REVENUES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Total Revenues	$ 9,148.4	$ 14,064.0	$ 18,433.9	$ 23,192.2
Deferred revenue	74.8		74.8		$ 37.5
Gasoline and distillates
Total Revenues	8,142.1	12,520.9	16,374.7	20,558.6
Asphalt and blackoils
Total Revenues	385.0	667.2	788.2	1,126.1
Feedstocks and other
Total Revenues	349.8	451.9	767.6	786.8
Chemicals
Total Revenues	174.2	291.2	314.4	498.2
Lubricants
Total Revenues	$ 97.3	$ 132.8	$ 189.0	$ 222.5