INVENTORIES (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Inventory [Line Items]
Crude oil and feedstocks	$ 1,104,900,000	$ 1,018,900,000
Refined products and blendstocks	1,258,400,000	1,200,200,000
Warehouse stock and other	141,800,000	136,700,000
Inventory, Gross	2,505,100,000	2,355,800,000
Lower of cost or market adjustment	0	669,600,000	$ 401,600,000
Total inventories	2,505,100,000	1,686,200,000
Income from operations	404,000,000.0	(1,611,400,000)	$ 498,500,000
Inventory, LIFO Reserve, Effect on Income, Net	0	83,000,000
Titled Inventory [Member]
Inventory [Line Items]
Crude oil and feedstocks	953,500,000	1,018,900,000
Refined products and blendstocks	964,600,000	933,700,000
Warehouse stock and other	141,800,000	136,700,000
Inventory, Gross	2,059,900,000	2,089,300,000
Lower of cost or market adjustment	0	572,400,000
Total inventories	2,059,900,000	1,516,900,000
Inventory Supply and Offtake Arrangements [Member]
Inventory [Line Items]
Crude oil and feedstocks	151,400,000	0
Refined products and blendstocks	293,800,000	266,500,000
Warehouse stock and other	0	0
Inventory, Gross	445,200,000	266,500,000
Lower of cost or market adjustment	0	97,200,000
Total inventories	445,200,000	169,300,000
Adjustment [Member]
Inventory [Line Items]
Income from operations	$ 669,600,000	$ (268,000,000)