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Inventory
9 Months Ended
Sep. 30, 2024
Inventory Disclosure [Abstract]  
INVENTORY INVENTORY
The following table summarizes the Company’s inventory balances as of the dates indicated (in millions):
September 30, 2024December 31, 2023
Fuel and other raw materials$320 $424 
Spare parts and supplies326 288 
Total$646 $712