Equity Method Investments (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022 USD ($) joint_venture	Mar. 31, 2021 USD ($)		Dec. 31, 2021 USD ($)		Feb. 21, 2020	Jul. 30, 2019	May 31, 2019
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Equity Method Investments	$ 0.0	$ 1.5	[1]
Equity method investments	347.8			$ 344.1	[2]
Income (loss)from equity method investment	10.9	4.8	[1],[3]
Red River Pipeline Company LLC
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage (as percent)								33.00%
Red River Expansion
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Equity Method Investments	0.0
Wink To Webster Pipeline LLC
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage (as percent)							15.00%
Equity method investments	51.4			49.3
Income (loss)from equity method investment	2.1	(0.3)
Red River
Schedule of Equity Method Investments [Line Items]
Equity method investments	144.6			144.0
Income (loss)from equity method investment	5.2	2.2
Joint Ventures | Delek Logistics
Schedule of Equity Method Investments [Line Items]
Equity method investments	105.3			106.0
Income (loss)from equity method investment	$ 1.8
Number of joint ventures | joint_venture	2
Joint Ventures | Delek Renewables, LLC
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 3.3			3.2
Income (loss)from equity method investment	$ 0.2	0.2
Joint Ventures | Delek US Holdings, Inc.
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage (as percent)	50.00%
Equity method investments	$ 43.2			$ 41.6
Income (loss)from equity method investment	$ 1.6	$ 0.9
CP LLC
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage (as percent)	50.00%
Rangeland Rio
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage (as percent)	33.00%
W2W Holdings LLC
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage (as percent)						50.00%

[1] Adjusted to reflect the retrospective change in accounting policy from LIFO to FIFO for certain inventories. See Note 6 for further discussion.

[2] Adjusted to reflect the retrospective change in accounting policy from LIFO to FIFO for certain inventories. See Note 6 for further discussion.

[3] Adjusted to reflect the retrospective change in accounting policy from LIFO to FIFO for certain inventories. See Note 6 for further discussion.