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Inventories, net (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2021
Dec. 31, 2022
Inventory Disclosure [Abstract]      
Fuel $ 876   $ 809
Other 13   12
Inventories, net 889   821
Inventory Valuation Reserves 230   $ 116
Inventory Adjustments 114    
Inventory Write-down $ (190) $ (5)