Consolidated Statements Of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018		Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Sales and other revenues	$ 4,471,236		$ 3,458,864	$ 8,599,663	$ 6,539,347
Operating costs and expenses:
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
Costs of products sold, net	3,488,990		2,837,441	6,732,277	5,490,439
Operating expenses (exclusive of depreciation and amortization)	296,215	[1]	316,261	616,503	623,987
Selling, general and administrative expenses (exclusive of depreciation and amortization)	68,675		59,803	133,339	117,051
Depreciation and amortization	110,379		105,282	214,720	201,322
Long-lived asset impairment	0		19,247	0	19,247
Total operating costs and expenses	3,964,259		3,338,034	7,696,839	6,452,046
Income from operations	506,977		120,830	902,824	87,301
Other income (expense):
Earnings of equity method investments	1,734		4,053	3,013	5,893
Interest income	2,934		176	5,524	995
Interest expense	(32,324)		(29,645)	(65,047)	(56,803)
Loss on early extinguishment of debt	0		0	0	(12,225)
Gain (loss) on foreign currency transactions	(325)		10,328	5,235	395
Gain on foreign currency swap contracts	0		0	0	24,545
Other, net	1,364		327	2,710	1,397
Other income (expense) total	(26,617)		(14,761)	(48,565)	(35,803)
Income before income taxes	480,360		106,069	854,259	51,498
Income tax expense (benefit):
Current	88,283		32,251	145,934	7,935
Deferred	29,164		(255)	56,550	7,272
Income tax expense (benefit)	117,447		31,996	202,484	15,207
Net income	362,913		74,073	651,775	36,291
Less net income attributable to noncontrolling interest	17,406		16,306	38,177	23,992
Net income attributable to HollyFrontier stockholders	$ 345,507		$ 57,767	$ 613,598	$ 12,299
Earnings per share attributable to HollyFrontier stockholders:
Basic	$ 1.96		$ 0.33	$ 3.47	$ 0.07
Diluted	1.94		0.33	3.44	0.07
Cash dividends declared per common share	$ 0.33		$ 0.33	$ 0.66	$ 0.66
Average number of common shares outstanding:
Basic	175,899		176,147	176,256	176,141
Diluted	177,586		176,302	177,820	176,490

[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.