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Inventories (Tables)
3 Months Ended
Mar. 31, 2024
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventories consisted of the following (in millions):
March 31,
2024
December 31,
2023
Refinery feedstocks$2,366 $2,223 
Refined petroleum products and blendstocks
3,847 3,790 
Renewable diesel feedstocks and products
1,051 913 
Ethanol feedstocks and products300 313 
Materials and supplies348 344 
Inventories$7,912 $7,583