Property, Plant and Equipment (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant and equipment		$ 2,100.1	$ 1,952.9
Less: accumulated depreciation		(579.0)	(509.6)
Property, plant and equipment, net		1,521.1	1,443.3
Depreciation expense		132.7	110.2
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment		112.9	95.8
Building and building improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment		261.6	266.0
Refinery machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment		973.3	771.4
Pipelines and terminals [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment		266.2	260.1
Retail store equipment and site improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment		198.0	187.4
Refinery turnaround costs [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment		123.9	112.0
Other equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment		90.6	77.8
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment		73.6	182.4
Operating Segments [Member] | Refining [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	[1]	1,185.1	1,078.0
Less: accumulated depreciation	[1]	(282.0)	(252.6)
Property, plant and equipment, net	[1]	903.1	825.4
Depreciation expense	[1]	80.2	63.2
Operating Segments [Member] | Logistics [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	[1]	325.6	308.1
Less: accumulated depreciation	[1]	(71.8)	(53.3)
Property, plant and equipment, net	[1]	253.8	254.8
Depreciation expense	[1]	18.6	13.9
Operating Segments [Member] | Retail [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment		532.6	511.9
Less: accumulated depreciation		(211.4)	(194.5)
Property, plant and equipment, net		321.2	317.4
Depreciation expense		28.9	28.5
Corporate, other and eliminations [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment		56.8	54.9
Less: accumulated depreciation		(13.8)	(9.2)
Property, plant and equipment, net		43.0	45.7
Depreciation expense		$ 5.0	$ 4.6

[1] In conjunction with the El Dorado Offloading Racks Acquisition and the Tyler Crude Tank Acquisition, we have retrospectively adjusted certain operating segments. Certain assets previously operated by our refining segment were contributed to Delek Logistics.