Equity Method Investments - Narrative (Details) $ in Millions	6 Months Ended
	Jun. 30, 2025 USD ($) jointVenture	Dec. 31, 2024 USD ($)	Aug. 05, 2024
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 409.3	$ 392.9
Wink to Webster Pipeline LLC
Schedule of Equity Method Investments [Line Items]
Indirect interest, ownership percentage	15.60%		15.60%
Equity method investments	$ 95.2	86.1
W2W Holdings LLC
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%		50.00%
Red River Pipeline Company LLC \| Delek Logistics Partners, LP
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	33.00%
Equity method investments	$ 133.2	136.5
Plains All American Pipeline And Andeavor Logistics \| Delek Logistics Partners, LP
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 91.8	94.6
Number of joint ventures \| jointVenture	2
Plains All American Pipeline \| Delek Logistics Partners, LP
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%
Andeavor Logistics \| Delek Logistics Partners, LP
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	33.00%
Other Joint Venture Investments
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 89.1	$ 75.7
Asphalt Terminal Joint Venture
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%
Ethanol Unit Train Facility And Tank Joint Venture
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%

Delek US Holdings, Inc. 10-Q