after valuation allowance	81		82
Deferred tax liabilities:
Property, plant and equipment	(192)		(194)
Unremitted foreign earnings	(19)		(21)
Operating lease assets	(7)		(8)
Investment in Entekra	—		(7)
Other deferred tax liabilities	(4)		(4)
Total deferred tax liabilities	(222)		(234)
Net deferred tax liabilities	$	(141)	$	(152)
Balance sheet classification:
Long-term deferred tax asset	$	4	$	11
Long-term deferred tax liability	(145)		(162)
Net deferred tax liabilities	$	(141)	$	(152)

Summary of Tax Credit Carryforwards [Table Text Block]

The benefit relating to capital loss, operating loss, and credit carryforwards included in the above table at December 31, 2024, consisted of (dollars in millions):

	Operating Loss	Benefit Amount		Valuation Allowance		Expiration Beginning in
Canadian capital loss carryforwards	—	4		(4)		No expiration
Mexico operating loss carryforwards	2	1		(1)		2033
State credit carryforwards	—	4		(2)		2034
Total		$	9	$	(7)

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

Reconciliation of the U.S. federal statutory tax rate to the total effective tax rates from continuing operations (dollars in millions):

	Years Ended December 31,
	2024				2023				2022
	Amount ($)		Percent (%)		Amount ($)		Percent (%)		Amount ($)		Percent (%)
U.S. Federal tax rate	$	118	21	%	$	53	21	%	$	243	21	%
State and local income taxes	13		2		8		3		34		3
Effect of foreign tax rates	9		2		3		1		9		1
Uncertain tax positions	(2)		—		7		3		(2)		—
Unremitted foreign earnings	1		—		25		10		—		—
Non deductible compensation	3		1		6		2		6		—
Tax credits	(5)		(1)		(5)		(2)		(4)		—
Prior year changes in tax laws and positions	3		—		(9)		(3)		—		—
Revisions to prior year estimates	—		—		(7)		(3)		2		—
Other items, net	—		—		(7)		(3)		(14)		(1)
Provision for income taxes	$	140	25	%	$	74	29	%	$	274	24	%

Schedule of Unrecognized Tax Benefits Roll Forward

Tabular reconciliation of the total amount of unrecognized tax benefits at the beginning and end of the years (dollars in millions): 

	December 31,
	2024		2023		2022
Beginning balance	$	13	$	6	$	9
Increases:
Tax positions taken in current year	1		1		1
Tax positions taken in prior years	—		6		—
Decreases:
Settlements with taxing authorities in current year	(3)		—		—
Lapse of statute in current year	—		—		(4)
Ending balance	$	11	$	13	$	6