INVENTORIES (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Inventory [Line Items]
Refined products and blendstocks	$ 1,319,600,000		$ 1,319,600,000		$ 1,536,500,000
Crude oil and feedstocks	1,278,700,000		1,278,700,000		1,495,400,000
Warehouse stock and other	161,900,000		161,900,000		151,200,000
Inventory, Gross	2,760,200,000		2,760,200,000		3,183,100,000
Lower of cost or market adjustment	(154,500,000)		(154,500,000)		0
Total inventories	2,605,700,000		2,605,700,000		3,183,100,000
Income from operations	406,300,000	$ (1,018,200,000)	405,600,000	$ (1,870,100,000)
Excess of Replacement or Current Costs over Stated LIFO Value					$ 49,900,000
Scenario, Adjustment
Inventory [Line Items]
Income from operations	$ 154,500,000		$ 154,500,000