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Inventories | 9 Months Ended
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Sep. 30, 2025
Inventory Disclosure [Abstract] |
Inventories | (3) Inventories Inventories consisted of the following:
(in millions) | September 30, 2025 |  | December 31, 2024
Finished goods | $ | 217 |  |  | $ | 221 |
Raw materials | 140 |  |  | 146 |
In-process inventories | 39 |  |  | 28 |
Parts, supplies and other | 113 |  |  | 107 |
Total inventories | $ | 509 |  |  | $ | 502 |
At September 30, 2025, the Renewables Segment had inventories with carrying amounts exceeding their net realizable value, which is estimated using indicative market pricing available at the time the estimate was made. As a result, we recognized a loss of $9 million and $12 million for the three and nine months ended September 30, 2025, respectively, in Cost of materials and other in the Company’s Condensed Consolidated Statements of Operations to reflect the net realizable value of such inventories. No adjustment was necessary for the three and nine months ended September 30, 2024.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 330 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/330/tableOfContent + Details
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