Long-Term Obligations - Revolving Credit Facilities Schedule (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Line of Credit Facility [Line Items]
Outstanding Borrowings	$ 3,230.8	$ 2,816.4
Outstanding Letters of Credit	$ 250.0	$ 200.0
Delek Logistics Revolving Facility | Maximum
Line of Credit Facility [Line Items]
Unused capacity, commitment fee percentage	0.45%
Line of Credit | DKL Revolver, Senior Secured Revolving Commitment | Minimum | Prime Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (percentage)	1.00%
Line of Credit | DKL Revolver, Senior Secured Revolving Commitment | Minimum | Total Leverage Ratio Interest Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (percentage)	2.00%
Line of Credit | DKL Revolver, Senior Secured Revolving Commitment | Maximum | Prime Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (percentage)	2.00%
Line of Credit | DKL Revolver, Senior Secured Revolving Commitment | Maximum | Total Leverage Ratio Interest Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (percentage)	3.00%
Secured Debt
Line of Credit Facility [Line Items]
Weighted average interest rate (percentage)	7.19%	7.44%
Secured Debt | DKL Revolver, Senior Secured Revolving Commitment | Minimum | Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (percentage)	0.10%
Secured Debt | DKL Revolver, Senior Secured Revolving Commitment | Maximum | Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (percentage)	0.25%
Revolving Credit Facility | Letter of Credit
Line of Credit Facility [Line Items]
Total Capacity	$ 500.0
Revolving Credit Facility | Line of Credit | Minimum | Base Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (percentage)	0.25%
Revolving Credit Facility | Line of Credit | Minimum | Secured Overnight Financing Rate (SOFR) and Canadian Overnight Financing Rate (CDOR)
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (percentage)	1.25%
Revolving Credit Facility | Line of Credit | Maximum
Line of Credit Facility [Line Items]
Unused capacity, commitment fee percentage	0.30%
Revolving Credit Facility | Line of Credit | Maximum | Base Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (percentage)	0.75%
Revolving Credit Facility | Line of Credit | Maximum | Secured Overnight Financing Rate (SOFR) and Canadian Overnight Financing Rate (CDOR)
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (percentage)	1.75%
Revolving Credit Facility | Line of Credit | Delek Revolving Credit Facility
Line of Credit Facility [Line Items]
Total Capacity	$ 1,100.0
Outstanding Borrowings	0.0
Outstanding Letters of Credit	419.4
Available Capacity	680.6
Revolving Credit Facility | Line of Credit | Delek Logistics Revolving Facility
Line of Credit Facility [Line Items]
Total Capacity	1,150.0
Outstanding Borrowings	156.9	$ 435.4
Outstanding Letters of Credit	0.0
Available Capacity	$ 993.1
Revolving Credit Facility | Line of Credit | DKL Revolver, Senior Secured Revolving Commitment
Line of Credit Facility [Line Items]
Weighted average interest rate (percentage)	7.39%	7.27%
Letter of Credit | Line of Credit | Delek Logistics Revolving Facility
Line of Credit Facility [Line Items]
Total Capacity	$ 146.9
US Swing Line Sublimit | Line of Credit | Delek Logistics Revolving Facility
Line of Credit Facility [Line Items]
Total Capacity	$ 31.9