Segment Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Segment Reporting [Line Items]
Net sales	$ 827	$ 699	$ 2,455	$ 2,168
Cost of goods sold	750	647	2,279	1,938
Gross profit	77	52	176	230
Reportable Segment
Segment Reporting [Line Items]
Net sales	827	699	2,455	2,168
Gross profit	77	52	176	230
Reportable Segment \| Idle facility and lower of cost or net realizable value charges
Segment Reporting [Line Items]
Cost of goods sold	53	47	153	97
Reportable Segment \| Other cost of goods
Segment Reporting [Line Items]
Cost of goods sold	$ 697	$ 600	$ 2,126	$ 1,841

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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