Segment Data - Operating Performance (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021		Dec. 31, 2020
Segment Reporting Information [Line Items]
Net revenues (excluding intercompany fees and revenues)									$ 20,245.8	$ 10,648.2
Total sales	$ 4,479.2	$ 5,324.9	$ 5,982.6	$ 4,459.1	$ 3,108.0	$ 2,956.5	$ 2,191.5	$ 2,392.2	20,245.8	10,648.2	[1]	$ 7,301.8	[1]
Segment EBITDA attributable to Delek									803.3	231.0		(411.7)
Depreciation and amortization									(287.0)	(264.6)	[2]	(267.6)	[2]
Interest Income (Expense), Net									(195.3)	(136.7)	[1]	(125.7)	[1]
Income Tax (Expense) Benefit									(63.9)	42.0	[1]	193.6	[1]
Net income (loss) attributable to Delek	$ (118.7)	$ 7.4	$ 361.8	$ 6.6	$ (13.4)	$ 11.8	$ (56.7)	$ (70.0)	257.1	(128.3)	[1]	(611.4)	[1]
Capital spending (excluding business combinations)									343.1	227.1		239.6
Refining
Segment Reporting Information [Line Items]
Total sales									19,763.0	10,267.8		6,855.3
Logistics
Segment Reporting Information [Line Items]
Total sales									1,036.4	700.9		563.4
Retail
Segment Reporting Information [Line Items]
Total sales									956.9	797.4		681.7
Operating Segments
Segment Reporting Information [Line Items]
Net revenues (excluding intercompany fees and revenues)												7,301.8
Operating Segments | Refining
Segment Reporting Information [Line Items]
Net revenues (excluding intercompany fees and revenues)									18,730.9	9,564.9		6,418.0
Segment EBITDA attributable to Delek									719.1	69.2		(549.3)
Depreciation and amortization									(205.4)	(198.7)		(198.3)
Interest Income (Expense), Net									(4.1)	17.4		34.9
Capital spending (excluding business combinations)									138.0	172.4		201.0
Operating Segments | Logistics
Segment Reporting Information [Line Items]
Net revenues (excluding intercompany fees and revenues)									557.0	282.1		183.6
Segment EBITDA attributable to Delek									304.8	258.0		238.1
Depreciation and amortization									(63.0)	(42.8)		(35.7)
Interest Income (Expense), Net									(82.3)	(50.2)		(42.9)
Capital spending (excluding business combinations)									130.7	27.5		15.8
Operating Segments | Retail
Segment Reporting Information [Line Items]
Net revenues (excluding intercompany fees and revenues)									956.9	797.4		681.7
Segment EBITDA attributable to Delek									44.1	51.1		47.0
Depreciation and amortization									(12.0)	(12.7)		(13.2)
Interest Income (Expense), Net									0.5	0.0		0.0
Capital spending (excluding business combinations)									34.2	5.1		9.1
Inter-segment fees and revenues
Segment Reporting Information [Line Items]
Total sales									(1,511.5)	(1,121.7)		(817.1)
Inter-segment fees and revenues | Refining
Segment Reporting Information [Line Items]
Total sales									1,032.1	702.9		437.3
Inter-segment fees and revenues | Logistics
Segment Reporting Information [Line Items]
Total sales									479.4	418.8		379.8
Inter-segment fees and revenues | Retail
Segment Reporting Information [Line Items]
Total sales									0.0	0.0		0.0
Corporate, Other and Eliminations
Segment Reporting Information [Line Items]
Net revenues (excluding intercompany fees and revenues)									1.0	3.8		18.5
Total sales									(1,510.5)	(1,117.9)		(798.6)
Segment EBITDA attributable to Delek									(264.7)	(147.3)		(147.5)
Depreciation and amortization									(6.6)	(10.4)		(20.4)
Interest Income (Expense), Net									(109.4)	(103.9)		(117.7)
Capital spending (excluding business combinations)									$ 40.2	$ 22.1		$ 13.7

[1] Adjusted to reflect the retrospective change in accounting policy from LIFO to FIFO for certain inventories. See Note 8 for further discussion.

[2] Adjusted to reflect the retrospective change in accounting policy from LIFO to FIFO for certain inventories. See Note 8 for further discussion.