Inventories (Tables)

12 Months Ended

Dec. 31, 2020

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories consisted of the following (in millions):

	December 31,
	2020		2019
Refinery feedstocks	$	1,979	$	2,399
Refined petroleum products and blendstocks	3,425		4,034
Renewable diesel feedstocks and products	50		46
Ethanol feedstocks and products	297		260
Materials and supplies	287		274
Inventories	$	6,038	$	7,013