REVENUES (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Total Revenues	$ 10,725.3	$ 12,752.3	$ 29,159.2	$ 35,944.5
Deferred revenue	79.1		79.1		$ 37.5
Gasoline and distillates
Total Revenues	9,623.1	11,244.4	25,997.8	31,803.0
Feedstocks and other
Total Revenues	489.0	554.3	1,256.6	1,341.1
Asphalt and blackoils
Total Revenues	388.1	603.9	1,176.3	1,730.0
Chemicals
Total Revenues	158.7	246.4	473.1	744.6
Lubricants
Total Revenues	$ 66.4	$ 103.3	$ 255.4	$ 325.8