INVENTORIES (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Inventory [Line Items]
Crude oil and feedstocks	$ 1,336,100,000	$ 1,104,900,000
Refined products and blendstocks	1,285,600,000	1,258,400,000
Warehouse stock and other	141,900,000	141,800,000
Inventory, Gross	2,763,600,000	2,505,100,000
Lower of cost or market adjustment	0	0	$ (669,600,000)
Total inventories	2,763,600,000	2,505,100,000
Income from operations	3,972,400,000	404,000,000.0	(1,611,400,000)
Inventory, LIFO reserve, effect on income	0	0	$ 83,000,000
Titled Inventory
Inventory [Line Items]
Crude oil and feedstocks	1,195,200,000	953,500,000
Refined products and blendstocks	1,244,700,000	964,600,000
Warehouse stock and other	141,900,000	141,800,000
Inventory, Gross	2,581,800,000	2,059,900,000
Lower of cost or market adjustment	0	0
Total inventories	2,581,800,000	2,059,900,000
Inventory Intermediation Agreement
Inventory [Line Items]
Crude oil and feedstocks	140,900,000	151,400,000
Refined products and blendstocks	40,900,000	293,800,000
Warehouse stock and other	0	0
Inventory, Gross	181,800,000	445,200,000
Lower of cost or market adjustment	0	0
Total inventories	$ 181,800,000	445,200,000
Adjustment
Inventory [Line Items]
Income from operations		$ 669,600,000