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Inventory (Tables) | 9 Months Ended
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Sep. 30, 2025
Inventory Disclosure [Abstract] |
Inventory Balance By Type | The following table summarizes the Company’s inventory balances as of the dates indicated (in millions):
| September 30, 2025 |  | December 31, 2024
Spare parts and supplies | $ | 388 |  |  | $ | 347 |
Fuel and other raw materials | 219 |  |  | 246 |
Total | $ | 607 |  |  | $ | 593 |

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- Definition Tabular disclosure of inventories not expected to be converted to cash, sold or exchanged within the normal operating cycle including inventoried costs relating to long-term contracts or programs. + References No definition available. + Details
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