Segment Information (Schedule Of Segment Reporting Information) (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018		Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Segment Reporting Information [Line Items]
Sales and other revenues	$ 4,471,236		$ 3,458,864	$ 8,599,663	$ 6,539,347
Intersegment Revenues	0		0	0	0
Revenues	4,471,236		3,458,864	8,599,663	6,539,347
Cost of products sold (exclusive of lower of cost or market inventory valuation adjustment)	3,595,916	[1]	2,753,459	6,943,041	5,394,634
Lower of cost or market inventory valuation adjustment	(106,926)		83,982	(210,764)	95,805
Operating expenses	296,215	[1]	316,261	616,503	623,987
Selling, general and administrative expenses	68,675		59,803	133,339	117,051
Depreciation and amortization	110,379		105,282	214,720	201,322
Income from operations	506,977		120,830	902,824	87,301
Earnings of equity method investments	1,734		4,053	3,013	5,893
Net income (loss)	362,913		74,073	651,775	36,291
Capital expenditures	79,937		77,293	149,477	137,050
Cash, cash equivalents, and total investments in marketable securities	979,872			979,872		$ 630,757
Total assets	11,281,352			11,281,352		10,692,154
Long-term debt	2,387,759			2,387,759		2,498,993
Asset Impairment Charges			19,247		19,247
Refining
Segment Reporting Information [Line Items]
Sales and other revenues	3,987,115		2,999,054	7,645,262	5,741,781
Intersegment Revenues	91,866		105,545	182,904	185,453
Revenues	4,078,981		3,104,599	7,828,166	5,927,234
Cost of products sold (exclusive of lower of cost or market inventory valuation adjustment)	3,394,853		2,615,937	6,606,557	5,175,091
Lower of cost or market inventory valuation adjustment	(106,926)		82,794	(210,764)	94,325
Operating expenses	262,558		242,713	502,405	497,084
Selling, general and administrative expenses	26,201		22,654	52,572	45,019
Depreciation and amortization	72,989		75,426	140,164	144,864
Income from operations	429,306		45,828	737,232	(48,396)
Earnings of equity method investments	0		0	0	0
Capital expenditures	42,188		51,825	84,962	99,259
Cash, cash equivalents, and total investments in marketable securities	8,223			8,223		7,488
Total assets	7,020,880			7,020,880		6,474,666
Long-term debt	0			0		0
Asset Impairment Charges			19,247		19,247
Lubricants and other specialty products
Segment Reporting Information [Line Items]
Sales and other revenues	459,405		444,000	902,271	765,269
Intersegment Revenues	8,284		0	10,258	0
Revenues	467,689		444,000	912,529	765,269
Cost of products sold (exclusive of lower of cost or market inventory valuation adjustment)	373,141	[1]	317,921	680,672	548,702
Lower of cost or market inventory valuation adjustment	0		1,188	0	1,480
Operating expenses	19,905	[1]	55,750	84,813	95,069
Selling, general and administrative expenses	35,257		27,769	65,911	41,082
Depreciation and amortization	10,020		7,532	18,884	12,836
Income from operations	29,366		33,840	62,249	66,100
Earnings of equity method investments	0		0	0	0
Capital expenditures	16,842		9,122	25,380	10,957
Cash, cash equivalents, and total investments in marketable securities	92,483			92,483		41,756
Total assets	1,402,189			1,402,189		1,610,472
Long-term debt	0			0		0
Asset Impairment Charges			0		0
HEP
Segment Reporting Information [Line Items]
Sales and other revenues	24,746		15,990	52,203	32,599
Intersegment Revenues	94,014		93,153	195,441	182,178
Revenues	118,760		109,143	247,644	214,777
Cost of products sold (exclusive of lower of cost or market inventory valuation adjustment)	0		0	0	0
Lower of cost or market inventory valuation adjustment	0		0	0	0
Operating expenses	34,533		34,160	70,736	66,712
Selling, general and administrative expenses	2,673		2,618	5,795	5,255
Depreciation and amortization	24,609		19,541	49,750	37,914
Income from operations	56,945		52,824	121,363	104,896
Earnings of equity method investments	1,734		4,053	3,013	5,893
Capital expenditures	18,957		12,259	31,570	20,524
Cash, cash equivalents, and total investments in marketable securities	6,656			6,656		7,776
Total assets	2,154,741			2,154,741		2,191,984
Long-term debt	1,395,599			1,395,599		1,507,308
Asset Impairment Charges			0		0
Corporate, Other and Eliminations
Segment Reporting Information [Line Items]
Sales and other revenues	(30)		(180)	(73)	(302)
Intersegment Revenues	(194,164)		(198,698)	(388,603)	(367,631)
Revenues	(194,194)		(198,878)	(388,676)	(367,933)
Cost of products sold (exclusive of lower of cost or market inventory valuation adjustment)	(172,078)		(180,399)	(344,188)	(329,159)
Lower of cost or market inventory valuation adjustment	0		0	0	0
Operating expenses	(20,781)		(16,362)	(41,451)	(34,878)
Selling, general and administrative expenses	4,544		6,762	9,061	25,695
Depreciation and amortization	2,761		2,783	5,922	5,708
Income from operations	(8,640)		(11,662)	(18,020)	(35,299)
Earnings of equity method investments	0		0	0	0
Capital expenditures	1,950		4,087	7,565	6,310
Cash, cash equivalents, and total investments in marketable securities	872,510			872,510		573,737
Total assets	703,542			703,542		415,032
Long-term debt	$ 992,160			$ 992,160		$ 991,685
Asset Impairment Charges			$ 0		$ 0

[1] (1) During the three months ended June 30, 2018, we recognized an adjustment in our Lubricants and Specialty Products segment to correct an expense misclassification related to the three months ended March 31, 2018, whereby $24 million of inventory transportation costs were classified as operating expenses, which should have been included in cost of products sold.