Segment Data - Operating Performance (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Net revenues	$ (2,373.7)	$ (3,042.4)	$ (3,308.1)	$ (3,128.0)	$ (3,942.1)	$ (4,628.8)	$ (4,074.4)	$ (3,821.9)	$ (11,852.2)	$ (16,467.2)	$ (19,801.0)
Cost of materials and other									10,781.8	14,825.3	18,071.4
Operating Expenses									767.2	775.0	726.7
General and administrative expenses									252.8	272.0	313.7
Income from equity method investments									(92.2)	(86.2)	(57.7)
Other									200.6	33.9	(12.3)
Segment EBITDA attributable to Delek									(58.0)	647.2	759.2
Depreciation and amortization									374.5	339.5	275.0
Interest expense, net									313.0	318.0	195.8
Income tax (benefit) expense									(107.9)	(3.0)	56.4
Income (loss) from discontinued operations, net of tax									(77.2)	(27.1)	(25.1)
Net (loss) income attributable to Delek	$ (413.8)	$ (76.8)	$ (37.2)	$ (32.6)	(164.9)	$ 128.7	$ (8.3)	$ 64.3	(560.4)	19.8	257.1
Capital spending									432.7	359.3	308.9
Impairment of goodwill									212.2	14.8	0.0
Asset impairment									243.5	37.9	0.0
Right-of-use asset impairment					$ 23.1					23.1
Discontinued Operations, Disposed of by Sale | Retail Stores
Segment Reporting Information [Line Items]
Capital spending									14.0	29.8	34.2
Refining
Segment Reporting Information [Line Items]
Asset impairment									22.1
Operating Segments | Refining
Segment Reporting Information [Line Items]
Net revenues									(11,783.0)	(16,406.9)	(19,763.0)
Cost of materials and other									11,147.4	15,242.3	18,412.8
Operating Expenses									596.6	619.2	622.5
General and administrative expenses									15.2	31.2	57.2
Income from equity method investments									(31.2)	(31.9)	(18.5)
Other									213.0	(14.6)	(47.6)
Segment EBITDA attributable to Delek									(158.0)	560.7	736.6
Depreciation and amortization									265.5	234.2	205.4
Interest expense, net									81.4	42.3	4.1
Capital spending									266.1	246.9	138.0
Impairment of goodwill									212.2	0.0
Asset impairment									22.1
Operating Segments | Logistics
Segment Reporting Information [Line Items]
Net revenues									(940.6)	(1,020.4)	(1,036.4)
Cost of materials and other									483.7	532.6	641.4
Operating Expenses									122.7	118.1	88.3
General and administrative expenses									36.0	24.8	34.1
Income from equity method investments									(43.3)	(31.4)	(31.7)
Other									(1.2)	13.3	(0.5)
Segment EBITDA attributable to Delek									342.7	363.0	304.8
Depreciation and amortization									102.8	92.4	63.0
Interest expense, net									103.1	143.2	82.3
Capital spending									140.0	81.3	130.7
Impairment of goodwill									0.0	14.8
Inter-segment fees and revenues
Segment Reporting Information [Line Items]
Net revenues									287.0	432.5	512.1
Inter-segment fees and revenues | Refining
Segment Reporting Information [Line Items]
Net revenues									640.6	828.8	1,032.1
Inter-segment fees and revenues | Logistics
Segment Reporting Information [Line Items]
Net revenues									517.8	563.8	479.4
Corporate, Other and Eliminations
Segment Reporting Information [Line Items]
Net revenues									0.0	0.0	(1.0)
Cost of materials and other									(849.3)	(949.6)	(982.8)
Operating Expenses									47.9	37.7	15.9
General and administrative expenses									201.6	216.0	222.4
Income from equity method investments									(17.7)	(22.9)	(7.5)
Other									(11.2)	35.2	35.8
Segment EBITDA attributable to Delek									(242.7)	(276.5)	(282.2)
Depreciation and amortization									6.2	12.9	6.6
Interest expense, net									128.5	132.5	109.4
Capital spending									26.6	31.1	40.2
Asset impairment									9.2
Corporate and Eliminations
Segment Reporting Information [Line Items]
Net revenues									871.4	960.1	999.4
Operating Segments Excluding Intersegment Elimination
Segment Reporting Information [Line Items]
Net revenues									(11,565.2)	(16,034.7)	(19,288.9)
Operating Segments Excluding Intersegment Elimination | Refining
Segment Reporting Information [Line Items]
Net revenues									(11,142.4)	(15,578.1)	(18,730.9)
Operating Segments Excluding Intersegment Elimination | Logistics
Segment Reporting Information [Line Items]
Net revenues									(422.8)	(456.6)	(557.0)
Corporate Reconciling Items And Eliminations
Segment Reporting Information [Line Items]
Net revenues									$ 871.4	$ 960.1	$ 998.4