Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (520.9)	$ 46.7	$ 290.5
Other comprehensive (loss) income:
Net actuarial gain (loss)	0.9	0.7	(1.9)
Amortization of net actuarial gain	(0.1)	(0.2)	0.0
Net change related to postretirement benefit plans	0.8	0.5	(1.9)
Income tax expense (benefit)	0.1	0.1	(0.5)
Net comprehensive gain (loss) on postretirement benefit plans	0.7	0.4	(1.4)
Total other comprehensive income (loss)	0.7	0.4	(1.4)
Comprehensive (loss) income attributable to:	(520.2)	47.1	289.1
Non-controlling interest	39.5	26.9	33.4
Comprehensive (loss) income attributable to Delek	$ (559.7)	$ 20.2	$ 255.7