XML 63 R50.htm IDEA: XBRL DOCUMENT
v3.25.4

Derivative Financial Instruments (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2025
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of effect of derivatives in our consolidated statements of operations | The effect of derivatives on our consolidated statements of operations is shown in the table below.
| Gain (loss) recognized in income
|  |  | Year ended December 31,
| Location |  | 2025 |  | 2024 |  | 2023
|  |  | (in millions)
Natural gas derivatives |  |  |  |  |  |  |
Unrealized net (losses) gains | Cost of sales |  | $ | (5) |  |  | $ | 35 |  |  | $ | 39 |
Realized net losses | Cost of sales |  | (1) |  |  | (40) |  |  | (139) |
Net derivative losses |  |  | $ | (6) |  |  | $ | (5) |  |  | $ | (100) |
Schedule of fair values of derivatives in our consolidated balance sheet | The fair values of derivatives on our consolidated balance sheets are shown below. As of December 31, 2025 and 2024, none of our derivative instruments were designated as hedging instruments. See Note 9—Fair Value Measurements for additional information on derivative fair values.
| Asset Derivatives |  | Liability Derivatives
| Balance Sheet Location |  | December 31, |  | Balance Sheet Location |  | December 31,
|  | 2025 |  | 2024 |  |  | 2025 |  | 2024
|  |  | (in millions) |  |  |  | (in millions)
Natural gas derivatives | Other current assets |  | $ | — |  |  | $ | 4 |  |  | Other current liabilities |  | $ | (5) |  |  | $ | (3) |
Natural gas derivatives | Other assets |  | 1 |  |  | — |  |  | Other liabilities |  | — |  |  | — |
Schedule of amounts relevant to offsetting of derivative assets | The following table presents amounts relevant to offsetting of our derivative assets and liabilities as of December 31, 2025 and 2024:
| Amounts presented in consolidated balance sheets(1) |  | Gross amounts not offset in consolidated balance sheets |  |
|  | Financial instruments |  | Cash collateral received (pledged) |  | Net amount
| (in millions)
December 31, 2025 |  |  |  |  |  |  |
Total derivative assets | $ | 1 |  |  | $ | — |  |  | $ | — |  |  | $ | 1 |
Total derivative liabilities | (5) |  |  | — |  |  | — |  |  | (5) |
Net derivative liabilities | $ | (4) |  |  | $ | — |  |  | $ | — |  |  | $ | (4) |
December 31, 2024 |  |  |  |  |  |  |
Total derivative assets | $ | 4 |  |  | $ | — |  |  | $ | — |  |  | $ | 4 |
Total derivative liabilities | (3) |  |  | — |  |  | — |  |  | (3) |
Net derivative assets | $ | 1 |  |  | $ | — |  |  | $ | — |  |  | $ | 1 |
_______________________________________________________________________________ (1)We report the fair values of our derivative assets and liabilities on a gross basis on our consolidated balance sheets. As a result, the gross amounts recognized and net amounts presented are the same.
Schedule of amounts relevant to offsetting of derivative liabilities | The following table presents amounts relevant to offsetting of our derivative assets and liabilities as of December 31, 2025 and 2024:
| Amounts presented in consolidated balance sheets(1) |  | Gross amounts not offset in consolidated balance sheets |  |
|  | Financial instruments |  | Cash collateral received (pledged) |  | Net amount
| (in millions)
December 31, 2025 |  |  |  |  |  |  |
Total derivative assets | $ | 1 |  |  | $ | — |  |  | $ | — |  |  | $ | 1 |
Total derivative liabilities | (5) |  |  | — |  |  | — |  |  | (5) |
Net derivative liabilities | $ | (4) |  |  | $ | — |  |  | $ | — |  |  | $ | (4) |
December 31, 2024 |  |  |  |  |  |  |
Total derivative assets | $ | 4 |  |  | $ | — |  |  | $ | — |  |  | $ | 4 |
Total derivative liabilities | (3) |  |  | — |  |  | — |  |  | (3) |
Net derivative assets | $ | 1 |  |  | $ | — |  |  | $ | — |  |  | $ | 1 |
_______________________________________________________________________________ (1)We report the fair values of our derivative assets and liabilities on a gross basis on our consolidated balance sheets. As a result, the gross amounts recognized and net amounts presented are the same.

X
- References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of derivative and other financial assets that are subject to offsetting, including master netting arrangements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-7A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-10 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-22 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-21 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-20 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483466/210-20-50-3 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483466/210-20-50-4 + Details
Name: | us-gaap_OffsettingAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of derivative and other financial liabilities that are subject to offsetting, including master netting arrangements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-7A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-10 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-22 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-21 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-20 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483466/210-20-50-3 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483466/210-20-50-4 + Details
Name: | us-gaap_OffsettingLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4CC -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4C -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 182 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-182 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4B + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration