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Inventory (Policies)	3 Months Ended
Inventory (Policies)	Mar. 31, 2023
Inventory Disclosure [Abstract]
Inventory	Crude oil feedstocks, refined products, blendstocks and asphalt inventory for all of our operations, excluding merchandise inventory in our retail segment, are stated at the lower of cost determined using FIFO basis or net realizable value. Retail merchandise inventory consists of cigarettes, beer, convenience merchandise and food service merchandise and is stated at estimated cost as determined by the retail inventory method.

Disclosure of inventory accounting policy for inventory classes, including, but not limited to, basis for determining inventory amounts, methods by which amounts are added and removed from inventory classes, loss recognition on impairment of inventories, and situations in which inventories are stated above cost.

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