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Supplemental Balance Sheet Data (Tables) | 12 Months Ended
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Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Accounts, Notes, Loans and Financing Receivable | Accounts receivable—net consist of the following:
| December 31,
| 2025 |  | 2024
| (in millions)
Trade | $ | 444 |  |  | $ | 378 |
Other | 44 |  |  | 26 |
Accounts receivable—net | $ | 488 |  |  | $ | 404 |
Schedule of inventory, current | Inventories consist of the following:
| December 31,
| 2025 |  | 2024
| (in millions)
Finished goods | $ | 332 |  |  | $ | 263 |
Raw materials, spare parts and supplies | 51 |  |  | 51 |
Total inventories | $ | 383 |  |  | $ | 314 |
Schedule of Other Assets | Other assets consist of the following:
| December 31,
| 2025 |  | 2024
| (in millions)
Spare parts | $ | 228 |  |  | $ | 208 |
Nonqualified employee benefit trusts | 18 |  |  | 17 |
Tax-related assets | 654 |  |  | 638 |
Other | 80 |  |  | 54 |
Total other assets | $ | 980 |  |  | $ | 917 |
Schedule of accounts payable and accrued liabilities | Accounts payable and accrued expenses consist of the following:
| December 31,
| 2025 |  | 2024
| (in millions)
Accounts payable(1) | $ | 148 |  |  | $ | 125 |
Accrued capital expenditures(1) | 51 |  |  | 59 |
Accrued natural gas costs | 127 |  |  | 106 |
Payroll and employee-related costs | 113 |  |  | 69 |
Accrued interest | 32 |  |  | 30 |
Other | 210 |  |  | 214 |
Total accounts payable and accrued expenses | $ | 681 |  |  | $ | 603 |
___________________________________________________________________________ (1)As of December 31, 2025 and 2024, accrued capital expenditures totaled $118 million and $101 million, respectively, of which $65 million and $42 million, respectively, are included within accounts payable in the table above, and as of December 31, 2025, $2 million is included in other liabilities.
Other noncurrent liabilities | Other liabilities consist of the following:
| December 31,
| 2025 |  | 2024
| (in millions)
Benefit plans and deferred compensation | $ | 47 |  |  | $ | 40 |
Tax-related liabilities | 262 |  |  | 245 |
Other | 28 |  |  | 16 |
Other liabilities | $ | 337 |  |  | $ | 301 |

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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- Definition Tabular disclosure of the (a) carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business (accounts payable); (b) other payables; and (c) accrued liabilities. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). An alternative caption includes accrued expenses. + References No definition available. + Details
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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483489/210-10-50-1 + Details
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