Consolidated Statements Of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Condensed Income Statements, Captions [Line Items]
Sales and other revenues	$ 4,424,828	$ 4,770,799	$ 13,104,690	$ 13,370,462
Operating costs and expenses:
Cost of products sold (exclusive of lower of cost or market inventory valuation adjustment)	3,403,767	3,752,234	10,307,856	10,695,275
Lower of cost or market inventory valuation adjustment	34,062	17,837	(150,483)	(192,927)
Costs of products sold, net	3,437,829	3,770,071	10,157,373	10,502,348
Operating expenses (exclusive of depreciation and amortization)	345,578	317,196	1,010,422	933,699
Selling, general and administrative expenses (exclusive of depreciation and amortization)	87,626	71,130	260,977	204,469
Depreciation and amortization	127,016	108,885	375,345	323,605
Goodwill, Impairment Loss	0	0	152,712	0
Total operating costs and expenses	3,998,049	4,267,282	11,956,829	11,964,121
Income from operations	426,779	503,517	1,147,861	1,406,341
Other income (expense):
Earnings of equity method investments	1,334	1,114	5,217	4,127
Interest income	6,164	5,136	17,127	10,660
Interest expense	(36,027)	(32,399)	(106,938)	(97,446)
Gain (loss) on foreign currency transactions	395	281	4,873	5,516
Other, net	2,356	741	3,005	3,451
Other income (expense) total	(25,778)	(25,127)	(76,716)	(73,692)
Income before income taxes	401,001	478,390	1,071,145	1,332,649
Income tax expense (benefit):
Current	58,255	70,595	176,903	216,529
Deferred	44,766	45,663	102,959	102,213
Income tax expense (benefit)	103,021	116,258	279,862	318,742
Net income	297,980	362,132	791,283	1,013,907
Less net income attributable to noncontrolling interest	36,167	19,666	79,500	57,843
Net income attributable to HollyFrontier stockholders	$ 261,813	$ 342,466	$ 711,783	$ 956,064
Earnings per share attributable to HollyFrontier stockholders:
Basic	$ 1.60	$ 1.95	$ 4.23	$ 5.42
Diluted	$ 1.58	$ 1.93	$ 4.20	$ 5.37
Average number of common shares outstanding:
Basic	163,676	175,097	167,935	175,865
Diluted	165,011	176,927	169,125	177,557