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Inventory (Tables) | 3 Months Ended
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Mar. 31, 2023
Inventory Disclosure [Abstract] |
Inventory Balance By Type | The following table summarizes the Company’s inventory balances as of the periods indicated (in millions):
| March 31, 2023 |  | December 31, 2022
Fuel and other raw materials | $ | 587 |  |  | $ | 733 |
Spare parts and supplies | 277 |  |  | 322 |
Total | $ | 864 |  |  | $ | 1,055 |

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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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