HF Sinclair 10-Q 6 Aug 14 2014 Q2 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	6 Months Ended
	Jun. 30, 2014	Jul. 31, 2014
Document And Entity Information [Abstract]	'	'
Entity Registrant Name	'HollyFrontier Corp	'
Entity Central Index Key	'0000048039	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	30-Jun-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q2	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	198,552,658

Consolidated_Balance_Sheets_Un

Consolidated Balance Sheets (Unaudited) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents (HEP: $6,066 and $6,352, respectively)	$1,118,302	$940,103
Marketable securities	679,668	725,160
Total cash, cash equivalents and short-term marketable securities	1,797,970	1,665,263
Accounts receivable: Product and transportation (HEP: $34,359 and $34,736, respectively)	731,673	665,098
Crude oil resales	48,507	43,704
Accounts receivable, total	780,180	708,802
Inventories: Crude oil and refined products	1,424,560	1,241,448
Materials and supplies (HEP: $1,582 and $1,591, respectively)	80,272	112,799
Inventories, total	1,504,832	1,354,247
Income taxes receivable	18,875	109,376
Prepayments and other (HEP: $2,164 and $2,283, respectively)	134,274	58,756
Total current assets	4,236,131	3,896,444
Properties, plants and equipment, at cost (HEP: $1,234,342 and $1,199,594, respectively)	4,562,824	4,343,857
Less accumulated depreciation (HEP: $(222,381) and $(194,619), respectively)	-1,070,081	-949,261
Property, plants and equipment, net	3,492,743	3,394,596
Marketable securities (long-term)	0	'
Other assets: Turnaround costs	222,929	258,436
Goodwill (HEP: $288,991 and $288,991, respectively)	2,331,922	2,331,922
Intangibles and other (HEP: $71,829 and $74,979, respectively)	174,658	175,341
Other assets, total	2,729,509	2,765,699
Total assets	10,458,383	10,056,739
Current liabilities:	'	'
Accounts payable (HEP: $17,706 and $22,898, respectively)	1,624,953	1,325,376
Accrued liabilities (HEP: $26,527 and $28,668, respectively)	125,761	125,115
Deferred income tax liabilities	216,981	223,999
Total current liabilities	1,967,695	1,674,490
Long-term debt (HEP: $839,253 and $807,630, respectively)	1,027,885	997,519
Deferred income taxes (HEP: $5,312 and $5,287, respectively)	657,465	616,842
Other long-term liabilities (HEP: $38,585 and $35,918, respectively)	138,719	158,490
HollyFrontier stockholders' equity:	'	'
Preferred stock, $1.00 par value - 5,000,000 shares authorized; none issued	0	0
Common stock $.01 par value - 320,000,000 shares authorized; 255,962,866 shares issued as of June 30, 2014 and December 31, 2013	2,560	2,560
Additional capital	4,004,642	3,990,630
Retained earnings	3,149,849	3,144,480
Accumulated other comprehensive income (loss)	75,440	822
Common stock held in treasury, at cost - 57,411,351 and 57,132,515 shares as of June 30, 2014 and December 31, 2013, respectively	-1,158,959	-1,138,872
Total HollyFrontier stockholders' equity	6,073,532	5,999,620
Noncontrolling interest	593,087	609,778
Total equity	6,666,619	6,609,398
Total liabilities and equity	10,458,383	10,056,739
HEP [Member]	'	'
Current assets:	'	'
Cash and cash equivalents (HEP: $6,066 and $6,352, respectively)	6,066	6,352
Accounts receivable: Product and transportation (HEP: $34,359 and $34,736, respectively)	34,359	34,736
Materials and supplies (HEP: $1,582 and $1,591, respectively)	1,582	1,591
Prepayments and other (HEP: $2,164 and $2,283, respectively)	2,164	2,283
Properties, plants and equipment, at cost (HEP: $1,234,342 and $1,199,594, respectively)	1,234,342	1,199,594
Less accumulated depreciation (HEP: $(222,381) and $(194,619), respectively)	-222,381	-194,619
Goodwill (HEP: $288,991 and $288,991, respectively)	288,991	288,991
Intangibles and other (HEP: $71,829 and $74,979, respectively)	71,829	74,979
Total assets	1,416,952	1,413,908
Current liabilities:	'	'
Accounts payable (HEP: $17,706 and $22,898, respectively)	17,706	22,898
Accrued liabilities (HEP: $26,527 and $28,668, respectively)	26,527	28,668
Long-term debt (HEP: $839,253 and $807,630, respectively)	839,253	807,630
Deferred income taxes (HEP: $5,312 and $5,287, respectively)	5,312	5,287
Other long-term liabilities (HEP: $38,585 and $35,918, respectively)	$38,585	$35,918

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Cash and cash equivalents (HEP: $6,066 and $6,352, respectively)	$1,118,302	$940,103
Accounts receivable Product and transportation	731,673	665,098
Materials and supplies (HEP: $1,582 and $1,591, respectively)	80,272	112,799
Prepayments and other (HEP: $2,164 and $2,283, respectively)	134,274	58,756
Property, Plant and Equipment, Gross	4,562,824	4,343,857
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	1,070,081	949,261
Goodwill	2,331,922	2,331,922
Intangibles and other	174,658	175,341
Accounts payable (HEP: $17,706 and $22,898, respectively)	1,624,953	1,325,376
Accrued liabilities (HEP: $26,527 and $28,668, respectively)	125,761	125,115
Long-term debt (HEP: $839,253 and $807,630, respectively)	1,027,885	997,519
Deferred income taxes (HEP: $5,312 and $5,287, respectively)	657,465	616,842
Other long-term liabilities (HEP: $38,585 and $35,918, respectively)	138,719	158,490
HollyFrontier Stockholders' Equity:	'	'
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	320,000,000	320,000,000
Common stock, shares issued	255,962,866	255,962,866
Preferred stock, par value	$1	$1
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Treasury stock, shares	0	57,132,515
HEP [Member]	'	'
Cash and cash equivalents (HEP: $6,066 and $6,352, respectively)	6,066	6,352
Accounts receivable Product and transportation	34,359	34,736
Materials and supplies (HEP: $1,582 and $1,591, respectively)	1,582	1,591
Prepayments and other (HEP: $2,164 and $2,283, respectively)	2,164	2,283
Property, Plant and Equipment, Gross	1,234,342	1,199,594
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	222,381	194,619
Goodwill	288,991	288,991
Intangibles and other	71,829	74,979
Accounts payable (HEP: $17,706 and $22,898, respectively)	17,706	22,898
Accrued liabilities (HEP: $26,527 and $28,668, respectively)	26,527	28,668
Long-term debt (HEP: $839,253 and $807,630, respectively)	839,253	807,630
Deferred income taxes (HEP: $5,312 and $5,287, respectively)	5,312	5,287
Other long-term liabilities (HEP: $38,585 and $35,918, respectively)	$38,585	$35,918

Consolidated_Statements_Of_Inc

Consolidated Statements Of Income (Unaudited) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]	'	'	'	'
Sales and other revenues	$5,372,600	$5,298,848	$10,163,653	$10,006,637
Operating costs and expenses:	'	'	'	'
Cost of products sold (exclusive of depreciation and amortization)	4,674,846	4,456,808	8,813,466	8,249,343
Operating expenses (exclusive of depreciation and amortization)	271,654	277,542	545,620	542,641
General and administrative expenses (exclusive of depreciation and amortization)	28,365	34,000	55,288	63,198
Depreciation and amortization	101,390	70,492	181,938	142,254
Total operating costs and expenses	5,076,255	4,838,842	9,596,312	8,997,436
Income from operations	296,345	460,006	567,341	1,009,201
Other income (expense):	'	'	'	'
Earnings (loss) of equity method investments	-908	-1,089	-1,709	-1,030
Interest income	1,184	778	2,589	2,309
Interest expense	-10,136	-19,794	-22,483	-41,114
Loss on early extinguishment of debt	0	-22,109	-7,677	-22,109
Other income (expense) total	-9,860	-42,214	-29,280	-61,944
Income before income taxes	286,485	417,792	538,061	947,257
Income tax provision:	'	'	'	'
Current	109,171	143,439	202,464	350,066
Deferred	-7,839	8,604	-13,518	-11,929
Income tax provision total	101,332	152,043	188,946	338,137
Net income	185,153	265,749	349,115	609,120
Less net income attributable to noncontrolling interest	8,724	8,768	20,625	18,470
Net income attributable to HollyFrontier stockholders	$176,429	$256,981	$328,490	$590,650
Earnings per share attributable to HollyFrontier stockholders:	'	'	'	'
Basic	$0.89	$1.27	$1.65	$2.91
Diluted	$0.89	$1.27	$1.65	$2.91
Cash dividends declared per common share	$0.82	$0.80	$1.62	$1.60
Average number of common shares outstanding:	'	'	'	'
Basic	198,139	201,543	198,217	202,131
Diluted	198,380	201,905	198,408	202,485

Consolidated_Statements_Of_Com

Consolidated Statements Of Comprehensive Income (Unaudited) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Net income	$185,153	$265,749	$349,115	$609,120
Other comprehensive income (loss)	'	'	'	'
Unrealized gain (loss) on marketable securities	25	-39	37	-26
Reclassification adjustments to net income on sale or maturity of marketable securities	0	-6	-1	-3
Net unrealized gain (loss) on marketable securities	25	-45	36	-29
Change in fair value of cash flow hedging instruments	46,689	27,661	138,724	17,315
Reclassification adjustments to net income on settlement of cash flow hedging instruments	-12,644	-6,073	-17,866	21,631
Amortization of unrealized loss attributable to discontinued cash flow hedges	270	270	540	1,209
Net unrealized gain on hedging instruments	34,315	21,858	121,398	40,155
Pension plan loss reclassified to net income	0	28,986	0	28,986
Loss on post-retirement healthcare plan	0	0	-89	0
Post-retirement healthcare plan loss reclassified to net income	0	0	0	1,726
Net change in post-retirement benefit obligation	0	28,986	-89	30,712
Other comprehensive income before income taxes	34,340	50,799	121,345	70,838
Income tax expense	13,417	18,986	47,122	26,474
Other comprehensive income	20,923	31,813	74,223	44,364
Total comprehensive income	206,076	297,562	423,338	653,484
Less noncontrolling interest in comprehensive income	8,271	10,708	20,230	21,202
Comprehensive income attributable to HollyFrontier stockholders	$197,805	$286,854	$403,108	$632,282

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (Unaudited) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:	'	'
Net income	$349,115	$609,120
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	181,938	142,254
Net loss of equity method investments, inclusive of distributions	3,082	2,593
Loss on early extinguishment of debt attributable to unamortized discount	1,489	7,948
Deferred income taxes	-13,518	-11,929
Equity based compensation expense	13,846	17,192
Change in fair value - derivative instruments	486	-57,192
(Increase) decrease in current assets:	'	'
Accounts receivable	-81,399	-122,875
Inventories	-150,585	-230,811
Income taxes receivable	90,501	12,526
Prepayments and other	3,171	10,040
Increase (decrease) in current liabilities:	'	'
Accounts payable	307,473	216,506
Accrued liabilities	20,865	-7,588
Turnaround expenditures	-9,708	-159,811
Other, net	4,723	23,542
Net cash provided by operating activities	721,479	451,515
Cash flows from investing activities:	'	'
Additions to properties, plants and equipment	-205,987	-153,942
Proceeds from sale of properties, plants, and equipment	0	5,802
Investment in Sabine Biofuels	-5,000	-2,000
Net repayment of advances to Sabine Biofuels	10,021	-13,700
Purchases of marketable securities	-498,080	-399,154
Sales and maturities of marketable securities	-543,604	-398,762
Net cash used for investing activities	-194,224	-181,093
Cash flows from financing activities:	'	'
Redemption of senior notes	0	-300,973
Proceeds from sale of HEP common units	0	73,444
Proceeds from common unit offerings - HEP	0	146,888
Inventory repurchase obligation	5,964	0
Purchase of treasury stock	-20,135	-159,432
Dividends	-323,088	-264,867
Excess tax benefit from equity based compensation	3,778	1,037
Deferred financing costs and other	-433	-2,184
Net cash used for financing activities	-349,056	-678,701
Cash and cash equivalents:	'	'
Increase for the period	178,199	-408,279
Beginning of period	940,103	1,757,699
End of period	1,118,302	1,349,420
Cash paid during the period for:	'	'
Interest	30,702	46,566
Income taxes	118,142	336,099
HEP [Member]	'	'
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	30,661	29,368
Cash flows from investing activities:	'	'
Additions to properties, plants and equipment	-38,782	-16,861
Cash flows from financing activities:	'	'
Borrowings under credit agreement - HEP	477,100	154,500
Repayments under credit agreement - HEP	-297,100	-220,500
Redemption of senior notes	-156,188	0
Proceeds from common unit offerings - HEP	'	73,444
Distributions to noncontrolling interest	-38,548	-34,604
Purchase of units for incentive grants - HEP	-406	-2,934
Cash and cash equivalents:	'	'
Beginning of period	6,352	'
End of period	$6,066	'

Description_of_Business_and_Pr

Description of Business and Presentation of Financial Statements	6 Months Ended
	Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Description Of Business And Presentation Of Financial Statements	'
	Description of Business and Presentation of Financial Statements
	References herein to HollyFrontier Corporation (“HollyFrontier”) include HollyFrontier and its consolidated subsidiaries. In accordance with the Securities and Exchange Commission’s (“SEC”) “Plain English” guidelines, this Quarterly Report on Form 10-Q has been written in the first person. In these financial statements, the words “we,” “our,” “ours” and “us” refer only to HollyFrontier and its consolidated subsidiaries or to HollyFrontier or an individual subsidiary and not to any other person, with certain exceptions. Generally, the words “we,” “our,” “ours” and “us” include Holly Energy Partners, L.P. (“HEP”) and its subsidiaries as consolidated subsidiaries of HollyFrontier, unless when used in disclosures of transactions or obligations between HEP and HollyFrontier or its other subsidiaries. These financial statements contain certain disclosures of agreements that are specific to HEP and its consolidated subsidiaries and do not necessarily represent obligations of HollyFrontier. When used in descriptions of agreements and transactions, “HEP” refers to HEP and its consolidated subsidiaries.
	We are principally an independent petroleum refiner that produces high-value light products such as gasoline, diesel fuel, jet fuel, specialty lubricant products, and specialty and modified asphalt. We own and operate petroleum refineries that serve markets throughout the Mid-Continent, Southwest and Rocky Mountain regions of the United States. As of June 30, 2014, we:
	•	owned and operated a petroleum refinery in El Dorado, Kansas (the “El Dorado Refinery”), two refinery facilities located in Tulsa, Oklahoma (collectively, the “Tulsa Refineries”), a refinery in Artesia, New Mexico that is operated in conjunction with crude oil distillation and vacuum distillation and other facilities situated 65 miles away in Lovington, New Mexico (collectively, the “Navajo Refinery”), a refinery located in Cheyenne, Wyoming (the “Cheyenne Refinery”) and a refinery in Woods Cross, Utah (the “Woods Cross Refinery”);
	•	owned and operated NK Asphalt Partners (“NK Asphalt”) which operates various asphalt terminals in Arizona, New Mexico and Oklahoma;
	•	owned a 50% interest in Sabine Biofuels II, LLC (“Sabine Biofuels”), a biodiesel production facility located in Port Arthur, Texas; and
	•	owned a 39% interest in HEP, a consolidated variable interest entity (“VIE”), which includes our 2% general partner interest. HEP owns and operates logistic assets consisting of petroleum product and crude oil pipelines and terminal, tankage and loading rack facilities that principally support our refining and marketing operations in the Mid-Continent, Southwest and Rocky Mountain regions of the United States and Alon USA, Inc.'s (“Alon”) refinery in Big Spring, Texas. Additionally, HEP owns a 75% interest in UNEV Pipeline, LLC (“UNEV”), which owns a 12-inch refined products pipeline from Salt Lake City, Utah to Las Vegas, Nevada, together with terminal facilities in the Cedar City, Utah and North Las Vegas areas (the “UNEV Pipeline”) and a 25% interest in SLC Pipeline LLC (the “SLC Pipeline”), which owns a 95-mile intrastate pipeline system that serves refineries in the Salt Lake City area.
	We have prepared these consolidated financial statements without audit. In management’s opinion, these consolidated financial statements include all normal recurring adjustments necessary for a fair presentation of our consolidated financial position as of June 30, 2014, the consolidated results of operations and comprehensive income for the three and six months ended June 30, 2014 and 2013 and consolidated cash flows for the six months ended June 30, 2014 and 2013 in accordance with the rules and regulations of the SEC. Although certain notes and other information required by generally accepted accounting principles in the United States (“GAAP”) have been condensed or omitted, we believe that the disclosures in these consolidated financial statements are adequate to make the information presented not misleading. These consolidated financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2013 that has been filed with the SEC.
	Our results of operations for the six months ended June 30, 2014 are not necessarily indicative of the results of operations to be realized for the year ending December 31, 2014.
	Accounts Receivable: Our accounts receivable consist of amounts due from customers that are primarily companies in the petroleum industry. Credit is extended based on our evaluation of the customer’s financial condition, and in certain circumstances collateral, such as letters of credit or guarantees, is required. We reserve for doubtful accounts based on our historical loss experience as well as specific accounts identified as high risk, which historically have been minimal. Credit losses are charged to the allowance for doubtful accounts when an account is deemed uncollectible. Our allowance for doubtful accounts was $2.4 million at June 30, 2014 and December 31, 2013.
	Inventories: We use the last-in, first-out (“LIFO”) method of valuing inventory. Under the LIFO method, an actual valuation of inventory can only be made at the end of each year based on the inventory levels at that time. Accordingly, interim LIFO calculations are based on management’s estimates of expected year-end inventory levels and are subject to the final year-end LIFO inventory valuation.
	Goodwill: Goodwill represents the excess of the cost of an acquired entity over the fair value of the assets acquired and liabilities assumed. Goodwill is not subject to amortization and is tested annually, or more frequently if events or circumstances indicate the possibility of impairment. As of June 30, 2014, there have been no impairments to goodwill.
	New Accounting Pronouncements
	Revenue Recognition
	In May 2014, an accounting standard update (ASU 2014-09, “Revenue from Contracts with Customers”) was issued requiring revenue to be recognized when promised goods or services are transferred to customers in an amount that reflects the expected consideration for these goods or services. This standard is effective January 1, 2017, and we are evaluating the impact of this standard.

Variable_Interest_Entities

Variable Interest Entities	6 Months Ended
	Jun. 30, 2014
Variable Interest Entities [Abstract]	'
Variable Interest Entities	'
	Variable Interest Entities
	Holly Energy Partners
	HEP, a consolidated VIE, is a publicly held master limited partnership that was formed to acquire, own and operate the petroleum product and crude oil pipeline and terminal, tankage and loading rack facilities that support our refining and marketing operations in the Mid-Continent, Southwest and Rocky Mountain regions of the United States. HEP also owns and operates refined product pipelines and terminals, located primarily in Texas, that serve Alon's refinery in Big Spring, Texas.
	As of June 30, 2014, we owned a 39% interest in HEP, including the 2% general partner interest. As the general partner of HEP, we have the sole ability to direct the activities that most significantly impact HEP's financial performance. We are the primary beneficiary of HEP's earnings and cash flows and therefore we consolidate HEP. See Note 16 for supplemental guarantor/non-guarantor financial information, including HEP balances included in these consolidated financial statements.
	HEP has two primary customers (including us) and generates revenues by charging tariffs for transporting petroleum products and crude oil though its pipelines, by charging fees for terminalling refined products and other hydrocarbons, and storing and providing other services at its storage tanks and terminals. Under our long-term transportation agreements with HEP (discussed further below), we accounted for 84% of HEP’s total revenues for the six months ended June 30, 2014. We do not provide financial or equity support through any liquidity arrangements and / or debt guarantees to HEP.
	HEP has outstanding debt under a senior secured revolving credit agreement and its senior notes. With the exception of the assets of HEP Logistics Holdings, L.P., one of our wholly-owned subsidiaries and HEP’s general partner, HEP’s creditors have no recourse to our other assets. Any recourse to HEP’s general partner would be limited to the extent of HEP Logistics Holdings, L.P.’s assets, which other than its investment in HEP are not significant. Furthermore, our creditors have no recourse to the assets of HEP and its consolidated subsidiaries. See Note 9 for a description of HEP’s debt obligations.
	HEP has risk associated with its operations. If a major customer of HEP were to terminate its contracts or fail to meet desired shipping or throughput levels for an extended period of time, revenue would be reduced and HEP could suffer substantial losses to the extent that a new customer is not found. In the event that HEP incurs a loss, our operating results will reflect HEP’s loss, net of intercompany eliminations, to the extent of our ownership interest in HEP at that point in time.
	Transportation Agreements
	HEP serves our refineries under long-term pipeline and terminal, tankage and throughput agreements expiring from 2019 through 2026. Under these agreements, we pay HEP fees to transport, store and throughput volumes of refined product and crude oil on HEP's pipeline and terminal, tankage and loading rack facilities that result in minimum annual payments to HEP including UNEV (a consolidated subsidiary of HEP). Under these agreements, the agreed upon tariff rates are subject to annual tariff rate adjustments on July 1 at a rate based upon the percentage change in Producer Price Index (“PPI”) or Federal Energy Regulatory Commission (“FERC”) index. As of July 1, 2014, these agreements result in minimum annualized payments to HEP of $228.7 million.
	Our transactions with HEP including fees paid under our transportation agreements with HEP and UNEV are eliminated and have no impact on our consolidated financial statements.
	HEP Common Unit Offering
	In March 2013, HEP closed on a public offering of 1,875,000 of its common units. Additionally, our wholly-owned subsidiary, HollyFrontier Holdings LLC, as a selling unitholder, closed on a public sale of 1,875,000 HEP common units held by it. HEP used net proceeds of $73.4 million to repay indebtedness incurred under its credit facility and for general partnership purposes.
	Sabine Biofuels
	We have a 50% ownership interest in Sabine Biofuels, an unconsolidated VIE. This investment, accounted for using the equity method of accounting, had a carrying amount of $10.6 million at June 30, 2014 and is classified as a noncurrent asset under “Intangibles and other” in our consolidated balance sheets.

Financial_Instruments

Financial Instruments	6 Months Ended
	Jun. 30, 2014
Financial Instruments, Owned, at Fair Value [Abstract]	'
Financial Instruments	'
	Financial Instruments
	Our financial instruments consist of cash and cash equivalents, investments in marketable securities, accounts receivable, accounts payable, debt and derivative instruments. The carrying amounts of cash and cash equivalents, accounts receivable and accounts payable approximate fair value. HEP's outstanding credit agreement borrowings also approximate fair value as interest rates are reset frequently at current interest rates.
	Fair value measurements are derived using inputs (assumptions that market participants would use in pricing an asset or liability, including assumptions about risk). GAAP categorizes inputs used in fair value measurements into three broad levels as follows:
	•	(Level 1) Quoted prices in active markets for identical assets or liabilities.
	•	(Level 2) Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets, similar assets and liabilities in markets that are not active or can be corroborated by observable market data.
	•	(Level 3) Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes valuation techniques that involve significant unobservable inputs.
	The carrying amounts and estimated fair values of our investments in marketable securities, derivative instruments and senior notes at June 30, 2014 and December 31, 2013 were as follows:
									Fair Value by Input Level
	Financial Instrument		Carrying Amount			Fair Value			Level 1			Level 2			Level 3
			(In thousands)
	June 30, 2014
	Assets:
	Marketable securities		$	679,668		$	679,668		$	—		$	679,668		$	—
	Commodity price swaps		184,250			184,250			—			177,627			6,623
	HEP interest rate swaps		834			834			—			834			—
	Total assets		$	864,752		$	864,752		$	—		$	858,129		$	6,623
	Liabilities:
	NYMEX futures contracts		$	3,337		$	3,337		$	3,337		$	—		$	—
	Commodity price swaps		104,135			104,135			—			22,071			82,064
	Forward sales contracts		196			196			—			—			196
	HollyFrontier senior notes		154,606			159,187			—			159,187			—
	HEP senior notes		296,253			320,250			—			320,250			—
	HEP interest rate swaps		1,629			1,629			—			1,629			—
	Total liabilities		$	560,156		$	588,734		$	3,337		$	503,137		$	82,260
									Fair Value by Input Level
	Financial Instrument		Carrying Amount			Fair Value			Level 1			Level 2			Level 3
			(In thousands)
	December 31, 2013
	Assets:
	Marketable securities		$	725,160		$	725,160		$	—		$	725,160		$	—
	Commodity price swaps		43,284			43,284			—			36,312			6,972
	HEP interest rate swaps		1,670			1,670			—			1,670			—
	Total assets		$	770,114		$	770,114		$	—		$	763,142		$	6,972
	Liabilities:
	NYMEX futures contracts		$	3,569		$	3,569		$	3,569		$	—		$	—
	Commodity price swaps		83,349			83,349			—			41,059			42,290
	HollyFrontier senior notes		155,054			161,250			—			161,250			—
	HEP senior notes		444,630			471,750			—			471,750			—
	HEP interest rate swaps		1,814			1,814			—			1,814			—
	Total liabilities		$	688,416		$	721,732		$	3,569		$	675,873		$	42,290
	Level 1 Financial Instruments
	Our NYMEX futures contracts are exchange traded and are measured and recorded at fair value using quoted market prices, a Level 1 input.
	Level 2 Financial Instruments
	Investments in marketable securities and derivative instruments consisting of commodity price swaps and HEP's interest rate swaps are measured and recorded at fair value using Level 2 inputs. The fair values of the commodity price and interest rate swap contracts are based on the net present value of expected future cash flows related to both variable and fixed rate legs of the respective swap agreements. The measurements are computed using market-based observable inputs, quoted forward commodity prices with respect to our commodity price swaps and the forward London Interbank Offered Rate (“LIBOR”) yield curve with respect to HEP's interest rate swaps. The fair value of the marketable securities and senior notes is based on values provided by a third-party, which were derived using market quotes for similar type instruments, a Level 2 input.
	Level 3 Financial Instruments
	We have commodity price swap contracts that relate to forecasted sales of diesel and unleaded gasoline and forecasted purchases of WCS for which quoted forward market prices are not readily available. The forward rate used to value these price swaps is derived using a projected forward rate using quoted market rates for similar products, adjusted for regional pricing and grade differentials, a Level 3 input.
	The following table presents the changes in fair value of our Level 3 assets and liabilities (all related to derivative instruments) for the three and six months ended June 30, 2014 and 2013:
			Three Months Ended June 30,						Six Months Ended June 30,
	Level 3 Financial Instruments		2014			2013			2014			2013
			(In thousands)
	Liability balance at beginning of period		$	(22,473	)	$	(6,249	)	$	(35,318	)	$	(33,658	)
	Change in fair value:
	Recognized in other comprehensive income		(90,559		)	50,615			(112,695		)	1,413
	Recognized in cost of products sold		(7,084		)	3,662			1,885			47,222
	Settlement date fair value of contractual maturities:
	Recognized in sales and other revenues		48,942			(3,868		)	74,273			15,316
	Recognized in cost of products sold		(4,463		)	(7,034		)	(3,782		)	6,833
	Asset (liability) balance at end of period		$	(75,637	)	$	37,126		$	(75,637	)	$	37,126
	A hypothetical change of 10% to the estimated future cash flows attributable to our Level 3 commodity price swaps would result in an estimated fair value change of $7.5 million.

Earnings_Per_Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Earnings Per Share
	Basic earnings per share is calculated as net income attributable to HollyFrontier stockholders divided by the average number of shares of common stock outstanding. Diluted earnings per share assumes, when dilutive, the issuance of the net incremental shares from restricted shares and performance share units. The following is a reconciliation of the components of the basic and diluted per share computations for net income attributable to HollyFrontier stockholders:
		Three Months Ended June 30,				Six Months Ended June 30,
		2014		2013		2014		2013
		(In thousands, except per share data)
	Net income attributable to HollyFrontier stockholders	$	176,429	$	256,981	$	328,490	$	590,650
	Participating securities' share in earnings	475		917		945		2,201
	Net income attributable to common shares	$	175,954	$	256,064	$	327,545	$	588,449
	Average number of shares of common stock outstanding	198,139		201,543		198,217		202,131
	Effect of dilutive variable restricted shares and performance share units (1)	241		362		191		354
	Average number of shares of common stock outstanding assuming dilution	198,380		201,905		198,408		202,485
	Basic earnings per share	$	0.89	$	1.27	$	1.65	$	2.91
	Diluted earnings per share	$	0.89	$	1.27	$	1.65	$	2.91
	(1) Excludes anti-dilutive restricted and performance share units of:	26		232		2		248

StockBased_Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2014
Share-based Compensation [Abstract]	'
Stock-Based Compensation	'
	Stock-Based Compensation
	As of June 30, 2014, we have two principal share-based compensation plans (collectively, the “Long-Term Incentive Compensation Plan”).
	The compensation cost charged against income for these plans was $6.8 million and $7.9 million for the three months ended June 30, 2014 and 2013, respectively, and $12.2 million and $15.3 million for the six months ended June 30, 2014 and 2013, respectively. Our accounting policy for the recognition of compensation expense for awards with pro-rata vesting is to expense the costs ratably over the vesting periods.
	Additionally, HEP maintains a share-based compensation plan for Holly Logistic Services, L.L.C.'s non-employee directors and certain executives and employees. Compensation cost attributable to HEP’s share-based compensation plan was $0.8 million and $0.8 million for the three months ended June 30, 2014 and 2013, respectively, and $1.7 million and $1.9 million for the six months ended June 30, 2014 and 2013, respectively.
	Restricted Stock and Restricted Stock Units
	Under our Long-Term Incentive Compensation Plan, we grant certain officers and other key employees restricted stock and restricted stock unit awards with awards generally vesting over a period of one to three years. Restricted stock award recipients are generally entitled to all the rights of absolute ownership of the restricted shares from the date of grant including the right to vote the shares and to receive dividends. Upon vesting, restrictions on the restricted shares lapse at which time they convert to common shares. In addition, we grant non-employee directors restricted stock unit awards, which typically vest over a period of one year and are payable in stock. The fair value of each restricted stock and restricted stock unit award is measured based on the grant date market price of our common shares and is amortized over the respective vesting period.
	A summary of restricted stock and restricted stock unit activity and changes during the six months ended June 30, 2014 is presented below:
	Restricted Stock and Restricted Stock Units	Grants		Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value ($000)
	Outstanding at January 1, 2014 (non-vested)	737,562		$	39.54
	Granted	70,243		48.22
	Vesting (transfer/conversion to common stock)	(103,586	)	33.71
	Forfeited	(72,697	)	42.24
	Outstanding at June 30, 2014 (non-vested)	631,522		$	41.15	$	27,591
	For the six months ended June 30, 2014, 103,586 restricted stock and restricted stock units vested having a grant date fair value of $3.5 million. As of June 30, 2014, there was $13.1 million of total unrecognized compensation cost related to non-vested restricted stock and restricted stock unit grants. That cost is expected to be recognized over a weighted-average period of 1.2 years.
	Performance Share Units
	Under our Long-Term Incentive Compensation Plan, we grant certain officers and other key employees performance share units, which are payable in stock upon meeting certain criteria over the service period, and generally vest over a period of three years. Under the terms of our performance share unit grants, awards are subject to both a “financial performance” and “market performance” criteria. Financial performance is based on our financial performance compared to an equally-weighted peer group of independent refining companies, while market performance is based on total shareholder return achieved by HollyFrontier stockholders compared with the average shareholder return achieved by shareholders of peer group companies. The number of shares ultimately issued under these awards can range from zero to 200%. As of June 30, 2014, estimated share payouts for outstanding non-vested performance share unit awards averaged approximately 100% of the initial target award.
	A summary of performance share unit activity and changes during the six months ended June 30, 2014 is presented below:
	Performance Share Units	Grants
	Outstanding at January 1, 2014 (non-vested)	983,610
	Granted	26,493
	Vesting and transfer of ownership to recipients	(181,290	)
	Forfeited	(108,182	)
	Outstanding at June 30, 2014 (non-vested)	720,631
	For the six months ended June 30, 2014, we issued 172,231 shares of our common stock, representing a 95% payout on vested performance shares units having a grant date fair value of $5.9 million. Based on the weighted-average grant date fair value of $40.55 per share, there was $19.5 million of total unrecognized compensation cost related to non-vested performance share units as of June 30, 2014. That cost is expected to be recognized over a weighted-average period of 1.5 years.

Cash_and_Cash_Equivalents_and_

Cash and Cash Equivalents and Investments in Marketable Securities	6 Months Ended
	Jun. 30, 2014
Cash And Cash Equivalents And Investments In Marketable Securities [Abstract]	'
Cash And Cash Equivalents And Investments In Marketable Securities	'
	Cash and Cash Equivalents and Investments in Marketable Securities
	Our investment portfolio at June 30, 2014 consisted of cash, cash equivalents and investments in marketable securities.
	We currently invest in marketable debt securities with the maximum maturity or put date of any individual issue generally not greater than one year from the date of purchase, which are usually held until maturity. All of these instruments are classified as available-for-sale. As a result, they are reported at fair value using quoted market prices. Interest income is recorded as earned. Unrealized gains and losses, net of related income taxes, are reported as a component of accumulated other comprehensive income. Upon sale or maturity, realized gains on our marketable debt securities are recognized as interest income. These gains are computed based on the specific identification of the underlying cost of the securities, net of unrealized gains and losses previously reported in other comprehensive income. Unrealized gains and losses on our available-for-sale securities are due to changes in market prices and are considered temporary.
	The following is a summary of our marketable securities:
		Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value
									(Net Carrying Amount)
		(In thousands)
	June 30, 2014
	Certificates of deposit	$	79,704	$	15	$	(3	)	$	79,716
	Commercial paper	76,670		16		—			76,686
	Corporate debt securities	146,455		34		(18		)	146,471
	State and political subdivisions debt securities	376,789		29		(23		)	376,795
	Total marketable securities	$	679,618	$	94	$	(44	)	$	679,668
	December 31, 2013
	Certificates of deposit	$	74,802	$	21	$	(1	)	$	74,822
	Commercial paper	78,216		28		—			78,244
	Corporate debt securities	96,889		6		(44		)	96,851
	State and political subdivisions debt securities	475,235		49		(41		)	475,243
	Total marketable securities	$	725,142	$	104	$	(86	)	$	725,160
	Interest income recognized on our marketable securities was $0.6 million and $0.6 million for the three months ended June 30, 2014 and 2013, respectively, and $1.2 million and $1.1 million for the six months ended June 30, 2014 and 2013, respectively.

Inventories

Inventories	6 Months Ended
	Jun. 30, 2014
Inventory, Net [Abstract]	'
Inventories	'
	Inventories
	Inventory consists of the following components:
			June 30,		December 31, 2013
			2014
			(In thousands)
	Crude oil		$	628,215	$	567,281
	Other raw materials and unfinished products(1)		186,892		154,534
	Finished products(2)		609,453		519,633
	Process chemicals(3)		4,470		3,504
	Repair and maintenance supplies and other		75,802		109,295
	Total inventory		$	1,504,832	$	1,354,247
	-1	Other raw materials and unfinished products include feedstocks and blendstocks, other than crude.
	-2	Finished products include gasolines, jet fuels, diesels, lubricants, asphalts, LPG’s and residual fuels.
	-3	Process chemicals include additives and other chemicals.

Environmental

Environmental	6 Months Ended
	Jun. 30, 2014
Environmental Expense and Liabilities [Abstract]	'
Environmental	'
	Environmental
	We expensed $1.0 million and $0.6 million for the three months ended June 30, 2014 and 2013, respectively, and $1.3 million and $0.8 million, for the six months ended June 30, 2014 and 2013, respectively, for environmental remediation obligations. The accrued environmental liability reflected in our consolidated balance sheets was $84.5 million and $87.8 million at June 30, 2014 and December 31, 2013, respectively, of which $69.5 million and $73.6 million, respectively, were classified as other long-term liabilities. These accruals include remediation and monitoring costs expected to be incurred over an extended period of time (up to 30 years for certain projects).

Debt

Debt	6 Months Ended
	Jun. 30, 2014
Debt [Abstract]	'
Debt	'
	Debt
	HollyFrontier Credit Agreement
	At June 30, 2014, we were in compliance with all covenants, had no outstanding borrowings and had outstanding letters of credit totaling $4.5 million under our $1 billion senior secured revolving credit agreement maturing in July 2016. On July 1, 2014, we terminated this credit agreement and contemporaneously entered into a new $1 billion senior unsecured revolving credit facility maturing July 1, 2019 (the “HollyFrontier Credit Agreement”), which may be used for revolving credit loans (including up to $100 million of swingline loans) and letters of credit from time to time. The HollyFrontier Credit Agreement is available to fund general corporate purposes. Indebtedness under the HollyFrontier Credit Agreement is recourse to HollyFrontier and guaranteed by certain of our wholly-owned subsidiaries.
	HEP Credit Agreement
	HEP has a $650 million senior secured revolving credit facility that matures in November 2018 (the “HEP Credit Agreement”) and is available to fund capital expenditures, investments, acquisitions, distribution payments and working capital and for general partnership purposes. It is also available to fund letters of credit up to a $50 million sub-limit. At June 30, 2014, HEP was in compliance with all of its covenants, had outstanding borrowings of $543.0 million and no outstanding letters of credit under the HEP Credit Agreement.
	HEP’s obligations under the HEP Credit Agreement are collateralized by substantially all of HEP’s assets (presented parenthetically in our consolidated balance sheets). Indebtedness under the HEP Credit Agreement involves recourse to HEP Logistics Holdings, L.P., its general partner, and is guaranteed by HEP’s wholly-owned subsidiaries. Any recourse to the general partner would be limited to the extent of HEP Logistics Holdings, L.P.’s assets, which other than its investment in HEP are not significant. HEP’s creditors have no recourse to our other assets. Furthermore, our creditors have no recourse to the assets of HEP and its consolidated subsidiaries.
	HollyFrontier Senior Notes
	Our 6.875% senior notes ($150 million aggregate principal amount maturing November 2018) (the “HollyFrontier Senior Notes”) are unsecured and impose certain restrictive covenants, including limitations on our ability to incur additional debt, incur liens, enter into sale-and-leaseback transactions, pay dividends, enter into mergers, sell assets and enter into certain transactions with affiliates. Additionally, we have certain redemption rights under the HollyFrontier Senior Notes.
	At any time, following notice to the trustee, that the HollyFrontier Senior Notes are rated investment grade by both Moody's and Standard & Poor's and no default or event of default exists, we are not subject to many of the foregoing covenants (a "Covenant Suspension"). As of June 30, 2014, the HollyFrontier Senior Notes were rated investment grade by both Standard & Poor's (BBB-) and Moody's (Baa3). As a result, we are under the Covenant Suspension pursuant to the terms of the indenture governing the HollyFrontier Senior Notes.
	In June 2013, we redeemed our $286.8 million aggregate principal amount of 9.875% senior notes maturing June 2017 at a redemption cost of $301.0 million, at which time we recognized a $22.1 million early extinguishment loss consisting of a $14.2 million debt redemption premium and an unamortized discount of $7.9 million.
	HollyFrontier Financing Obligation
	We have a financing obligation that relates to a sale and lease-back of certain crude oil tankage that we sold to an affiliate of Plains All American Pipeline, L.P. (“Plains”) in October 2009 for $40.0 million. Monthly lease payments are recorded as a reduction in principal over the 15-year lease term ending in 2024.
	HEP Senior Notes
	HEP’s 6.5% senior notes ($300 million aggregate principal amount maturing March 2020) (the “HEP Senior Notes”) are unsecured and impose certain restrictive covenants, including limitations on HEP’s ability to incur additional indebtedness, make investments, sell assets, incur certain liens, pay distributions, enter into transactions with affiliates, and enter into mergers. At any time when the HEP Senior Notes are rated investment grade by both Moody’s and Standard & Poor’s and no default or event of default exists, HEP will not be subject to many of the foregoing covenants. Additionally, HEP has certain redemption rights under the HEP Senior Notes.
	In March 2014, HEP redeemed its $150.0 million aggregate principal amount of 8.25% senior notes maturing March 2018 at a redemption cost of $156.2 million, at which time HEP recognized a $7.7 million early extinguishment loss consisting of a $6.2 million debt redemption premium and unamortized discount and financing costs of $1.5 million. HEP funded the redemption with borrowings under the HEP Credit Agreement.
	Indebtedness under the HEP Senior Notes involves recourse to HEP Logistics Holdings, L.P., its general partner, and is guaranteed by HEP’s wholly-owned subsidiaries. However, any recourse to the general partner would be limited to the extent of HEP Logistics Holdings, L.P.’s assets, which other than its investment in HEP, are not significant. HEP’s creditors have no recourse to our other assets. Furthermore, our creditors have no recourse to the assets of HEP and its consolidated subsidiaries.
	The carrying amounts of long-term debt are as follows:
		June 30,			December 31,
		2014			2013
		(In thousands)
	6.875% Senior Notes
	Principal	$	150,000		$	150,000
	Unamortized premium	4,606			5,054
		154,606			155,054
	Financing Obligation	34,026			34,835
	Total HollyFrontier long-term debt	188,632			189,889
	HEP Credit Agreement	543,000			363,000
	HEP 6.5% Senior Notes
	Principal	300,000			300,000
	Unamortized discount	(3,747		)	(4,073		)
		296,253			295,927
	HEP 8.25% Senior Notes
	Principal	—			150,000
	Unamortized discount	—			(1,297		)
		—			148,703
	Total HEP long-term debt	839,253			807,630
	Total long-term debt	$	1,027,885		$	997,519
	We capitalized interest attributable to construction projects of $3.1 million and $3.0 million for the three months ended June 30, 2014 and 2013, respectively, and $6.0 million and $6.4 million for the six months ended June 30, 2014 and 2013, respectively.

Derivative_Instruments_And_Hed

Derivative Instruments And Hedging Activities	6 Months Ended
	Jun. 30, 2014
Derivative Instruments And Hedging Activities [Abstract]	'
Derivative Instruments And Hedging Activities	'
	Derivative Instruments and Hedging Activities
	Commodity Price Risk Management
	Our primary market risk is commodity price risk. We are exposed to market risks related to the volatility in crude oil and refined products, as well as volatility in the price of natural gas used in our refining operations. We periodically enter into derivative contracts in the form of commodity price swaps and futures contracts to mitigate price exposure with respect to:
	•	our inventory positions;
	•	natural gas purchases;
	•	costs of crude oil and related grade differentials;
	•	prices of refined products; and
	•	our refining margins.
	Accounting Hedges
	We have swap contracts serving as cash flow hedges against price risk on forecasted purchases of natural gas and WTI crude oil and forecasted sales of ultra-low sulfur diesel and conventional unleaded gasoline. We also have forward sales contracts that lock in the prices of future sales of refined product. These contracts have been designated as accounting hedges and are measured at fair value with offsetting adjustments (gains/losses) recorded directly to other comprehensive income. These fair value adjustments are later reclassified to earnings as the hedging instruments mature. On a quarterly basis, hedge ineffectiveness is measured by comparing the change in fair value of the swap contracts against the expected future cash inflows/outflows on the respective transaction being hedged. Any hedge ineffectiveness is also recognized in earnings.
	The following table presents the pre-tax effect on other comprehensive income (“OCI”) and earnings due to fair value adjustments and maturities of commodity price swaps under hedge accounting:
		Unrealized Gain (Loss) Recognized in OCI				Gain (Loss) Recognized in Earnings Due to Settlements						Gain (Loss) Attributable to Hedge Ineffectiveness Recognized in Earnings
						Location		Amount				Location		Amount
		(In thousands)
	Three Months Ended June 30, 2014
	Commodity price swaps
	Change in fair value	$	47,988			Sales and other revenues		$	(48,942	)
	Gain reclassified to earnings due to settlements	(13,197		)		Cost of products sold		61,124
	Amortization of discontinued hedges reclassified to earnings	270				Operating expenses		745				Operating expenses		$	1,354
	Total	$	35,061					$	12,927					$	1,354
	Three Months Ended June 30, 2013
	Commodity price swaps
	Change in fair value	$	24,764			Sales and other revenues		$	3,868			Sales and other revenues		$	550
	Gain reclassified to earnings due to settlements	(6,589		)		Cost of products sold		1,930				Cost of products sold		(1,439		)
	Amortization of discontinued hedges reclassified to earnings	270				Operating expenses		521				Operating expenses		106
	Total	$	18,445					$	6,319					$	(783	)
	Six Months Ended June 30, 2014
	Commodity price swaps
	Change in fair value	$	140,466			Sales and other revenues		$	(74,273	)
	Gain reclassified to earnings due to settlements	(18,957		)		Cost of products sold		90,441
	Amortization of discontinued hedge reclassified to earnings	540				Operating expenses		2,249				Operating expenses		$	(806	)
	Total	$	122,049					$	18,417					$	(806	)
	Six Months Ended June 30, 2013
	Commodity price swaps
	Change in fair value	$	14,360			Sales and other revenues		$	(15,316	)		Sales and other revenues		$	194
	Loss reclassified to earnings due to settlements	20,611				Cost of products sold		(4,603		)		Cost of products sold		1,692
	Amortization of discontinued hedge reclassified to earnings	360				Operating expenses		(1,052		)		Operating expenses		(259		)
	Total	$	35,331					$	(20,971	)				$	1,627
	As of June 30, 2014, we have the following notional contract volumes related to outstanding derivative instruments serving as cash flow hedges against price risk on forecasted purchases of natural gas and crude oil and sales of refined products:
						Notional Contract Volumes by Year of Maturity
	Derivative Instrument		Total Outstanding Notional			2014			2015			2016			2017			Unit of Measure
	Natural gas - long		33,600,000			4,800,000			9,600,000			9,600,000			9,600,000			MMBTU
	WTI crude oil - long		18,456,000			14,076,000			4,380,000			—			—			Barrels
	Ultra-low sulfur diesel - short		11,832,000			7,452,000			4,380,000			—			—			Barrels
	Sub octane gasoline - short		6,624,000			6,624,000			—			—			—			Barrels
	Forward sales - diesel and gasoline		100,000			100,000			—			—			—			Barrels
	In 2013, we dedesignated certain commodity price swaps (long positions) that previously received hedge accounting treatment. These contracts now serve as economic hedges against price risk on forecasted natural gas purchases totaling 33,600,000 MMBTU's to be purchased ratably through 2017. As of June 30, 2014, we have an unrealized loss of $3.8 million classified in accumulated other comprehensive income that relates to the application of hedge accounting prior to dedesignation that is amortized as a charge to operating expenses as the contracts mature.
	Economic Hedges
	We also have swap contracts that serve as economic hedges (derivatives used for risk management, but not designated as accounting hedges) to fix our purchase price on forecasted natural gas purchases, and to lock in the spread between WCS and WTI crude oil on forecasted purchases of WCS. Also, we have NYMEX futures contracts to lock in prices on forecasted purchases of inventory. These contracts are measured at fair value with offsetting adjustments (gains/losses) recorded directly to income.
	The following table presents the pre-tax effect on income due to maturities and fair value adjustments of our economic hedges:
			Three Months Ended June 30,								Six Months Ended June 30,
	Location of Gain (Loss) Recognized in Income		2014				2013				2014				2013
			(In thousands)
	Cost of products sold		$	(24,432	)		$	1,839			$	(24,406	)		$	35,431
	Operating expenses		(140		)		(308		)		(188		)		(5,301		)
	Total		$	(24,572	)		$	1,531			$	(24,594	)		$	30,130
	As of June 30, 2014, we have the following notional contract volumes related to our outstanding derivative contracts serving as economic hedges:
					Notional Contract Volumes by Year of Maturity
	Derivative Instrument	Total Outstanding Notional			2014			2015			2016			2017			Unit of Measure
	Commodity price swap (WCS spread) - long	3,220,000			3,220,000			—			—			—			Barrels
	Commodity price swap (natural gas) - long	33,600,000			4,800,000			9,600,000			9,600,000			9,600,000			MMBTU
	Commodity price swap (natural gas) - short	33,600,000			4,800,000			9,600,000			9,600,000			9,600,000			MMBTU
	NYMEX futures (WTI) - short	2,935,000			2,935,000			—			—			—			Barrels
Interest Rate Risk Management
HEP uses interest rate swaps to manage its exposure to interest rate risk.
As of June 30, 2014, HEP had three interest rate swap contracts that hedge its exposure to the cash flow risk caused by the effects of LIBOR changes on $305.0 million in credit agreement advances. The first interest rate swap effectively converts $155.0 million of LIBOR based debt to fixed-rate debt having an interest rate of 0.99% plus an applicable margin of 2.00% as of June 30, 2014, which equaled an effective interest rate of 2.99%. This swap matures in February 2016. HEP has two additional interest rate swaps with identical terms which effectively convert $150.0 million of LIBOR based debt to fixed rate debt having an interest rate of 0.74% plus an applicable margin of 2.00% as of June 30, 2014, which equaled an effective interest rate of 2.74%. Both of these swap contracts mature in July 2017. All of these swap contracts have been designated as cash flow hedges. To date, there has been no ineffectiveness on these cash flow hedges.
The following table presents the pre-tax effect on other comprehensive income and earnings due to fair value adjustments and maturities of HEP's interest rate swaps under hedge accounting:
	Unrealized Gain (Loss) Recognized in OCI				Loss Recognized in Earnings Due to Settlements
					Location		Amount
	(In thousands)
Three Months Ended June 30, 2014
Interest rate swaps
Change in fair value	$	(1,299	)
Loss reclassified to earnings due to settlements	553				Interest expense		$	(553	)
Total	$	(746	)				$	(553	)
Three Months Ended June 30, 2013
Interest rate swaps
Change in fair value	$	2,897
Loss reclassified to earnings due to settlements	516				Interest expense		$	(516	)
Total	$	3,413					$	(516	)
Six Months Ended June 30, 2014
Interest rate swaps
Change in fair value	$	(1,742	)
Loss reclassified to earnings due to settlements	1,091				Interest expense		$	(1,091	)
Total	$	(651	)				$	(1,091	)
Six Months Ended June 30, 2013
Interest rate swaps
Change in fair value	$	2,955
Loss reclassified to earnings due to settlements	1,020
Amortization of discontinued hedge reclassified to earnings	849				Interest expense		$	(1,869	)
Total	$	4,824					$	(1,869	)
The following table presents the fair value and balance sheet locations of our outstanding derivative instruments. These amounts are presented on a gross basis with offsetting balances that reconcile to a net asset or liability position in our consolidated balance sheets. We present on a net basis to reflect the net settlement of these positions in accordance with provisions of our master netting arrangements.
		Derivatives in Net Asset Position												Derivatives in Net Liability Position
		Gross Assets				Gross Liabilities Offset in Balance Sheet				Net Assets Recognized in Balance Sheet				Gross Liabilities				Gross Assets Offset in Balance Sheet			Net Liabilities Recognized in Balance Sheet
						(In thousands)
June 30, 2014
Derivatives designated as cash flow hedging instruments:
Commodity price swap contracts		$	156,904			$	(72,770	)		$	84,134			$	19,565			$	(16,448	)	$	3,117
Forward sales contracts		—				(196		)		(196		)		—				—			—
Interest rate swap contracts		834				—				834				1,629				—			1,629
		$	157,738			$	(72,966	)		$	84,772			$	21,194			$	(16,448	)	$	4,746
Derivatives not designated as cash flow hedging instruments:
Commodity price swap contracts		$	5,961			$	(2,709	)		$	3,252			$	9,091			$	(4,937	)	$	4,154
NYMEX futures contracts		—				—				—				3,337				—			3,337
		$	5,961			$	(2,709	)		$	3,252			$	12,428			$	(4,937	)	$	7,491
Total net balance										$	88,024										$	12,237
Balance sheet classification:		Prepayment and other								$	85,660			Accrued liabilities							$	3,337
		Intangibles and other								2,364				Other long-term liabilities							8,900
										$	88,024										$	12,237
		Derivatives in Net Asset Position												Derivatives in Net Liability Position
		Gross Assets				Gross Liabilities Offset in Balance Sheet				Net Assets Recognized in Balance Sheet				Gross Liabilities				Gross Assets Offset in Balance Sheet			Net Liabilities Recognized in Balance Sheet
						(In thousands)
December 31, 2013
Derivatives designated as cash flow hedging instruments:
Commodity price swap contracts		$	—			$	—			$	—			$	63,561			$	(23,679	)	$	39,882
Interest rate swap contracts		1,670				—				1,670				1,814				—			1,814
		$	1,670			$	—			$	1,670			$	65,375			$	(23,679	)	$	41,696
Derivatives not designated as cash flow hedging instruments:
Commodity price swap contracts		$	6,972			$	—			$	6,972			$	19,766			$	(12,611	)	$	7,155
NYMEX futures contracts		—				—				—				3,569				—			3,569
		$	6,972			$	—			$	6,972			$	23,335			$	(12,611	)	$	10,724
Total net balance										$	8,642										$	52,420
Balance sheet classification:		Prepayment and other								$	6,972			Accrued liabilities							$	26,843
		Intangibles and other								1,670				Other long-term liabilities							25,577
										$	8,642										$	52,420
At June 30, 2014, we had a pre-tax net unrealized gain of $77.5 million classified in accumulated other comprehensive income that relates to all accounting hedges having contractual maturities through 2017. Assuming commodity prices and interest rates remain unchanged, an unrealized gain of $81.9 million will be effectively transferred from accumulated other comprehensive income into the statement of income as the hedging instruments contractually mature over the next twelve-month period.

Equity

Equity	6 Months Ended
	Jun. 30, 2014
Stockholders' Equity Note [Abstract]	'
Equity	'
	Equity
	Changes to equity during the six months ended June 30, 2014 are presented below:
			HollyFrontier			Noncontrolling			Total
			Stockholders’			Interest			Equity
			Equity
			(In thousands)
	Balance at December 31, 2013		$	5,999,620		$	609,778		$	6,609,398
	Net income		328,490			20,625			349,115
	Dividends		(323,121		)	—			(323,121		)
	Distributions to noncontrolling interest holders		—			(38,548		)	(38,548		)
	Other comprehensive income, net of tax		74,618			(395		)	74,223
	Equity-based compensation		12,188			1,658			13,846
	Excess tax benefit attributable to equity-based compensation		3,778			—			3,778
	Purchase of treasury stock (1)		(22,041		)	—			(22,041		)
	Purchase of HEP units for restricted grants		—			(406		)	(406		)
	Other		—			375			375
	Balance at June 30, 2014		$	6,073,532		$	593,087		$	6,666,619
	-1	Includes 92,048 shares withheld under the terms of stock-based compensation agreements to provide funds for the payment of payroll and income taxes due at the vesting of share-based awards.
	We have a Board-approved repurchase program that authorizes us to repurchase common stock in the open market or through privately negotiated transactions. The timing and amount of stock repurchases will depend on market conditions, corporate, regulatory and other relevant considerations. This program may be discontinued at any time by the Board of Directors. As of June 30, 2014, we had remaining authorization to repurchase up to $311.6 million under this stock repurchase program. In addition, we are authorized by our Board of Directors to repurchase shares in an amount sufficient to offset shares issued under our compensation programs.

Other_Comprehensive_Income_Los

Other Comprehensive Income (Loss)	6 Months Ended
	Jun. 30, 2014
Other Comprehensive Income (Loss) [Abstract]	'
Other Comprehensive Income (Loss)	'
	Other Comprehensive Income (Loss)
	The components and allocated tax effects of other comprehensive income (loss) are as follows:
		Before-Tax			Tax Expense			After-Tax
					(Benefit)
		(In thousands)
	Three Months Ended June 30, 2014
	Net unrealized gain on marketable securities	$	25		$	17		$	8
	Net unrealized gain on hedging instruments	34,315			13,400			20,915
	Other comprehensive income	34,340			13,417			20,923
	Less other comprehensive loss attributable to noncontrolling interest	(453		)	—			(453		)
	Other comprehensive income attributable to HollyFrontier stockholders	$	34,793		$	13,417		$	21,376
	Three Months Ended June 30, 2013
	Net unrealized loss on marketable securities	$	(45	)	$	(36	)	$	(9	)
	Net unrealized gain on hedging instruments	21,858			7,747			14,111
	Net change in pension and other post-retirement benefit obligations	28,986			11,275			17,711
	Other comprehensive income	50,799			18,986			31,813
	Less other comprehensive income attributable to noncontrolling interest	1,940			—			1,940
	Other comprehensive income attributable to HollyFrontier stockholders	$	48,859		$	18,986		$	29,873
	Six Months Ended June 30, 2014
	Net unrealized gain on marketable securities	$	36		$	14		$	22
	Net unrealized gain on hedging instruments	121,398			47,143			74,255
	Net change in post-retirement benefit obligations	(89		)	(35		)	(54		)
	Other comprehensive income	121,345			47,122			74,223
	Less other comprehensive loss attributable to noncontrolling interest	(395		)	—			(395		)
	Other comprehensive income attributable to HollyFrontier stockholders	$	121,740		$	47,122		$	74,618
	Six Months Ended June 30, 2013
	Net unrealized loss on marketable securities	$	(29	)	$	(28	)	$	(1	)
	Net unrealized gain on hedging instruments	40,155			14,556			25,599
	Net change in pension and other post-retirement benefit obligations	30,712			11,946			18,766
	Other comprehensive income	70,838			26,474			44,364
	Less other comprehensive income attributable to noncontrolling interest	2,733			—			2,733
	Other comprehensive income attributable to HollyFrontier stockholders	$	68,105		$	26,474		$	41,631
	The following table presents the income statement line item effects for reclassifications out of accumulated other comprehensive income (“AOCI”):
	AOCI Component	Gain (Loss) Reclassified From AOCI						Income Statement Line Item
		(In thousands)
		Three Months Ended June 30,
		2014			2013
	Marketable securities	$	—		$	6		Interest income
		—			2			Income tax expense
		—			4			Net of tax
	Hedging instruments:
	Commodity price swaps	(48,942		)	3,868			Sales and other revenues
		61,124			1,930			Cost of products sold
		745			521			Operating expenses
	Interest rate swaps	(553		)	(516		)	Interest expense
		12,374			5,803
		4,918			2,379			Income tax expense
		7,456			3,424			Net of tax
		335			313			Noncontrolling interest
		7,791			3,737			Net of tax and noncontrolling interest
	Pension obligation	—			(2,460		)	Cost of products sold
		—			(23,260		)	Operating expenses
		—			(3,266		)	General and administrative expenses
		—			(28,986		)
		—			(11,275		)	Income tax benefit
		—			(17,711		)	Net of tax
	Total reclassifications for the period	$	7,791		$	(13,970	)
		Six Months Ended June 30,
		2014			2013
	Marketable securities	$	1		$	3		Interest income
		—			1			Income tax expense
		1			2			Net of tax
	Hedging instruments:
Commodity price swaps	(74,273		)	(15,316		)	Sales and other revenues
	90,441			(4,603		)	Cost of products sold
	2,249			(1,052		)	Operating expenses
Interest rate swaps	(1,091		)	(1,869		)	Interest expense
	17,326			(22,840		)
	6,961			(8,444		)	Income tax expense (benefit)
	10,365			(14,396		)	Net of tax
	661			1,133			Noncontrolling interest
	11,026			(13,263		)	Net of tax and noncontrolling interest
Pension and other post-retirement benefit obligations:
Pension obligation	—			(2,460		)	Cost of products sold
	—			(23,260		)	Operating expenses
	—			(3,266		)	General and administrative expenses
	—			(28,986		)
	—			(11,275		)	Income tax benefit
	—			(17,711		)	Net of tax
Post-retirement healthcare obligation	—			(84		)	Cost of products sold
	—			(1,549		)	Operating expenses
	—			(93		)	General and administrative expenses
	—			(1,726		)
	—			(671		)	Income tax benefit
	—			(1,055		)	Net of tax
Total reclassifications for the period	$	11,027		$	(32,027	)
Accumulated other comprehensive income (loss) in the equity section of our consolidated balance sheets includes:
	June 30,			December 31,
	2014			2013
	(In thousands)
Unrealized gain on post-retirement benefit obligations	$	27,637		$	27,691
Unrealized gain on marketable securities	32			10
Unrealized gain (loss) on hedging instruments, net of noncontrolling interest	47,771			(26,879		)
Accumulated other comprehensive income	$	75,440		$	822

Retirement_Plan

Retirement Plan	6 Months Ended
	Jun. 30, 2014
Pension and Other Postretirement Benefit Expense [Abstract]	'
Retirement Plan	'
	Post-retirement Plans
	We have a post-retirement healthcare and other benefits plan that is available to certain of our employees who satisfy certain age and service requirements. The net periodic benefit expense of this plan consisted of the following components:
		Three Months Ended June 30,						Six Months Ended June 30,
		2014			2013			2014			2013
		(In thousands)
	Service cost – benefit earned during the period	$	224		$	278		$	448		$	556
	Interest cost on projected benefit obligations	160			159			319			318
	Amortization of prior service credit	(1,074		)	(1,474		)	(2,148		)	(2,948		)
	Amortization of net loss	—			31			—			62
	Loss on settlement	—			—			—			1,726
	Net periodic post-retirement credit	$	(690	)	$	(1,006	)	$	(1,381	)	$	(286	)
	In 2012, our Compensation Committee, pursuant to authority delegated to it by the Board of Directors, approved the termination of the HollyFrontier Corporation Pension Plan (the “Plan”), a non-contributory defined benefit retirement plan that covered certain employees and was fully frozen effective May 1, 2012. In the second quarter of 2013, the Plan was liquidated and we recognized a pre-tax pension settlement charge of $30.9 million, of which $29.0 million was reclassified out of accumulated other comprehensive income, representing the irrevocable portion of our obligation.
	Additionally, we have a program that provides certain transition benefit payments to certain employees that participated in the defined benefit plan that was terminated. The program extends through 2014 and provides payments after year-end provided the employee is employed by us on the last day of each year. The payments are based on each employee's years of service and eligible salary. Transition benefit costs under this program were $2.9 million and $2.9 million for the three months ended June 30, 2014 and 2013, respectively, and $5.5 million and $5.8 million for the six months ended June 30, 2014 and 2013, respectively.

Contingencies

Contingencies	6 Months Ended
	Jun. 30, 2014
Contingencies [Abstract]	'
Contingencies	'
	Contingencies
	We are a party to various litigation and legal proceedings which we believe, based on advice of counsel, will not either individually or in the aggregate have a material adverse effect on our financial condition, results of operations or cash flows.

Segment_Information

Segment Information	6 Months Ended
	Jun. 30, 2014
Segment Information [Abstract]	'
Segment Information	'
	Segment Information
	Our operations are organized into two reportable segments, Refining and HEP. Our operations that are not included in the Refining and HEP segments are included in Corporate and Other. Intersegment transactions are eliminated in our consolidated financial statements and are included in Consolidations and Eliminations.
	The Refining segment represents the operations of the El Dorado, Tulsa, Navajo, Cheyenne and Woods Cross Refineries and NK Asphalt (aggregated as a reportable segment). Refining activities involve the purchase and refining of crude oil and wholesale and branded marketing of refined products, such as gasoline, diesel fuel and jet fuel. These petroleum products are primarily marketed in the Mid-Continent, Southwest and Rocky Mountain regions of the United States. Additionally, the Refining segment includes specialty lubricant products produced at our Tulsa Refineries that are marketed throughout North America and are distributed in Central and South America. NK Asphalt operates various asphalt terminals in Arizona, New Mexico and Oklahoma.
	The HEP segment includes all of the operations of HEP, a consolidated VIE, which owns and operates logistics assets consisting of petroleum product and crude oil pipelines and terminal, tankage and loading rack facilities in the Mid-Continent, Southwest and Rocky Mountain regions of the United States. The HEP segment also includes a 75% interest in UNEV (a consolidated subsidiary of HEP) and a 25% interest in the SLC Pipeline. Revenues from the HEP segment are earned through transactions with unaffiliated parties for pipeline transportation, rental and terminalling operations as well as revenues relating to pipeline transportation services provided for our refining operations. Due to certain basis differences, our reported amounts for the HEP segment may not agree to amounts reported in HEP’s periodic public filings.
	The accounting policies for our segments are the same as those described in the summary of significant accounting policies in our Annual Report on Form 10-K for the year ended December 31, 2013.
		Refining		HEP		Corporate			Consolidations			Consolidated
						and Other			and Eliminations			Total
		(In thousands)
	Three Months Ended June 30, 2014
	Sales and other revenues	$	5,361,914	$	75,024	$	506		$	(64,844	)	$	5,372,600
	Depreciation and amortization	$	83,840	$	15,477	$	2,280		$	(207	)	$	101,390
	Income (loss) from operations	$	292,214	$	32,464	$	(27,802	)	$	(531	)	$	296,345
	Capital expenditures	$	92,334	$	18,178	$	9,976		$	—		$	120,488
	Three Months Ended June 30, 2013
	Sales and other revenues	$	5,286,881	$	75,121	$	234		$	(63,388	)	$	5,298,848
	Depreciation and amortization	$	53,443	$	15,619	$	1,637		$	(207	)	$	70,492
	Income (loss) from operations	$	458,777	$	34,392	$	(32,646	)	$	(517	)	$	460,006
	Capital expenditures	$	74,866	$	11,848	$	12,125		$	—		$	98,839
	Six Months Ended June 30, 2014
	Sales and other revenues	$	10,136,994	$	162,036	$	1,621		$	(136,998	)	$	10,163,653
	Depreciation and amortization	$	147,381	$	30,661	$	4,310		$	(414	)	$	181,938
	Income (loss) from operations	$	543,423	$	78,329	$	(53,357	)	$	(1,054	)	$	567,341
	Capital expenditures	$	192,277	$	38,782	$	13,710		$	—		$	244,769
	Six Months Ended June 30, 2013
	Sales and other revenues	$	9,979,307	$	151,605	$	797		$	(125,072	)	$	10,006,637
	Depreciation and amortization	$	110,613	$	29,368	$	2,687		$	(414	)	$	142,254
	Income (loss) from operations	$	1,000,979	$	67,866	$	(58,618	)	$	(1,026	)	$	1,009,201
	Capital expenditures	$	138,498	$	16,861	$	15,444		$	—		$	170,803
		Refining		HEP		Corporate and Other			Consolidations and Eliminations			Consolidated Total
		(In thousands)
	June 30, 2014
	Cash, cash equivalents and total investments in marketable securities	$	3,794	$	6,066	$	1,788,110		$	—		$	1,797,970
	Total assets	$	7,442,830	$	1,416,952	$	1,905,000		$	(306,399	)	$	10,458,383
	Long-term debt	$	—	$	839,253	$	188,632		$	—		$	1,027,885
	December 31, 2013
	Cash, cash equivalents and total investments in marketable securities	$	1,860	$	6,352	$	1,657,051		$	—		$	1,665,263
	Total assets	$	7,094,558	$	1,413,908	$	1,881,119		$	(332,846	)	$	10,056,739
	Long-term debt	$	—	$	807,630	$	189,889		$	—		$	997,519
	HEP segment revenues from external customers were $10.5 million and $12.1 million for the three months ended June 30, 2014 and 2013, respectively, and $25.7 million and $24.9 million for the six months ended June 30, 2014 and 2013, respectively.

Supplemental_GuarantorNonGuara

Supplemental Guarantor/Non-Guarantor Financial Information	6 Months Ended
	Jun. 30, 2014
Supplemental Guarantor / Non-Guarantor Financial Information [Abstract]	'
Supplemental Guarantor/Non-Guarantor Financial Information	'
	Supplemental Guarantor/Non-Guarantor Financial Information
	Our obligations under the HollyFrontier Senior Notes have been jointly and severally guaranteed by the substantial majority of our existing and future restricted subsidiaries (“Guarantor Restricted Subsidiaries”). These guarantees are full and unconditional. HEP, in which we have a 39% ownership interest at June 30, 2014, and its subsidiaries (collectively, “Non-Guarantor Non-Restricted Subsidiaries”), and certain of our other subsidiaries (“Non-Guarantor Restricted Subsidiaries”) have not guaranteed these obligations.
	The following condensed consolidating financial information is provided for HollyFrontier Corporation (the “Parent”), the Guarantor Restricted Subsidiaries, the Non-Guarantor Restricted Subsidiaries and the Non-Guarantor Non-Restricted Subsidiaries. The information has been presented as if the Parent accounted for its ownership in the Guarantor Restricted Subsidiaries, and the Guarantor Restricted Subsidiaries accounted for the ownership of the Non-Guarantor Restricted Subsidiaries and Non-Guarantor Non-Restricted Subsidiaries, using the equity method of accounting. The Guarantor Restricted Subsidiaries and the Non-Guarantor Restricted Subsidiaries are collectively the “Restricted Subsidiaries.”
	We have made certain revisions to our prior year condensed statements of cash flows to reclassify intercompany lending and distribution activity between operating, investing and financing activities.
	Condensed Consolidating Balance Sheet
	June 30, 2014	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
					Restricted			Guarantor						Corp. Before			Non-Restricted
					Subsidiaries			Restricted						Consolidation			Subsidiaries
								Subsidiaries						of HEP			(HEP Segment)
		(In thousands)
	ASSETS
	Current assets:
	Cash and cash equivalents	$	1,108,232		$	3,777		$	227		$	—		$	1,112,236		$	6,066		$	—		$	1,118,302
	Marketable securities	679,668			—			—			—			679,668			—			—			679,668
	Accounts receivable, net	6,070			768,504			3,087			—			777,661			34,359			(31,840		)	780,180
	Intercompany accounts receivable	—			726,278			359,183			(1,085,461		)	—			—			—			—
	Inventories	—			1,503,250			—			—			1,503,250			1,582			—			1,504,832
	Income taxes receivable	18,875			—			—			—			18,875			—			—			18,875
	Prepayments and other	16,345			122,130			—			—			138,475			2,164			(6,365		)	134,274
	Total current assets	1,829,190			3,123,939			362,497			(1,085,461		)	4,230,165			44,171			(38,205		)	4,236,131
	Properties, plants and equip, net	32,537			2,714,741			551			—			2,747,829			1,011,961			(267,047		)	3,492,743
	Marketable securities (long-term)	—			—			—			—			—			—			—			—
	Investment in subsidiaries	6,410,993			250,981			—			(6,661,974		)	—			—			—			—
	Intangibles and other assets	24,535			2,345,299			25,000			(25,000		)	2,369,834			360,820			(1,145		)	2,729,509
	Total assets	$	8,297,255		$	8,434,960		$	388,048		$	(7,772,435	)	$	9,347,828		$	1,416,952		$	(306,397	)	$	10,458,383
	LIABILITIES AND EQUITY
	Current liabilities:
	Accounts payable	$	14,406		$	1,624,681		$	—		$	—		$	1,639,087		$	17,706		$	(31,840	)	$	1,624,953
	Intercompany accounts payable	1,085,461			—			—			(1,085,461		)	—			—			—			—
	Accrued liabilities	43,581			60,441			1,577			—			105,599			26,527			(6,365		)	125,761
	Deferred income tax liabilities	216,981			—			—			—			216,981			—			—			216,981
	Total current liabilities	1,360,429			1,685,122			1,577			(1,085,461		)	1,961,667			44,233			(38,205		)	1,967,695
	Long-term debt	179,606			34,026			—			(25,000		)	188,632			839,253			—			1,027,885
	Liability to HEP	—			239,387			—			—			239,387			—			(239,387		)	—
	Deferred income tax liabilities	652,153			—			—			—			652,153			5,312			—			657,465
	Other long-term liabilities	36,993			65,432			—			—			102,425			38,585			(2,291		)	138,719
	Investment in HEP	—			—			135,490			—			135,490			—			(135,490		)	—
	Equity – HollyFrontier	6,068,074			6,410,993			250,981			(6,661,974		)	6,068,074			392,304			(386,846		)	6,073,532
	Equity – noncontrolling interest	—			—			—			—			—			97,265			495,822			593,087
	Total liabilities and equity	$	8,297,255		$	8,434,960		$	388,048		$	(7,772,435	)	$	9,347,828		$	1,416,952		$	(306,397	)	$	10,458,383
	Condensed Consolidating Balance Sheet
	December 31, 2013	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
					Restricted			Guarantor						Corp. Before			Non-Restricted
					Subsidiaries			Restricted						Consolidation			Subsidiaries
								Subsidiaries						of HEP			(HEP Segment)
		(In thousands)
	ASSETS
	Current assets:
	Cash and cash equivalents	$	931,920		$	1,817		$	14		$	—		$	933,751		$	6,352		$	—		$	940,103
	Marketable securities	725,160			—			—			—			725,160			—			—			725,160
	Accounts receivable, net	6,095			698,109			8,075			—			712,279			34,736			(38,213		)	708,802
	Intercompany accounts receivable	—			149,907			313,623			(463,530		)	—			—			—			—
	Inventories	—			1,352,656			—			—			1,352,656			1,591			—			1,354,247
	Income taxes receivable	109,376			—			—			—			109,376			—			—			109,376
	Prepayments and other	21,843			45,413			—			—			67,256			2,283			(10,783		)	58,756
	Total current assets	1,794,394			2,247,902			321,712			(463,530		)	3,900,478			44,962			(48,996		)	3,896,444
	Properties, plants and equip, net	30,007			2,633,739			24			—			2,663,770			1,004,975			(274,149		)	3,394,596
	Investment in subsidiaries	5,722,025			216,687			—			(5,938,712		)	—			—			—			—
	Intangibles and other assets	23,034			2,380,268			25,000			(25,000		)	2,403,302			363,970			(1,573		)	2,765,699
	Total assets	$	7,569,460		$	7,478,596		$	346,736		$	(6,427,242	)	$	8,967,550		$	1,413,907		$	(324,718	)	$	10,056,739
	LIABILITIES AND EQUITY
	Current liabilities:
	Accounts payable	$	16,704		$	1,323,603		$	383		$	—		$	1,340,690		$	22,898		$	(38,212	)	$	1,325,376
Intercompany accounts payable	463,530			—			—			(463,530		)	—			—			—			—
Accrued liabilities	43,254			63,181			795			—			107,230			28,668			(10,783		)	125,115
Deferred income tax liabilities	223,999			—			—			—			223,999			—			—			223,999
Total current liabilities	747,487			1,386,784			1,178			(463,530		)	1,671,919			51,566			(48,995		)	1,674,490
Long-term debt	180,054			34,835			—			(25,000		)	189,889			807,630			—			997,519
Liability to HEP	—			245,536			—			—			245,536			—			(245,536		)	—
Deferred income tax liabilities	611,555			—			—			—			611,555			5,287			—			616,842
Other long-term liabilities	35,874			89,416			—			—			125,290			35,918			(2,718		)	158,490
Investment in HEP	—			—			128,871			—			128,871			—			(128,871		)	—
Equity – HollyFrontier	5,994,490			5,722,025			216,687			(5,938,712		)	5,994,490			416,018			(410,888		)	5,999,620
Equity – noncontrolling interest	—			—			—			—			—			97,488			512,290			609,778
Total liabilities and equity	$	7,569,460		$	7,478,596		$	346,736		$	(6,427,242	)	$	8,967,550		$	1,413,907		$	(324,718	)	$	10,056,739
Condensed Consolidating Statement of Income and Comprehensive Income
Three Months Ended June 30, 2014	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
				Restricted			Guarantor						Corp. Before			Non-Restricted
				Subsidiaries			Restricted						Consolidation			Subsidiaries
							Subsidiaries						of HEP			(HEP Segment)
	(In thousands)
Sales and other revenues	$	179		$	5,362,277		$	(36	)	$	—		$	5,362,420		$	75,024		$	(64,844	)	$	5,372,600
Operating costs and expenses:
Cost of products sold	—			4,738,586			—			—			4,738,586			—			(63,740		)	4,674,846
Operating expenses	—			247,451			—			—			247,451			24,567			(364		)	271,654
General and administrative	24,343			1,469			37			—			25,849			2,516			—			28,365
Depreciation and amortization	2,010			87,473			—			—			89,483			15,477			(3,570		)	101,390
Total operating costs and expenses	26,353			5,074,979			37			—			5,101,369			42,560			(67,674		)	5,076,255
Income (loss) from operations	(26,174		)	287,298			(73		)	—			261,051			32,464			2,830			296,345
Other income (expense):
Earnings (loss) of equity method investments	303,788			14,546			16,132			(319,990		)	14,476			748			(16,132		)	(908		)
Interest income (expense)	(373		)	1,944			143			—			1,714			(8,329		)	(2,337		)	(8,952		)
	303,415			16,490			16,275			(319,990		)	16,190			(7,581		)	(18,469		)	(9,860		)
Income before income taxes	277,241			303,788			16,202			(319,990		)	277,241			24,883			(15,639		)	286,485
Income tax provision	101,304			—			—			—			101,304			28			—			101,332
Net income	175,937			303,788			16,202			(319,990		)	175,937			24,855			(15,639		)	185,153
Less net income attributable to noncontrolling interest	—			—			—			—			—			1,416			7,308			8,724
Net income attributable to HollyFrontier stockholders	$	175,937		$	303,788		$	16,202		$	(319,990	)	$	175,937		$	23,439		$	(22,947	)	$	176,429
Comprehensive income attributable to HollyFrontier stockholders	$	197,313		$	338,556		$	15,909		$	(354,465	)	$	197,313		$	23,145		$	(22,653	)	$	197,805
Condensed Consolidating Statement of Income and Comprehensive Income
Three Months Ended June 30, 2013	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
				Restricted			Guarantor						Corp. Before			Non-Restricted
				Subsidiaries			Restricted						Consolidation			Subsidiaries
							Subsidiaries						of HEP			(HEP Segment)
	(In thousands)
Sales and other revenues	$	100		$	5,286,984		$	31		$	—		$	5,287,115		$	75,121		$	(63,388	)	$	5,298,848
Operating costs and expenses:
Cost of products sold	—			4,518,737			92			282			4,519,111			—			(62,303		)	4,456,808
Operating expenses	—			255,874			19			—			255,893			22,010			(361		)	277,542
General and administrative	30,242			630			28			—			30,900			3,100			—			34,000
Depreciation and amortization	1,400			57,043			—			—			58,443			15,619			(3,570		)	70,492
Total operating costs and expenses	31,642			4,832,284			139			282			4,864,347			40,729			(66,234		)	4,838,842
Income (loss) from operations	(31,542		)	454,700			(108		)	(282		)	422,768			34,392			2,846			460,006
Other income (expense):
Earnings (loss) of equity method investments	469,228			12,592			14,401			(483,655		)	12,566			746			(14,401		)	(1,089		)
Interest income (expense)	(7,456		)	1,936			134			294			(5,092		)	(11,624		)	(2,300		)	(19,016		)
Loss on early extinguishment of debt	(22,109		)	—			—			—			(22,109		)	—			—			(22,109		)
	439,663			14,528			14,535			(483,361		)	(14,635		)	(10,878		)	(16,701		)	(42,214		)
Income before income taxes	408,121			469,228			14,427			(483,643		)	408,133			23,514			(13,855		)	417,792
Income tax provision	151,698			—			—			—			151,698			345			—			152,043
Net income	256,423			469,228			14,427			(483,643		)	256,435			23,169			(13,855		)	265,749
Less net income attributable to noncontrolling interest	—			—			—			—			—			1,130			7,638			8,768
Net income attributable to HollyFrontier stockholders	$	256,423		$	469,228		$	14,427		$	(483,643	)	$	256,435		$	22,039		$	(21,493	)	$	256,981
Comprehensive income attributable to HollyFrontier stockholders	$	286,296		$	489,146		$	15,900		$	(505,034	)	$	286,308		$	23,512		$	(22,966	)	$	286,854
Condensed Consolidating Statement of Income and Comprehensive Income
Six Months Ended June 30, 2014	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
				Restricted			Guarantor						Corp. Before			Non-Restricted
				Subsidiaries			Restricted						Consolidation			Subsidiaries
							Subsidiaries						of HEP			(HEP Segment)
	(In thousands)
Sales and other revenues	$	280		$	10,137,400		$	935		$	—		$	10,138,615		$	162,036		$	(136,998	)	$	10,163,653
Operating costs and expenses:
Cost of products sold	—			8,948,308			—			—			8,948,308			—			(134,842		)	8,813,466
Operating expenses	—			498,927			—			—			498,927			47,379			(686		)	545,620
General and administrative	45,450			4,095			76			—			49,621			5,667			—			55,288
Depreciation and amortization	3,800			154,580			—			—			158,380			30,661			(7,103		)	181,938
Total operating costs and expenses	49,250			9,605,910			76			—			9,655,236			83,707			(142,631		)	9,596,312
Income (loss) from operations	(48,970		)	531,490			859			—			483,379			78,329			5,633			567,341
Other income (expense):
Earnings (loss) of equity method investments	566,147			30,568			32,415			(599,694		)	29,436			1,270			(32,415		)	(1,709		)
Interest income (expense)	(797		)	4,089			273			—			3,565			(18,780		)	(4,679		)	(19,894		)
Loss on early extinguishment of debt	—			—			—			—			—			(7,677		)	—			(7,677		)
	565,350			34,657			32,688			(599,694		)	33,001			(25,187		)	(37,094		)	(29,280		)
Income before income taxes	516,380			566,147			33,547			(599,694		)	516,380			53,142			(31,461		)	538,061
Income tax provision	188,843			—			—			—			188,843			103			—			188,946
Net income	327,537			566,147			33,547			(599,694		)	327,537			53,039			(31,461		)	349,115
Less net income attributable to noncontrolling interest	—			—			—			—			—			5,053			15,572			20,625
Net income attributable to HollyFrontier stockholders	$	327,537		$	566,147		$	33,547		$	(599,694	)	$	327,537		$	47,986		$	(47,033	)	$	328,490
Comprehensive income attributable to HollyFrontier stockholders	$	402,155		$	687,940		$	33,291		$	(721,231	)	$	402,155		$	47,730		$	(46,777	)	$	403,108
Condensed Consolidating Statement of Income and Comprehensive Income
Six Months Ended June 30, 2013	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
				Restricted			Guarantor						Corp. Before			Non-Restricted
				Subsidiaries			Restricted						Consolidation			Subsidiaries
							Subsidiaries						of HEP			(HEP Segment)
	(In thousands)
Sales and other revenues	$	631		$	9,979,410		$	63		$	—		$	9,980,104		$	151,605		$	(125,072	)	$	10,006,637
Operating costs and expenses:
Cost of products sold	—			8,371,865			—			415			8,372,280			—			(122,937		)	8,249,343
Operating expenses	—			495,297			—			—			495,297			48,039			(695		)	542,641
General and administrative	54,373			2,405			88			—			56,866			6,332			—			63,198
Depreciation and amortization	2,326			117,663			—			—			119,989			29,368			(7,103		)	142,254
Total operating costs and expenses	56,699			8,987,230			88			415			9,044,432			83,739			(130,735		)	8,997,436
Income (loss) from operations	(56,068		)	992,180			(25		)	(415		)	935,672			67,866			5,663			1,009,201
Other income (expense):
Earnings (loss)of equity method investments	1,020,119			24,206			26,393			(1,046,758		)	23,960			1,403			(26,393		)	(1,030		)
Interest income (expense)	(14,677		)	3,733			271			446			(10,227		)	(24,006		)	(4,572		)	(38,805		)
Loss on early extinguishment of debt	(22,109		)	—			—			—			(22,109		)	—			—			(22,109		)
	983,333			27,939			26,664			(1,046,312		)	(8,376		)	(22,603		)	(30,965		)	(61,944		)
Income before income taxes	927,265			1,020,119			26,639			(1,046,727		)	927,296			45,263			(25,302		)	947,257
Income tax provision	337,737			—			—			—			337,737			400			—			338,137
Net income	589,528			1,020,119			26,639			(1,046,727		)	589,559			44,863			(25,302		)	609,120
Less net income attributable to noncontrolling interest	—			—			—			—			—			4,020			14,450			18,470
Net income attributable to HollyFrontier stockholders	$	589,528		$	1,020,119		$	26,639		$	(1,046,727	)	$	589,559		$	40,843		$	(39,752	)	$	590,650
Comprehensive income attributable to HollyFrontier stockholders	$	631,160		$	1,057,542		$	28,731		$	(1,086,242	)	$	631,191		$	42,935		$	(41,844	)	$	632,282
Condensed Consolidating Statement of Cash Flows
Six Months Ended June 30, 2014	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
				Restricted			Guarantor						Corp. Before			Non-Restricted
				Subsidiaries			Restricted						Consolidation			Subsidiaries
							Subsidiaries						of HEP			(HEP Segment)
	(In thousands)
Cash flows from operating activities	$	(144,972	)	$	773,845		$	38,968		$	—		$	667,841		$	92,667		$	(39,029	)	$	721,479
Cash flows from investing activities
Additions to properties, plants and equipment	(6,329		)	(199,132		)	(526		)	—			(205,987		)	—			—			(205,987		)
Additions to properties, plants and equipment – HEP	—			—			—			—			—			(38,782		)	—			(38,782		)
Investment in Sabine Biofuels	—			(5,000		)	—			—			(5,000		)	—			—			(5,000		)
Repayment of advances to Sabine Biofuels	—			10,021			—			—			10,021			—			—			10,021
Purchases of marketable securities	(498,080		)	—			—			—			(498,080		)	—			—			(498,080		)
Sales and maturities of marketable securities	543,604			—			—			—			543,604			—			—			543,604
Net advances to Parent	—			(582,930		)	(38,604		)	621,534			—			—			—			—
	39,195			(777,041		)	(39,130		)	621,534			(155,442		)	(38,782		)	—			(194,224		)
Cash flows from financing activities
Net borrowings under credit agreement – HEP	—			—			—			—			—			180,000			—			180,000
Redemption of senior notes - HEP	—			—			—			—			—			(156,188		)	—			(156,188		)
Inventory repurchase obligation	—			5,964			—			—			5,964			—			—			5,964
Purchase of treasury stock	(20,135		)	—			—			—			(20,135		)	—			—			(20,135		)
Dividends	(323,088		)	—			—			—			(323,088		)	—			—			(323,088		)
Distributions to noncontrolling interest	—			—			—			—			—			(77,577		)	39,029			(38,548		)
Excess tax benefit from equity-based compensation	3,778			—			—			—			3,778			—			—			3,778
Purchase of units for incentive grants - HEP	—			—			—			—			—			(406		)	—			(406		)
Deferred financing costs and other	—			(808		)	375			—			(433		)	—			—			(433		)
Net advances from subsidiaries	621,534			—			—			(621,534		)	—			—			—			—
	282,089			5,156			375			(621,534		)	(333,914		)	(54,171		)	39,029			(349,056		)
Cash and cash equivalents
Increase (decrease) for the period	176,312			1,960			213			—			178,485			(286		)	—			178,199
Beginning of period	931,920			1,817			14			—			933,751			6,352			—			940,103
End of period	$	1,108,232		$	3,777		$	227		$	—		$	1,112,236		$	6,066		$	—		$	1,118,302
Condensed Consolidating Statement of Cash Flows
Six Months Ended June 30, 2013	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
				Restricted			Guarantor						Corp. Before			Non-Restricted
				Subsidiaries			Restricted						Consolidation			Subsidiaries
							Subsidiaries						of HEP			(HEP Segment)
	(In thousands)
Cash flows from operating activities	$	(374,074	)	$	758,289		$	20,573		$	—		$	404,788		$	81,542		$	(34,815	)	$	451,515
Cash flows from investing activities:
Additions to properties, plants and equipment	(5,025		)	(148,917		)	—			—			(153,942		)	—			—			(153,942		)
Additions to properties, plants and equipment – HEP	—			—			—			—			—			(16,861		)	—			(16,861		)
Proceeds from sale of property	—			3,321			—			—			3,321			2,481			—			5,802
Investment in Sabine Biofuels	—			(2,000		)	—			—			(2,000		)	—			—			(2,000		)
Advances to Sabine biofuels	—			(13,700		)	—			—			(13,700		)	—			—			(13,700		)
Purchases of marketable securities	(399,154		)	—			—			—			(399,154		)	—			—			(399,154		)
Sales and maturities of marketable securities	398,762			—			—			—			398,762			—			—			398,762
Net advances to Parent	—			(596,004		)	(19,074		)	615,078			—			—			—			—
	(5,417		)	(757,300		)	(19,074		)	615,078			(166,713		)	(14,380		)	—			(181,093		)
Cash flows from financing activities:
Net repayments under credit agreement – HEP	—			—			—			—			—			(66,000		)	—			(66,000		)
Redemption of senior notes	(300,973		)	—			—			—			(300,973		)	—			—			(300,973		)
Proceeds from common unit offerings - HEP	73,444			—			—			—			73,444			73,444			—			146,888
Purchase of treasury stock	(159,432		)	—			—			—			(159,432		)	—			—			(159,432		)
Contribution from general partner	—			—			(1,499		)	—			(1,499		)	1,499			—			—
Dividends	(264,867		)	—			—			—			(264,867		)	—			—			(264,867		)
Distributions to noncontrolling interest	—			—			—			—			—			(69,419		)	34,815			(34,604		)
Excess tax benefit from equity-based compensation	1,037			—			—			—			1,037			—			—			1,037
Purchase of units for incentive grants - HEP	—			—			—			—			—			(2,934		)	—			(2,934		)
Deferred financing costs and other	—			2,457			—			—			2,457			(273		)	—			2,184
Net advances from subsidiaries	615,078			—			—			(615,078		)	—			—			—			—
	(35,713		)	2,457			(1,499		)	(615,078		)	(649,833		)	(63,683		)	34,815			(678,701		)
Cash and cash equivalents
Increase (decrease) for the period:	(415,204		)	3,446			—			—			(411,758		)	3,479			—			(408,279		)
Beginning of period	1,748,808			3,652			2			—			1,752,462			5,237			—			1,757,699
End of period	$	1,333,604		$	7,098		$	2		$	—		$	1,340,704		$	8,716		$	—		$	1,349,420

Description_of_Business_and_Pr1

Description of Business and Presentation of Financial Statements (Policy)	6 Months Ended
	Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Accounts Receivable	'
	Accounts Receivable: Our accounts receivable consist of amounts due from customers that are primarily companies in the petroleum industry. Credit is extended based on our evaluation of the customer’s financial condition, and in certain circumstances collateral, such as letters of credit or guarantees, is required. We reserve for doubtful accounts based on our historical loss experience as well as specific accounts identified as high risk, which historically have been minimal. Credit losses are charged to the allowance for doubtful accounts when an account is deemed uncollectible. Our allowance for doubtful accounts was $2.4 million at June 30, 2014 and December 31, 2013.
Inventories	'
	Inventories: We use the last-in, first-out (“LIFO”) method of valuing inventory. Under the LIFO method, an actual valuation of inventory can only be made at the end of each year based on the inventory levels at that time. Accordingly, interim LIFO calculations are based on management’s estimates of expected year-end inventory levels and are subject to the final year-end LIFO inventory valuation.
Goodwill	'
	Goodwill: Goodwill represents the excess of the cost of an acquired entity over the fair value of the assets acquired and liabilities assumed. Goodwill is not subject to amortization and is tested annually, or more frequently if events or circumstances indicate the possibility of impairment. As of June 30, 2014, there have been no impairments to goodwill.

Financial_Instruments_Tables

Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2014
Financial Instruments, Owned, at Fair Value [Abstract]	'
Estimated Fair Values Of Debt Instruments	'
	The carrying amounts and estimated fair values of our investments in marketable securities, derivative instruments and senior notes at June 30, 2014 and December 31, 2013 were as follows:
								Fair Value by Input Level
	Financial Instrument	Carrying Amount			Fair Value			Level 1			Level 2			Level 3
		(In thousands)
	June 30, 2014
	Assets:
	Marketable securities	$	679,668		$	679,668		$	—		$	679,668		$	—
	Commodity price swaps	184,250			184,250			—			177,627			6,623
	HEP interest rate swaps	834			834			—			834			—
	Total assets	$	864,752		$	864,752		$	—		$	858,129		$	6,623
	Liabilities:
	NYMEX futures contracts	$	3,337		$	3,337		$	3,337		$	—		$	—
	Commodity price swaps	104,135			104,135			—			22,071			82,064
	Forward sales contracts	196			196			—			—			196
	HollyFrontier senior notes	154,606			159,187			—			159,187			—
	HEP senior notes	296,253			320,250			—			320,250			—
	HEP interest rate swaps	1,629			1,629			—			1,629			—
	Total liabilities	$	560,156		$	588,734		$	3,337		$	503,137		$	82,260
								Fair Value by Input Level
	Financial Instrument	Carrying Amount			Fair Value			Level 1			Level 2			Level 3
		(In thousands)
	December 31, 2013
	Assets:
	Marketable securities	$	725,160		$	725,160		$	—		$	725,160		$	—
	Commodity price swaps	43,284			43,284			—			36,312			6,972
	HEP interest rate swaps	1,670			1,670			—			1,670			—
	Total assets	$	770,114		$	770,114		$	—		$	763,142		$	6,972
	Liabilities:
	NYMEX futures contracts	$	3,569		$	3,569		$	3,569		$	—		$	—
	Commodity price swaps	83,349			83,349			—			41,059			42,290
	HollyFrontier senior notes	155,054			161,250			—			161,250			—
	HEP senior notes	444,630			471,750			—			471,750			—
	HEP interest rate swaps	1,814			1,814			—			1,814			—
	Total liabilities	$	688,416		$	721,732		$	3,569		$	675,873		$	42,290
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation	'
	The following table presents the changes in fair value of our Level 3 assets and liabilities (all related to derivative instruments) for the three and six months ended June 30, 2014 and 2013:
		Three Months Ended June 30,						Six Months Ended June 30,
	Level 3 Financial Instruments	2014			2013			2014			2013
		(In thousands)
	Liability balance at beginning of period	$	(22,473	)	$	(6,249	)	$	(35,318	)	$	(33,658	)
	Change in fair value:
	Recognized in other comprehensive income	(90,559		)	50,615			(112,695		)	1,413
	Recognized in cost of products sold	(7,084		)	3,662			1,885			47,222
	Settlement date fair value of contractual maturities:
	Recognized in sales and other revenues	48,942			(3,868		)	74,273			15,316
	Recognized in cost of products sold	(4,463		)	(7,034		)	(3,782		)	6,833
	Asset (liability) balance at end of period	$	(75,637	)	$	37,126		$	(75,637	)	$	37,126

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Schedule Of Earnings Per Share	'
	The following is a reconciliation of the components of the basic and diluted per share computations for net income attributable to HollyFrontier stockholders:
		Three Months Ended June 30,				Six Months Ended June 30,
		2014		2013		2014		2013
		(In thousands, except per share data)
	Net income attributable to HollyFrontier stockholders	$	176,429	$	256,981	$	328,490	$	590,650
	Participating securities' share in earnings	475		917		945		2,201
	Net income attributable to common shares	$	175,954	$	256,064	$	327,545	$	588,449
	Average number of shares of common stock outstanding	198,139		201,543		198,217		202,131
	Effect of dilutive variable restricted shares and performance share units (1)	241		362		191		354
	Average number of shares of common stock outstanding assuming dilution	198,380		201,905		198,408		202,485
	Basic earnings per share	$	0.89	$	1.27	$	1.65	$	2.91
	Diluted earnings per share	$	0.89	$	1.27	$	1.65	$	2.91
	(1) Excludes anti-dilutive restricted and performance share units of:	26		232		2		248

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2014
Share-based Compensation [Abstract]	'
Summary Of Restricted Stock Activity	'
	A summary of restricted stock and restricted stock unit activity and changes during the six months ended June 30, 2014 is presented below:
	Restricted Stock and Restricted Stock Units	Grants		Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value ($000)
	Outstanding at January 1, 2014 (non-vested)	737,562		$	39.54
	Granted	70,243		48.22
	Vesting (transfer/conversion to common stock)	(103,586	)	33.71
	Forfeited	(72,697	)	42.24
	Outstanding at June 30, 2014 (non-vested)	631,522		$	41.15	$	27,591
Summary Of Performance Share Unit Activity	'
	A summary of performance share unit activity and changes during the six months ended June 30, 2014 is presented below:
	Performance Share Units	Grants
	Outstanding at January 1, 2014 (non-vested)	983,610
	Granted	26,493
	Vesting and transfer of ownership to recipients	(181,290	)
	Forfeited	(108,182	)
	Outstanding at June 30, 2014 (non-vested)	720,631

Cash_and_Cash_Equivalents_and_1

Cash and Cash Equivalents and Investments in Marketable Securities (Tables)	6 Months Ended
	Jun. 30, 2014
Cash And Cash Equivalents And Investments In Marketable Securities [Abstract]	'
Available-For-Sale Securities	'
	The following is a summary of our marketable securities:
		Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value
									(Net Carrying Amount)
		(In thousands)
	June 30, 2014
	Certificates of deposit	$	79,704	$	15	$	(3	)	$	79,716
	Commercial paper	76,670		16		—			76,686
	Corporate debt securities	146,455		34		(18		)	146,471
	State and political subdivisions debt securities	376,789		29		(23		)	376,795
	Total marketable securities	$	679,618	$	94	$	(44	)	$	679,668
	December 31, 2013
	Certificates of deposit	$	74,802	$	21	$	(1	)	$	74,822
	Commercial paper	78,216		28		—			78,244
	Corporate debt securities	96,889		6		(44		)	96,851
	State and political subdivisions debt securities	475,235		49		(41		)	475,243
	Total marketable securities	$	725,142	$	104	$	(86	)	$	725,160

Inventories_Tables

Inventories (Tables)	6 Months Ended
	Jun. 30, 2014
Inventory, Net [Abstract]	'
Inventory Components	'
	Inventory consists of the following components:
			June 30,		December 31, 2013
			2014
			(In thousands)
	Crude oil		$	628,215	$	567,281
	Other raw materials and unfinished products(1)		186,892		154,534
	Finished products(2)		609,453		519,633
	Process chemicals(3)		4,470		3,504
	Repair and maintenance supplies and other		75,802		109,295
	Total inventory		$	1,504,832	$	1,354,247
	-1	Other raw materials and unfinished products include feedstocks and blendstocks, other than crude.
	-2	Finished products include gasolines, jet fuels, diesels, lubricants, asphalts, LPG’s and residual fuels.
	-3	Process chemicals include additives and other chemicals.

Debt_Tables

Debt (Tables)	6 Months Ended
	Jun. 30, 2014
Debt [Abstract]	'
Carrying Amounts Of Long-Term Debt	'
	The carrying amounts of long-term debt are as follows:
		June 30,			December 31,
		2014			2013
		(In thousands)
	6.875% Senior Notes
	Principal	$	150,000		$	150,000
	Unamortized premium	4,606			5,054
		154,606			155,054
	Financing Obligation	34,026			34,835
	Total HollyFrontier long-term debt	188,632			189,889
	HEP Credit Agreement	543,000			363,000
	HEP 6.5% Senior Notes
	Principal	300,000			300,000
	Unamortized discount	(3,747		)	(4,073		)
		296,253			295,927
	HEP 8.25% Senior Notes
	Principal	—			150,000
	Unamortized discount	—			(1,297		)
		—			148,703
	Total HEP long-term debt	839,253			807,630
	Total long-term debt	$	1,027,885		$	997,519

Derivative_Instruments_And_Hed1

Derivative Instruments And Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]	'
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	'
	The following table presents the pre-tax effect on other comprehensive income (“OCI”) and earnings due to fair value adjustments and maturities of commodity price swaps under hedge accounting:
		Unrealized Gain (Loss) Recognized in OCI				Gain (Loss) Recognized in Earnings Due to Settlements						Gain (Loss) Attributable to Hedge Ineffectiveness Recognized in Earnings
						Location		Amount				Location		Amount
		(In thousands)
	Three Months Ended June 30, 2014
	Commodity price swaps
	Change in fair value	$	47,988			Sales and other revenues		$	(48,942	)
	Gain reclassified to earnings due to settlements	(13,197		)		Cost of products sold		61,124
	Amortization of discontinued hedges reclassified to earnings	270				Operating expenses		745				Operating expenses		$	1,354
	Total	$	35,061					$	12,927					$	1,354
	Three Months Ended June 30, 2013
	Commodity price swaps
	Change in fair value	$	24,764			Sales and other revenues		$	3,868			Sales and other revenues		$	550
	Gain reclassified to earnings due to settlements	(6,589		)		Cost of products sold		1,930				Cost of products sold		(1,439		)
	Amortization of discontinued hedges reclassified to earnings	270				Operating expenses		521				Operating expenses		106
	Total	$	18,445					$	6,319					$	(783	)
	Six Months Ended June 30, 2014
	Commodity price swaps
	Change in fair value	$	140,466			Sales and other revenues		$	(74,273	)
	Gain reclassified to earnings due to settlements	(18,957		)		Cost of products sold		90,441
	Amortization of discontinued hedge reclassified to earnings	540				Operating expenses		2,249				Operating expenses		$	(806	)
	Total	$	122,049					$	18,417					$	(806	)
	Six Months Ended June 30, 2013
	Commodity price swaps
	Change in fair value	$	14,360			Sales and other revenues		$	(15,316	)		Sales and other revenues		$	194
	Loss reclassified to earnings due to settlements	20,611				Cost of products sold		(4,603		)		Cost of products sold		1,692
	Amortization of discontinued hedge reclassified to earnings	360				Operating expenses		(1,052		)		Operating expenses		(259		)
	Total	$	35,331					$	(20,971	)				$	1,627
Schedule of Notional Amounts of Outstanding Derivatives Serving as Cash Flow Hedges	'
	As of June 30, 2014, we have the following notional contract volumes related to outstanding derivative instruments serving as cash flow hedges against price risk on forecasted purchases of natural gas and crude oil and sales of refined products:
						Notional Contract Volumes by Year of Maturity
	Derivative Instrument		Total Outstanding Notional			2014			2015			2016			2017			Unit of Measure
	Natural gas - long		33,600,000			4,800,000			9,600,000			9,600,000			9,600,000			MMBTU
	WTI crude oil - long		18,456,000			14,076,000			4,380,000			—			—			Barrels
	Ultra-low sulfur diesel - short		11,832,000			7,452,000			4,380,000			—			—			Barrels
	Sub octane gasoline - short		6,624,000			6,624,000			—			—			—			Barrels
	Forward sales - diesel and gasoline		100,000			100,000			—			—			—			Barrels
Schedule of Realized Gain (Loss)	'
	The following table presents the pre-tax effect on income due to maturities and fair value adjustments of our economic hedges:
			Three Months Ended June 30,								Six Months Ended June 30,
	Location of Gain (Loss) Recognized in Income		2014				2013				2014				2013
			(In thousands)
	Cost of products sold		$	(24,432	)		$	1,839			$	(24,406	)		$	35,431
	Operating expenses		(140		)		(308		)		(188		)		(5,301		)
	Total		$	(24,572	)		$	1,531			$	(24,594	)		$	30,130
Schedule of Notional Amounts of Outstanding Derivative Positions	'
	As of June 30, 2014, we have the following notional contract volumes related to our outstanding derivative contracts serving as economic hedges:
					Notional Contract Volumes by Year of Maturity
	Derivative Instrument	Total Outstanding Notional			2014			2015			2016			2017			Unit of Measure
	Commodity price swap (WCS spread) - long	3,220,000			3,220,000			—			—			—			Barrels
	Commodity price swap (natural gas) - long	33,600,000			4,800,000			9,600,000			9,600,000			9,600,000			MMBTU
	Commodity price swap (natural gas) - short	33,600,000			4,800,000			9,600,000			9,600,000			9,600,000			MMBTU
	NYMEX futures (WTI) - short	2,935,000			2,935,000			—			—			—			Barrels
Schedule of Interest Rate Derivatives	'
	The following table presents the pre-tax effect on other comprehensive income and earnings due to fair value adjustments and maturities of HEP's interest rate swaps under hedge accounting:
		Unrealized Gain (Loss) Recognized in OCI				Loss Recognized in Earnings Due to Settlements
						Location		Amount
		(In thousands)
	Three Months Ended June 30, 2014
	Interest rate swaps
	Change in fair value	$	(1,299	)
	Loss reclassified to earnings due to settlements	553				Interest expense		$	(553	)
	Total	$	(746	)				$	(553	)
	Three Months Ended June 30, 2013
	Interest rate swaps
	Change in fair value	$	2,897
	Loss reclassified to earnings due to settlements	516				Interest expense		$	(516	)
	Total	$	3,413					$	(516	)
	Six Months Ended June 30, 2014
	Interest rate swaps
	Change in fair value	$	(1,742	)
	Loss reclassified to earnings due to settlements	1,091				Interest expense		$	(1,091	)
	Total	$	(651	)				$	(1,091	)
	Six Months Ended June 30, 2013
	Interest rate swaps
	Change in fair value	$	2,955
	Loss reclassified to earnings due to settlements	1,020
	Amortization of discontinued hedge reclassified to earnings	849				Interest expense		$	(1,869	)
	Total	$	4,824					$	(1,869	)
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	'
	The following table presents the fair value and balance sheet locations of our outstanding derivative instruments. These amounts are presented on a gross basis with offsetting balances that reconcile to a net asset or liability position in our consolidated balance sheets. We present on a net basis to reflect the net settlement of these positions in accordance with provisions of our master netting arrangements.
			Derivatives in Net Asset Position												Derivatives in Net Liability Position
			Gross Assets				Gross Liabilities Offset in Balance Sheet				Net Assets Recognized in Balance Sheet				Gross Liabilities				Gross Assets Offset in Balance Sheet			Net Liabilities Recognized in Balance Sheet
							(In thousands)
	June 30, 2014
	Derivatives designated as cash flow hedging instruments:
	Commodity price swap contracts		$	156,904			$	(72,770	)		$	84,134			$	19,565			$	(16,448	)	$	3,117
	Forward sales contracts		—				(196		)		(196		)		—				—			—
	Interest rate swap contracts		834				—				834				1,629				—			1,629
			$	157,738			$	(72,966	)		$	84,772			$	21,194			$	(16,448	)	$	4,746
	Derivatives not designated as cash flow hedging instruments:
	Commodity price swap contracts		$	5,961			$	(2,709	)		$	3,252			$	9,091			$	(4,937	)	$	4,154
	NYMEX futures contracts		—				—				—				3,337				—			3,337
			$	5,961			$	(2,709	)		$	3,252			$	12,428			$	(4,937	)	$	7,491
	Total net balance										$	88,024										$	12,237
	Balance sheet classification:		Prepayment and other								$	85,660			Accrued liabilities							$	3,337
			Intangibles and other								2,364				Other long-term liabilities							8,900
											$	88,024										$	12,237
			Derivatives in Net Asset Position												Derivatives in Net Liability Position
			Gross Assets				Gross Liabilities Offset in Balance Sheet				Net Assets Recognized in Balance Sheet				Gross Liabilities				Gross Assets Offset in Balance Sheet			Net Liabilities Recognized in Balance Sheet
							(In thousands)
	December 31, 2013
	Derivatives designated as cash flow hedging instruments:
	Commodity price swap contracts		$	—			$	—			$	—			$	63,561			$	(23,679	)	$	39,882
	Interest rate swap contracts		1,670				—				1,670				1,814				—			1,814
			$	1,670			$	—			$	1,670			$	65,375			$	(23,679	)	$	41,696
	Derivatives not designated as cash flow hedging instruments:
	Commodity price swap contracts		$	6,972			$	—			$	6,972			$	19,766			$	(12,611	)	$	7,155
	NYMEX futures contracts		—				—				—				3,569				—			3,569
			$	6,972			$	—			$	6,972			$	23,335			$	(12,611	)	$	10,724
	Total net balance										$	8,642										$	52,420
	Balance sheet classification:		Prepayment and other								$	6,972			Accrued liabilities							$	26,843
			Intangibles and other								1,670				Other long-term liabilities							25,577
											$	8,642										$	52,420

Equity_Tables

Equity (Tables)	6 Months Ended
	Jun. 30, 2014
Stockholders' Equity Note [Abstract]	'
Changes To Equity	'
	Changes to equity during the six months ended June 30, 2014 are presented below:
			HollyFrontier			Noncontrolling			Total
			Stockholders’			Interest			Equity
			Equity
			(In thousands)
	Balance at December 31, 2013		$	5,999,620		$	609,778		$	6,609,398
	Net income		328,490			20,625			349,115
	Dividends		(323,121		)	—			(323,121		)
	Distributions to noncontrolling interest holders		—			(38,548		)	(38,548		)
	Other comprehensive income, net of tax		74,618			(395		)	74,223
	Equity-based compensation		12,188			1,658			13,846
	Excess tax benefit attributable to equity-based compensation		3,778			—			3,778
	Purchase of treasury stock (1)		(22,041		)	—			(22,041		)
	Purchase of HEP units for restricted grants		—			(406		)	(406		)
	Other		—			375			375
	Balance at June 30, 2014		$	6,073,532		$	593,087		$	6,666,619
	-1	Includes 92,048 shares withheld under the terms of stock-based compensation agreements to provide funds for the payment of payroll and income taxes due at the vesting of share-based awards.

Other_Comprehensive_Income_Los1

Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Jun. 30, 2014
Other Comprehensive Income (Loss) [Abstract]	'
Components And Allocated Tax Effects Of Other Comprehensive Income (Loss)	'
	The components and allocated tax effects of other comprehensive income (loss) are as follows:
		Before-Tax			Tax Expense			After-Tax
					(Benefit)
		(In thousands)
	Three Months Ended June 30, 2014
	Net unrealized gain on marketable securities	$	25		$	17		$	8
	Net unrealized gain on hedging instruments	34,315			13,400			20,915
	Other comprehensive income	34,340			13,417			20,923
	Less other comprehensive loss attributable to noncontrolling interest	(453		)	—			(453		)
	Other comprehensive income attributable to HollyFrontier stockholders	$	34,793		$	13,417		$	21,376
	Three Months Ended June 30, 2013
	Net unrealized loss on marketable securities	$	(45	)	$	(36	)	$	(9	)
	Net unrealized gain on hedging instruments	21,858			7,747			14,111
	Net change in pension and other post-retirement benefit obligations	28,986			11,275			17,711
	Other comprehensive income	50,799			18,986			31,813
	Less other comprehensive income attributable to noncontrolling interest	1,940			—			1,940
	Other comprehensive income attributable to HollyFrontier stockholders	$	48,859		$	18,986		$	29,873
	Six Months Ended June 30, 2014
	Net unrealized gain on marketable securities	$	36		$	14		$	22
	Net unrealized gain on hedging instruments	121,398			47,143			74,255
	Net change in post-retirement benefit obligations	(89		)	(35		)	(54		)
	Other comprehensive income	121,345			47,122			74,223
	Less other comprehensive loss attributable to noncontrolling interest	(395		)	—			(395		)
	Other comprehensive income attributable to HollyFrontier stockholders	$	121,740		$	47,122		$	74,618
	Six Months Ended June 30, 2013
	Net unrealized loss on marketable securities	$	(29	)	$	(28	)	$	(1	)
	Net unrealized gain on hedging instruments	40,155			14,556			25,599
	Net change in pension and other post-retirement benefit obligations	30,712			11,946			18,766
	Other comprehensive income	70,838			26,474			44,364
	Less other comprehensive income attributable to noncontrolling interest	2,733			—			2,733
	Other comprehensive income attributable to HollyFrontier stockholders	$	68,105		$	26,474		$	41,631
Reclassifications from Other Comprehensive Income to Income Statement [Table Text Block]	'
	The following table presents the income statement line item effects for reclassifications out of accumulated other comprehensive income (“AOCI”):
	AOCI Component	Gain (Loss) Reclassified From AOCI						Income Statement Line Item
		(In thousands)
		Three Months Ended June 30,
		2014			2013
	Marketable securities	$	—		$	6		Interest income
		—			2			Income tax expense
		—			4			Net of tax
	Hedging instruments:
	Commodity price swaps	(48,942		)	3,868			Sales and other revenues
		61,124			1,930			Cost of products sold
		745			521			Operating expenses
	Interest rate swaps	(553		)	(516		)	Interest expense
		12,374			5,803
		4,918			2,379			Income tax expense
		7,456			3,424			Net of tax
		335			313			Noncontrolling interest
		7,791			3,737			Net of tax and noncontrolling interest
	Pension obligation	—			(2,460		)	Cost of products sold
		—			(23,260		)	Operating expenses
		—			(3,266		)	General and administrative expenses
		—			(28,986		)
		—			(11,275		)	Income tax benefit
		—			(17,711		)	Net of tax
	Total reclassifications for the period	$	7,791		$	(13,970	)
		Six Months Ended June 30,
		2014			2013
	Marketable securities	$	1		$	3		Interest income
		—			1			Income tax expense
		1			2			Net of tax
	Hedging instruments:
	Commodity price swaps	(74,273		)	(15,316		)	Sales and other revenues
		90,441			(4,603		)	Cost of products sold
		2,249			(1,052		)	Operating expenses
	Interest rate swaps	(1,091		)	(1,869		)	Interest expense
		17,326			(22,840		)
		6,961			(8,444		)	Income tax expense (benefit)
		10,365			(14,396		)	Net of tax
		661			1,133			Noncontrolling interest
		11,026			(13,263		)	Net of tax and noncontrolling interest
	Pension and other post-retirement benefit obligations:
	Pension obligation	—			(2,460		)	Cost of products sold
		—			(23,260		)	Operating expenses
		—			(3,266		)	General and administrative expenses
		—			(28,986		)
		—			(11,275		)	Income tax benefit
		—			(17,711		)	Net of tax
	Post-retirement healthcare obligation	—			(84		)	Cost of products sold
		—			(1,549		)	Operating expenses
		—			(93		)	General and administrative expenses
		—			(1,726		)
		—			(671		)	Income tax benefit
		—			(1,055		)	Net of tax
	Total reclassifications for the period	$	11,027		$	(32,027	)
Accumulated Other Comprehensive Loss In Equity	'
	Accumulated other comprehensive income (loss) in the equity section of our consolidated balance sheets includes:
		June 30,			December 31,
		2014			2013
		(In thousands)
	Unrealized gain on post-retirement benefit obligations	$	27,637		$	27,691
	Unrealized gain on marketable securities	32			10
	Unrealized gain (loss) on hedging instruments, net of noncontrolling interest	47,771			(26,879		)
	Accumulated other comprehensive income	$	75,440		$	822

Retirement_Plan_Tables

Retirement Plan (Tables)	6 Months Ended
	Jun. 30, 2014
Pension and Other Postretirement Benefit Expense [Abstract]	'
Net Periodic Pension Expense	'
	The net periodic benefit expense of this plan consisted of the following components:
		Three Months Ended June 30,						Six Months Ended June 30,
		2014			2013			2014			2013
		(In thousands)
	Service cost – benefit earned during the period	$	224		$	278		$	448		$	556
	Interest cost on projected benefit obligations	160			159			319			318
	Amortization of prior service credit	(1,074		)	(1,474		)	(2,148		)	(2,948		)
	Amortization of net loss	—			31			—			62
	Loss on settlement	—			—			—			1,726
	Net periodic post-retirement credit	$	(690	)	$	(1,006	)	$	(1,381	)	$	(286	)

Segment_Information_Tables

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2014
Segment Information [Abstract]	'
Schedule Of Segment Reporting Information	'
		Refining		HEP		Corporate			Consolidations			Consolidated
						and Other			and Eliminations			Total
		(In thousands)
	Three Months Ended June 30, 2014
	Sales and other revenues	$	5,361,914	$	75,024	$	506		$	(64,844	)	$	5,372,600
	Depreciation and amortization	$	83,840	$	15,477	$	2,280		$	(207	)	$	101,390
	Income (loss) from operations	$	292,214	$	32,464	$	(27,802	)	$	(531	)	$	296,345
	Capital expenditures	$	92,334	$	18,178	$	9,976		$	—		$	120,488
	Three Months Ended June 30, 2013
	Sales and other revenues	$	5,286,881	$	75,121	$	234		$	(63,388	)	$	5,298,848
	Depreciation and amortization	$	53,443	$	15,619	$	1,637		$	(207	)	$	70,492
	Income (loss) from operations	$	458,777	$	34,392	$	(32,646	)	$	(517	)	$	460,006
	Capital expenditures	$	74,866	$	11,848	$	12,125		$	—		$	98,839
	Six Months Ended June 30, 2014
	Sales and other revenues	$	10,136,994	$	162,036	$	1,621		$	(136,998	)	$	10,163,653
	Depreciation and amortization	$	147,381	$	30,661	$	4,310		$	(414	)	$	181,938
	Income (loss) from operations	$	543,423	$	78,329	$	(53,357	)	$	(1,054	)	$	567,341
	Capital expenditures	$	192,277	$	38,782	$	13,710		$	—		$	244,769
	Six Months Ended June 30, 2013
	Sales and other revenues	$	9,979,307	$	151,605	$	797		$	(125,072	)	$	10,006,637
	Depreciation and amortization	$	110,613	$	29,368	$	2,687		$	(414	)	$	142,254
	Income (loss) from operations	$	1,000,979	$	67,866	$	(58,618	)	$	(1,026	)	$	1,009,201
	Capital expenditures	$	138,498	$	16,861	$	15,444		$	—		$	170,803
		Refining		HEP		Corporate and Other			Consolidations and Eliminations			Consolidated Total
		(In thousands)
	June 30, 2014
	Cash, cash equivalents and total investments in marketable securities	$	3,794	$	6,066	$	1,788,110		$	—		$	1,797,970
	Total assets	$	7,442,830	$	1,416,952	$	1,905,000		$	(306,399	)	$	10,458,383
	Long-term debt	$	—	$	839,253	$	188,632		$	—		$	1,027,885
	December 31, 2013
	Cash, cash equivalents and total investments in marketable securities	$	1,860	$	6,352	$	1,657,051		$	—		$	1,665,263
	Total assets	$	7,094,558	$	1,413,908	$	1,881,119		$	(332,846	)	$	10,056,739
	Long-term debt	$	—	$	807,630	$	189,889		$	—		$	997,519

Supplemental_GuarantorNonGuara1

Supplemental Guarantor/Non-Guarantor Financial Information (Tables)	6 Months Ended
	Jun. 30, 2014
Supplemental Guarantor / Non-Guarantor Financial Information [Abstract]	'
Condensed Consolidating Balance Sheet	'
	Condensed Consolidating Balance Sheet
	June 30, 2014	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
					Restricted			Guarantor						Corp. Before			Non-Restricted
					Subsidiaries			Restricted						Consolidation			Subsidiaries
								Subsidiaries						of HEP			(HEP Segment)
		(In thousands)
	ASSETS
	Current assets:
	Cash and cash equivalents	$	1,108,232		$	3,777		$	227		$	—		$	1,112,236		$	6,066		$	—		$	1,118,302
	Marketable securities	679,668			—			—			—			679,668			—			—			679,668
	Accounts receivable, net	6,070			768,504			3,087			—			777,661			34,359			(31,840		)	780,180
	Intercompany accounts receivable	—			726,278			359,183			(1,085,461		)	—			—			—			—
	Inventories	—			1,503,250			—			—			1,503,250			1,582			—			1,504,832
	Income taxes receivable	18,875			—			—			—			18,875			—			—			18,875
	Prepayments and other	16,345			122,130			—			—			138,475			2,164			(6,365		)	134,274
	Total current assets	1,829,190			3,123,939			362,497			(1,085,461		)	4,230,165			44,171			(38,205		)	4,236,131
	Properties, plants and equip, net	32,537			2,714,741			551			—			2,747,829			1,011,961			(267,047		)	3,492,743
	Marketable securities (long-term)	—			—			—			—			—			—			—			—
	Investment in subsidiaries	6,410,993			250,981			—			(6,661,974		)	—			—			—			—
	Intangibles and other assets	24,535			2,345,299			25,000			(25,000		)	2,369,834			360,820			(1,145		)	2,729,509
	Total assets	$	8,297,255		$	8,434,960		$	388,048		$	(7,772,435	)	$	9,347,828		$	1,416,952		$	(306,397	)	$	10,458,383
	LIABILITIES AND EQUITY
	Current liabilities:
	Accounts payable	$	14,406		$	1,624,681		$	—		$	—		$	1,639,087		$	17,706		$	(31,840	)	$	1,624,953
	Intercompany accounts payable	1,085,461			—			—			(1,085,461		)	—			—			—			—
	Accrued liabilities	43,581			60,441			1,577			—			105,599			26,527			(6,365		)	125,761
	Deferred income tax liabilities	216,981			—			—			—			216,981			—			—			216,981
	Total current liabilities	1,360,429			1,685,122			1,577			(1,085,461		)	1,961,667			44,233			(38,205		)	1,967,695
	Long-term debt	179,606			34,026			—			(25,000		)	188,632			839,253			—			1,027,885
	Liability to HEP	—			239,387			—			—			239,387			—			(239,387		)	—
	Deferred income tax liabilities	652,153			—			—			—			652,153			5,312			—			657,465
	Other long-term liabilities	36,993			65,432			—			—			102,425			38,585			(2,291		)	138,719
	Investment in HEP	—			—			135,490			—			135,490			—			(135,490		)	—
	Equity – HollyFrontier	6,068,074			6,410,993			250,981			(6,661,974		)	6,068,074			392,304			(386,846		)	6,073,532
	Equity – noncontrolling interest	—			—			—			—			—			97,265			495,822			593,087
	Total liabilities and equity	$	8,297,255		$	8,434,960		$	388,048		$	(7,772,435	)	$	9,347,828		$	1,416,952		$	(306,397	)	$	10,458,383
	Condensed Consolidating Balance Sheet
	December 31, 2013	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
					Restricted			Guarantor						Corp. Before			Non-Restricted
					Subsidiaries			Restricted						Consolidation			Subsidiaries
								Subsidiaries						of HEP			(HEP Segment)
		(In thousands)
	ASSETS
	Current assets:
	Cash and cash equivalents	$	931,920		$	1,817		$	14		$	—		$	933,751		$	6,352		$	—		$	940,103
	Marketable securities	725,160			—			—			—			725,160			—			—			725,160
	Accounts receivable, net	6,095			698,109			8,075			—			712,279			34,736			(38,213		)	708,802
	Intercompany accounts receivable	—			149,907			313,623			(463,530		)	—			—			—			—
	Inventories	—			1,352,656			—			—			1,352,656			1,591			—			1,354,247
	Income taxes receivable	109,376			—			—			—			109,376			—			—			109,376
	Prepayments and other	21,843			45,413			—			—			67,256			2,283			(10,783		)	58,756
	Total current assets	1,794,394			2,247,902			321,712			(463,530		)	3,900,478			44,962			(48,996		)	3,896,444
	Properties, plants and equip, net	30,007			2,633,739			24			—			2,663,770			1,004,975			(274,149		)	3,394,596
	Investment in subsidiaries	5,722,025			216,687			—			(5,938,712		)	—			—			—			—
	Intangibles and other assets	23,034			2,380,268			25,000			(25,000		)	2,403,302			363,970			(1,573		)	2,765,699
	Total assets	$	7,569,460		$	7,478,596		$	346,736		$	(6,427,242	)	$	8,967,550		$	1,413,907		$	(324,718	)	$	10,056,739
	LIABILITIES AND EQUITY
	Current liabilities:
	Accounts payable	$	16,704		$	1,323,603		$	383		$	—		$	1,340,690		$	22,898		$	(38,212	)	$	1,325,376
	Intercompany accounts payable	463,530			—			—			(463,530		)	—			—			—			—
	Accrued liabilities	43,254			63,181			795			—			107,230			28,668			(10,783		)	125,115
	Deferred income tax liabilities	223,999			—			—			—			223,999			—			—			223,999
	Total current liabilities	747,487			1,386,784			1,178			(463,530		)	1,671,919			51,566			(48,995		)	1,674,490
Long-term debt	180,054			34,835			—			(25,000		)	189,889			807,630			—			997,519
Liability to HEP	—			245,536			—			—			245,536			—			(245,536		)	—
Deferred income tax liabilities	611,555			—			—			—			611,555			5,287			—			616,842
Other long-term liabilities	35,874			89,416			—			—			125,290			35,918			(2,718		)	158,490
Investment in HEP	—			—			128,871			—			128,871			—			(128,871		)	—
Equity – HollyFrontier	5,994,490			5,722,025			216,687			(5,938,712		)	5,994,490			416,018			(410,888		)	5,999,620
Equity – noncontrolling interest	—			—			—			—			—			97,488			512,290			609,778
Total liabilities and equity	$	7,569,460		$	7,478,596		$	346,736		$	(6,427,242	)	$	8,967,550		$	1,413,907		$	(324,718	)	$	10,056,739
Condensed Consolidating Statement of Comprehensive Income	'
	Condensed Consolidating Statement of Income and Comprehensive Income
	Three Months Ended June 30, 2014	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
					Restricted			Guarantor						Corp. Before			Non-Restricted
					Subsidiaries			Restricted						Consolidation			Subsidiaries
								Subsidiaries						of HEP			(HEP Segment)
		(In thousands)
	Sales and other revenues	$	179		$	5,362,277		$	(36	)	$	—		$	5,362,420		$	75,024		$	(64,844	)	$	5,372,600
	Operating costs and expenses:
	Cost of products sold	—			4,738,586			—			—			4,738,586			—			(63,740		)	4,674,846
	Operating expenses	—			247,451			—			—			247,451			24,567			(364		)	271,654
	General and administrative	24,343			1,469			37			—			25,849			2,516			—			28,365
	Depreciation and amortization	2,010			87,473			—			—			89,483			15,477			(3,570		)	101,390
	Total operating costs and expenses	26,353			5,074,979			37			—			5,101,369			42,560			(67,674		)	5,076,255
	Income (loss) from operations	(26,174		)	287,298			(73		)	—			261,051			32,464			2,830			296,345
	Other income (expense):
	Earnings (loss) of equity method investments	303,788			14,546			16,132			(319,990		)	14,476			748			(16,132		)	(908		)
	Interest income (expense)	(373		)	1,944			143			—			1,714			(8,329		)	(2,337		)	(8,952		)
		303,415			16,490			16,275			(319,990		)	16,190			(7,581		)	(18,469		)	(9,860		)
	Income before income taxes	277,241			303,788			16,202			(319,990		)	277,241			24,883			(15,639		)	286,485
	Income tax provision	101,304			—			—			—			101,304			28			—			101,332
	Net income	175,937			303,788			16,202			(319,990		)	175,937			24,855			(15,639		)	185,153
	Less net income attributable to noncontrolling interest	—			—			—			—			—			1,416			7,308			8,724
	Net income attributable to HollyFrontier stockholders	$	175,937		$	303,788		$	16,202		$	(319,990	)	$	175,937		$	23,439		$	(22,947	)	$	176,429
	Comprehensive income attributable to HollyFrontier stockholders	$	197,313		$	338,556		$	15,909		$	(354,465	)	$	197,313		$	23,145		$	(22,653	)	$	197,805
	Condensed Consolidating Statement of Income and Comprehensive Income
	Three Months Ended June 30, 2013	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
					Restricted			Guarantor						Corp. Before			Non-Restricted
					Subsidiaries			Restricted						Consolidation			Subsidiaries
								Subsidiaries						of HEP			(HEP Segment)
		(In thousands)
	Sales and other revenues	$	100		$	5,286,984		$	31		$	—		$	5,287,115		$	75,121		$	(63,388	)	$	5,298,848
	Operating costs and expenses:
	Cost of products sold	—			4,518,737			92			282			4,519,111			—			(62,303		)	4,456,808
	Operating expenses	—			255,874			19			—			255,893			22,010			(361		)	277,542
	General and administrative	30,242			630			28			—			30,900			3,100			—			34,000
	Depreciation and amortization	1,400			57,043			—			—			58,443			15,619			(3,570		)	70,492
	Total operating costs and expenses	31,642			4,832,284			139			282			4,864,347			40,729			(66,234		)	4,838,842
	Income (loss) from operations	(31,542		)	454,700			(108		)	(282		)	422,768			34,392			2,846			460,006
	Other income (expense):
	Earnings (loss) of equity method investments	469,228			12,592			14,401			(483,655		)	12,566			746			(14,401		)	(1,089		)
	Interest income (expense)	(7,456		)	1,936			134			294			(5,092		)	(11,624		)	(2,300		)	(19,016		)
	Loss on early extinguishment of debt	(22,109		)	—			—			—			(22,109		)	—			—			(22,109		)
		439,663			14,528			14,535			(483,361		)	(14,635		)	(10,878		)	(16,701		)	(42,214		)
	Income before income taxes	408,121			469,228			14,427			(483,643		)	408,133			23,514			(13,855		)	417,792
	Income tax provision	151,698			—			—			—			151,698			345			—			152,043
	Net income	256,423			469,228			14,427			(483,643		)	256,435			23,169			(13,855		)	265,749
	Less net income attributable to noncontrolling interest	—			—			—			—			—			1,130			7,638			8,768
	Net income attributable to HollyFrontier stockholders	$	256,423		$	469,228		$	14,427		$	(483,643	)	$	256,435		$	22,039		$	(21,493	)	$	256,981
	Comprehensive income attributable to HollyFrontier stockholders	$	286,296		$	489,146		$	15,900		$	(505,034	)	$	286,308		$	23,512		$	(22,966	)	$	286,854
	Condensed Consolidating Statement of Income and Comprehensive Income
	Six Months Ended June 30, 2014	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
					Restricted			Guarantor						Corp. Before			Non-Restricted
					Subsidiaries			Restricted						Consolidation			Subsidiaries
								Subsidiaries						of HEP			(HEP Segment)
		(In thousands)
	Sales and other revenues	$	280		$	10,137,400		$	935		$	—		$	10,138,615		$	162,036		$	(136,998	)	$	10,163,653
	Operating costs and expenses:
	Cost of products sold	—			8,948,308			—			—			8,948,308			—			(134,842		)	8,813,466
	Operating expenses	—			498,927			—			—			498,927			47,379			(686		)	545,620
	General and administrative	45,450			4,095			76			—			49,621			5,667			—			55,288
	Depreciation and amortization	3,800			154,580			—			—			158,380			30,661			(7,103		)	181,938
	Total operating costs and expenses	49,250			9,605,910			76			—			9,655,236			83,707			(142,631		)	9,596,312
	Income (loss) from operations	(48,970		)	531,490			859			—			483,379			78,329			5,633			567,341
Other income (expense):
Earnings (loss) of equity method investments	566,147			30,568			32,415			(599,694		)	29,436			1,270			(32,415		)	(1,709		)
Interest income (expense)	(797		)	4,089			273			—			3,565			(18,780		)	(4,679		)	(19,894		)
Loss on early extinguishment of debt	—			—			—			—			—			(7,677		)	—			(7,677		)
	565,350			34,657			32,688			(599,694		)	33,001			(25,187		)	(37,094		)	(29,280		)
Income before income taxes	516,380			566,147			33,547			(599,694		)	516,380			53,142			(31,461		)	538,061
Income tax provision	188,843			—			—			—			188,843			103			—			188,946
Net income	327,537			566,147			33,547			(599,694		)	327,537			53,039			(31,461		)	349,115
Less net income attributable to noncontrolling interest	—			—			—			—			—			5,053			15,572			20,625
Net income attributable to HollyFrontier stockholders	$	327,537		$	566,147		$	33,547		$	(599,694	)	$	327,537		$	47,986		$	(47,033	)	$	328,490
Comprehensive income attributable to HollyFrontier stockholders	$	402,155		$	687,940		$	33,291		$	(721,231	)	$	402,155		$	47,730		$	(46,777	)	$	403,108
Condensed Consolidating Statement of Income and Comprehensive Income
Six Months Ended June 30, 2013	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
				Restricted			Guarantor						Corp. Before			Non-Restricted
				Subsidiaries			Restricted						Consolidation			Subsidiaries
							Subsidiaries						of HEP			(HEP Segment)
	(In thousands)
Sales and other revenues	$	631		$	9,979,410		$	63		$	—		$	9,980,104		$	151,605		$	(125,072	)	$	10,006,637
Operating costs and expenses:
Cost of products sold	—			8,371,865			—			415			8,372,280			—			(122,937		)	8,249,343
Operating expenses	—			495,297			—			—			495,297			48,039			(695		)	542,641
General and administrative	54,373			2,405			88			—			56,866			6,332			—			63,198
Depreciation and amortization	2,326			117,663			—			—			119,989			29,368			(7,103		)	142,254
Total operating costs and expenses	56,699			8,987,230			88			415			9,044,432			83,739			(130,735		)	8,997,436
Income (loss) from operations	(56,068		)	992,180			(25		)	(415		)	935,672			67,866			5,663			1,009,201
Other income (expense):
Earnings (loss)of equity method investments	1,020,119			24,206			26,393			(1,046,758		)	23,960			1,403			(26,393		)	(1,030		)
Interest income (expense)	(14,677		)	3,733			271			446			(10,227		)	(24,006		)	(4,572		)	(38,805		)
Loss on early extinguishment of debt	(22,109		)	—			—			—			(22,109		)	—			—			(22,109		)
	983,333			27,939			26,664			(1,046,312		)	(8,376		)	(22,603		)	(30,965		)	(61,944		)
Income before income taxes	927,265			1,020,119			26,639			(1,046,727		)	927,296			45,263			(25,302		)	947,257
Income tax provision	337,737			—			—			—			337,737			400			—			338,137
Net income	589,528			1,020,119			26,639			(1,046,727		)	589,559			44,863			(25,302		)	609,120
Less net income attributable to noncontrolling interest	—			—			—			—			—			4,020			14,450			18,470
Net income attributable to HollyFrontier stockholders	$	589,528		$	1,020,119		$	26,639		$	(1,046,727	)	$	589,559		$	40,843		$	(39,752	)	$	590,650
Comprehensive income attributable to HollyFrontier stockholders	$	631,160		$	1,057,542		$	28,731		$	(1,086,242	)	$	631,191		$	42,935		$	(41,844	)	$	632,282
Condensed Consolidating Statement of Cash Flows	'
	Condensed Consolidating Statement of Cash Flows
	Six Months Ended June 30, 2014	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
					Restricted			Guarantor						Corp. Before			Non-Restricted
					Subsidiaries			Restricted						Consolidation			Subsidiaries
								Subsidiaries						of HEP			(HEP Segment)
		(In thousands)
	Cash flows from operating activities	$	(144,972	)	$	773,845		$	38,968		$	—		$	667,841		$	92,667		$	(39,029	)	$	721,479
	Cash flows from investing activities
	Additions to properties, plants and equipment	(6,329		)	(199,132		)	(526		)	—			(205,987		)	—			—			(205,987		)
	Additions to properties, plants and equipment – HEP	—			—			—			—			—			(38,782		)	—			(38,782		)
	Investment in Sabine Biofuels	—			(5,000		)	—			—			(5,000		)	—			—			(5,000		)
	Repayment of advances to Sabine Biofuels	—			10,021			—			—			10,021			—			—			10,021
	Purchases of marketable securities	(498,080		)	—			—			—			(498,080		)	—			—			(498,080		)
	Sales and maturities of marketable securities	543,604			—			—			—			543,604			—			—			543,604
	Net advances to Parent	—			(582,930		)	(38,604		)	621,534			—			—			—			—
		39,195			(777,041		)	(39,130		)	621,534			(155,442		)	(38,782		)	—			(194,224		)
	Cash flows from financing activities
	Net borrowings under credit agreement – HEP	—			—			—			—			—			180,000			—			180,000
	Redemption of senior notes - HEP	—			—			—			—			—			(156,188		)	—			(156,188		)
	Inventory repurchase obligation	—			5,964			—			—			5,964			—			—			5,964
	Purchase of treasury stock	(20,135		)	—			—			—			(20,135		)	—			—			(20,135		)
	Dividends	(323,088		)	—			—			—			(323,088		)	—			—			(323,088		)
	Distributions to noncontrolling interest	—			—			—			—			—			(77,577		)	39,029			(38,548		)
	Excess tax benefit from equity-based compensation	3,778			—			—			—			3,778			—			—			3,778
	Purchase of units for incentive grants - HEP	—			—			—			—			—			(406		)	—			(406		)
	Deferred financing costs and other	—			(808		)	375			—			(433		)	—			—			(433		)
	Net advances from subsidiaries	621,534			—			—			(621,534		)	—			—			—			—
		282,089			5,156			375			(621,534		)	(333,914		)	(54,171		)	39,029			(349,056		)
	Cash and cash equivalents
	Increase (decrease) for the period	176,312			1,960			213			—			178,485			(286		)	—			178,199
	Beginning of period	931,920			1,817			14			—			933,751			6,352			—			940,103
	End of period	$	1,108,232		$	3,777		$	227		$	—		$	1,112,236		$	6,066		$	—		$	1,118,302
	Condensed Consolidating Statement of Cash Flows
	Six Months Ended June 30, 2013	Parent			Guarantor			Non-			Eliminations			HollyFrontier			Non-Guarantor			Consolidations and Eliminations			Consolidated
					Restricted			Guarantor						Corp. Before			Non-Restricted
					Subsidiaries			Restricted						Consolidation			Subsidiaries
								Subsidiaries						of HEP			(HEP Segment)
		(In thousands)
	Cash flows from operating activities	$	(374,074	)	$	758,289		$	20,573		$	—		$	404,788		$	81,542		$	(34,815	)	$	451,515
	Cash flows from investing activities:
	Additions to properties, plants and equipment	(5,025		)	(148,917		)	—			—			(153,942		)	—			—			(153,942		)
	Additions to properties, plants and equipment – HEP	—			—			—			—			—			(16,861		)	—			(16,861		)
	Proceeds from sale of property	—			3,321			—			—			3,321			2,481			—			5,802
	Investment in Sabine Biofuels	—			(2,000		)	—			—			(2,000		)	—			—			(2,000		)
	Advances to Sabine biofuels	—			(13,700		)	—			—			(13,700		)	—			—			(13,700		)
	Purchases of marketable securities	(399,154		)	—			—			—			(399,154		)	—			—			(399,154		)
	Sales and maturities of marketable securities	398,762			—			—			—			398,762			—			—			398,762
	Net advances to Parent	—			(596,004		)	(19,074		)	615,078			—			—			—			—
		(5,417		)	(757,300		)	(19,074		)	615,078			(166,713		)	(14,380		)	—			(181,093		)
	Cash flows from financing activities:
	Net repayments under credit agreement – HEP	—			—			—			—			—			(66,000		)	—			(66,000		)
	Redemption of senior notes	(300,973		)	—			—			—			(300,973		)	—			—			(300,973		)
	Proceeds from common unit offerings - HEP	73,444			—			—			—			73,444			73,444			—			146,888
	Purchase of treasury stock	(159,432		)	—			—			—			(159,432		)	—			—			(159,432		)
	Contribution from general partner	—			—			(1,499		)	—			(1,499		)	1,499			—			—
	Dividends	(264,867		)	—			—			—			(264,867		)	—			—			(264,867		)
	Distributions to noncontrolling interest	—			—			—			—			—			(69,419		)	34,815			(34,604		)
	Excess tax benefit from equity-based compensation	1,037			—			—			—			1,037			—			—			1,037
	Purchase of units for incentive grants - HEP	—			—			—			—			—			(2,934		)	—			(2,934		)
	Deferred financing costs and other	—			2,457			—			—			2,457			(273		)	—			2,184
	Net advances from subsidiaries	615,078			—			—			(615,078		)	—			—			—			—
		(35,713		)	2,457			(1,499		)	(615,078		)	(649,833		)	(63,683		)	34,815			(678,701		)
	Cash and cash equivalents
Increase (decrease) for the period:	(415,204		)	3,446			—			—			(411,758		)	3,479			—			(408,279		)
Beginning of period	1,748,808			3,652			2			—			1,752,462			5,237			—			1,757,699
End of period	$	1,333,604		$	7,098		$	2		$	—		$	1,340,704		$	8,716		$	—		$	1,349,420

Description_of_Business_and_Pr2

Description of Business and Presentation of Financial Statements (Details) (USD $)	6 Months Ended					3 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014
	mi	Twelve Inch Refined Products Pipeline Project	HEP [Member]	HEP [Member]	SLC Pipeline [Member]	UNEV Pipeline [Member]
	Petroleum_Refineries			SLC Pipeline [Member]
				mi
Ownership Interest By Project Type [Line Items]	'	'	'	'	'	'
Number of refineries located in Tulsa, Oklahoma	2	'	'	'	'	'
Refinery Distance From Main City [Miles]	65	'	'	'	'	'
Percentage of interest owned In pipeline project	'	'	'	'	'	75.00%
Description of pipeline acquired (inches)	'	'12	'	'	'	'
Percentage Of Interest Owned In Development Stage Biodiesel Production Facility	50.00%	'	'	'	'	'
Percentage of ownership in variable interest entity	'	'	39.00%	'	'	'
Percentage of general partner interest	'	'	2.00%	'	'	'
Equity Method Investment, Ownership Percentage	'	'	'	'	25.00%	'
Length of pipeline (miles)	'	'	'	95	'	'
Allowance for doubtful accounts reserve	$2.40	'	'	'	'	'

Holly_Energy_Partners_Details

Holly Energy Partners (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014
	Customers
Variable Interest Entity [Line Items]	'	'	'
Sale of Stock, Number of Shares Issued in Transaction	'	1,875,000	'
Proceeds from Issuance of Common Stock	'	73.4	'
HEP [Member]	'	'	'
Variable Interest Entity [Line Items]	'	'	'
Percentage of general partner interest	'	'	2.00%
Number of primary customers	2	'	'
Percentage of revenue Holly Corp represents	'	'	84.00%
Percentage of ownership in variable interest entity	'	'	39.00%
Annual contract payment	'	'	$228.70
Sale of Stock, Number of Shares Issued in Transaction	'	1,875,000	'

Variable_Interest_Entities_Sab

Variable Interest Entities Sabine Biofuels production facility (Details) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014
Variable Interest Entity [Line Items]	'
Percentage Of Interest Owned In Development Stage Biodiesel Production Facility	50.00%
Carrying Value of Interest Owned In Development Stage Biodiesel Production Facility	$10.60

Financial_Instruments_Estimate

Financial Instruments (Estimated Fair Values Of Debt Instruments) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	$864,752	$770,114
Derivative Liability, Fair Value, Gross Liability	588,734	721,732
Carrying Amount [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	864,752	770,114
Derivative Liability, Fair Value, Gross Liability	560,156	688,416
Level 1 [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	3,337	3,569
Level 2 [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	858,129	763,142
Derivative Liability, Fair Value, Gross Liability	503,137	675,873
Level 3 [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	6,623	6,972
Derivative Liability, Fair Value, Gross Liability	82,260	42,290
Marketable Securities [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	679,668	725,160
Marketable Securities [Member] | Carrying Amount [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	679,668	725,160
Marketable Securities [Member] | Level 2 [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	679,668	725,160
Nymex Futures Contracts [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	3,337	3,569
Nymex Futures Contracts [Member] | Carrying Amount [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	3,337	3,569
Nymex Futures Contracts [Member] | Level 1 [Member] | Carrying Amount [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	3,337	3,569
Nymex Futures Contracts [Member] | Level 2 [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	0	0
Commodity Price Swaps [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	184,250	43,284
Derivative Liability, Fair Value, Gross Liability	104,135	83,349
Commodity Price Swaps [Member] | Carrying Amount [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	184,250	43,284
Derivative Liability, Fair Value, Gross Liability	104,135	83,349
Commodity Price Swaps [Member] | Level 2 [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	177,627	36,312
Derivative Liability, Fair Value, Gross Liability	22,071	41,059
Commodity Price Swaps [Member] | Level 3 [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	6,623	6,972
Derivative Liability, Fair Value, Gross Liability	82,064	42,290
Forward Contracts [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	196	'
Forward Contracts [Member] | Carrying Amount [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	196	'
Forward Contracts [Member] | Level 3 [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	196	'
HEP Interest Rate Swap [Member] | HEP [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	834	1,670
Derivative Liability, Fair Value, Gross Liability	1,629	1,814
HEP Interest Rate Swap [Member] | Carrying Amount [Member] | HEP [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	834	1,670
Derivative Liability, Fair Value, Gross Liability	1,629	1,814
HEP Interest Rate Swap [Member] | Level 2 [Member] | HEP [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	834	1,670
Derivative Liability, Fair Value, Gross Liability	1,629	1,814
Senior Notes [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	159,187	161,250
Senior Notes [Member] | HEP [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	320,250	471,750
Senior Notes [Member] | Carrying Amount [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	154,606	155,054
Senior Notes [Member] | Carrying Amount [Member] | HEP [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	296,253	444,630
Senior Notes [Member] | Level 2 [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	159,187	161,250
Senior Notes [Member] | Level 2 [Member] | HEP [Member]	'	'
Debt Instrument [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	$320,250	$471,750

Financial_Instruments_Changes_

Financial Instruments (Changes in Level 3 Inputs) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Sep. 30, 2012
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'	'
Hypothetical change to estimated future cash flows attributable to commodity price swaps, percent	'	'	10.00%	'	'
Estimated change in fair value resulting from hypothetical percentage change in future cash flows attributable to commodity price swaps	'	'	$7,500,000	'	'
Commodity Contract [Member] | Level 3 [Member]	'	'	'	'	'
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'	'
Asset (liability) balance at beginning of period	-22,473,000	-6,249,000	-35,318,000	-33,658,000	37,126,000
Change in fair value recognized in other comprehensive income	-90,559,000	50,615,000	-112,695,000	1,413,000	'
Change in Fair Value Recognized in Cost of Product Sold	-7,084,000	3,662,000	1,885,000	47,222,000	'
Settlements Recognized in Sales and Other Revenues	48,942,000	-3,868,000	74,273,000	15,316,000	'
Settlements Recognized in Cost of Product Sold	-4,463,000	-7,034,000	-3,782,000	6,833,000	'
Asset (liability) balance at end of period	($75,637,000)	$37,126,000	($75,637,000)	$37,126,000	$37,126,000

Earnings_Per_Share_Schedule_Of

Earnings Per Share (Schedule Of Earnings Per Share) (Details) (USD $)	3 Months Ended				6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Earnings Per Share [Abstract]	'		'		'		'
Net income attributable to HollyFrontier stockholders	$176,429		$256,981		$328,490		$590,650
Participating Securities Share in Earnings	475		917		945		2,201
Net income attributable to common shares	$175,954		$256,064		$327,545		$588,449
Average number of shares of common stock outstanding	198,139,000		201,543,000		198,217,000		202,131,000
Effect of dilutive variable restricted shares and performance share units	241,000	[1]	362,000	[1]	191,000	[1]	354,000	[1]
Average number of shares of common stock outstanding assuming dilution	198,380,000		201,905,000		198,408,000		202,485,000
Basic earnings per share	$0.89		$1.27		$1.65		$2.91
Diluted earnings per share	$0.89		$1.27		$1.65		$2.91
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	26		232		2		248
[1]	(1) Excludes anti-dilutive restricted and performance share units of: 26B 232B 2B 248

StockBased_Compensation_Narrat

Stock-Based Compensation (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Share-based Compensation Expense	$6.80	$7.90	$12.20	$15.30
HEP [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Share-based Compensation Expense	$0.80	$0.80	$1.70	$1.90
Restricted Stock [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Total unrecognized compensation cost, weighted-average period of recognition, years	'	'	'1 year 2 months 13 days	'
Restricted Stock [Member] | Maximum [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Share-based Compensation Arrangement Vesting Period	'3 years	'	'	'
Performance Share Units Member	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Total unrecognized compensation cost, weighted-average period of recognition, years	'	'	'1 year 6 months	'
Performance Share Units Member | Maximum [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Share-based Compensation Arrangement Vesting Period	'	'	'3 years	'

StockBased_Compensation_Summar

Stock-Based Compensation (Summary Of Restricted Stock Activity) (Details) (Restricted Stock [Member], USD $)	6 Months Ended
	Jun. 30, 2014
Restricted Stock [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	'1 year 2 months 13 days
Total unrecognized compensation cost related to non-vested grants	$13,100,000
Fair value of restricted stock vested	3,500,000
Outstanding at January 1, 2014 (non-vested)	737,562
Granted	70,243
Vesting (transfer/conversion to common stock)	-103,586
Forfeited	-72,697
Outstanding at June 30, 2014 (non-vested)	631,522
Outstanding at January 1, 2014 (non-vested), Weighted Average Grant Date Fair Value	$39.54
Granted, Weighted Average Grant Date Fair Value	$48.22
Vesting and transfer of ownership to recipients, Weighted Average Grant Date Fair Value	$33.71
Forfeited, Weighted Average Grant Date Fair Value, per share	$42.24
Outstanding at March 31, 2014 (non-vested), Weighted Average Grant Date Fair Value	$41.15
Aggregate Intrinsic Value	$27,591,000

StockBased_Compensation_Summar1

Stock-Based Compensation (Summary Of Performance Share Unit Activity) (Details) (USD $)	3 Months Ended	6 Months Ended
In Millions, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2014
Performance Shares [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Common Stock, Shares, Issued	'	172,231
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	'	$5.90
Performance Share Units Member	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$19.50	$19.50
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	'	'1 year 6 months
Outstanding at January 1, 2014 (non-vested)	'	983,610
Granted	'	26,493
Vesting and transfer of ownership to recipients	'	-181,290
Forfeited	'	-108,182
Outstanding at June 30, 2014 (non-vested)	720,631	720,631
Percentage Of Share Units Awarded Ultimately Issued	95.00%	'
Current Estimated Percentage Of Share Units Awarded Ultimately Issued	'	100.00%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	'	$40.55
Performance Share Units Member | Maximum [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Share-based Compensation Expense	'	'3 years
Percentage Of Share Units Awarded Ultimately Issued	'	200.00%
Performance Share Units Member | Minimum [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Percentage Of Share Units Awarded Ultimately Issued	'	0.00%

Cash_and_Cash_Equivalents_and_2

Cash and Cash Equivalents and Investments in Marketable Securities (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'
Maximum term to maturity from date of purchase (years)	'1 year	'	'	'
Total Marketable Securities [Member]	'	'	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'
Investment Income, interest income on Marketable Securities	$0.60	$0.60	$1.20	$1.10

Cash_and_Cash_Equivalents_and_3

Cash and Cash Equivalents and Investments in Marketable Securities (Available-For-Sale Securities) (Details) (USD $)	6 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Certificates of Deposit [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Available-for-Sale Securities, Amortized Cost	$79,704	$74,802
Available-for-Sale Securities, Gross Unrealized Gain	15	21
Available-for-sale Securities, Gross Unrealized Losses	-3	-1
Available-for-sale Securities, Fair Value (Net Carrying Amount)	79,716	74,822
Commercial Paper [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Available-for-Sale Securities, Amortized Cost	76,670	78,216
Available-for-Sale Securities, Gross Unrealized Gain	16	28
Available-for-sale Securities, Gross Unrealized Losses	0	0
Available-for-sale Securities, Fair Value (Net Carrying Amount)	76,686	78,244
Corporate Debt Securities [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Available-for-Sale Securities, Amortized Cost	146,455	96,889
Available-for-Sale Securities, Gross Unrealized Gain	34	6
Available-for-sale Securities, Gross Unrealized Losses	-18	-44
Available-for-sale Securities, Fair Value (Net Carrying Amount)	146,471	96,851
US States and Political Subdivisions Debt Securities [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Available-for-Sale Securities, Amortized Cost	376,789	475,235
Available-for-Sale Securities, Gross Unrealized Gain	29	49
Available-for-sale Securities, Gross Unrealized Losses	-23	-41
Available-for-sale Securities, Fair Value (Net Carrying Amount)	376,795	475,243
Total Marketable Securities [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Available-for-Sale Securities, Amortized Cost	679,618	725,142
Available-for-Sale Securities, Gross Unrealized Gain	94	104
Available-for-sale Securities, Gross Unrealized Losses	-44	-86
Available-for-sale Securities, Fair Value (Net Carrying Amount)	$679,668	$725,160

Inventories_Details

Inventories (Details) (USD $)	Jun. 30, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Inventories	'		'
Crude oil	$628,215		$567,281
Other raw materials and unfinished products	186,892	[1]	154,534	[1]
Finished products	609,453	[2]	519,633	[2]
Process chemicals	4,470	[3]	3,504	[3]
Repairs and maintenance supplies and other	75,802		109,295
Inventories, total	$1,504,832		$1,354,247
[1]	Other raw materials and unfinished products include feedstocks and blendstocks, other than crude.
[2]	Finished products include gasolines, jet fuels, diesels, lubricants, asphalts, LPGbs and residual fuels.
[3]	Process chemicals include additives and other chemicals.

Environmental_Details

Environmental (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Loss Contingencies [Line Items]	'	'	'	'	'
Environmental remediation costs	$1	$0.60	$1.30	$0.80	'
Accrued environmental liability	84.5	'	84.5	'	87.8
Estimated time frame to remediate contigency	'	'	'30	'	'
Other Long Term Liabilities [Member]	'	'	'	'	'
Loss Contingencies [Line Items]	'	'	'	'	'
Accrued environmental liability	$69.50	'	$69.50	'	$73.60

Debt_Narrative_Details

Debt (Narrative) (Details) (USD $)

3 Months Ended

6 Months Ended

6 Months Ended

3 Months Ended

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Dec. 31, 2013

Jul. 01, 2014

Jun. 30, 2014

Jun. 30, 2014

Mar. 31, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

6.875% Senior Notes Due 2018 [Member]

6.875% Senior Notes Due 2018 [Member]

Holly Frontier Credit Agreement [Member]

Holly Frontier Credit Agreement [Member]

Plains [Member]

HEP [Member]

HEP [Member]

HEP [Member]

HEP [Member]

HEP [Member]

HEP [Member]

HEP [Member]

HEP [Member]

Lease [Member]

8.25% Senior Notes Due 2018 [Member]

8.25% Senior Notes Due 2018 [Member]

8.25% Senior Notes Due 2018 [Member]

6.5% Senior Notes Due 2020 [Member]

6.5% Senior Notes Due 2020 [Member]

Letter of Credit [Member]

Holly Energy Partners Credit Agreement [Member]

Holly Energy Partners Credit Agreement [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum borrowing capacity under revolving credit agreement

'

'

'

'

'

'

$1,000,000,000

$1,000,000,000

'

'

'

'

'

'

$50,000,000

$650,000,000

'

Letters of Credit Outstanding, Amount

'

'

'

'

'

'

'

4,500,000

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Capacity Available for Swingline Loans

'

'

'

'

'

'

'

100,000,000

'

'

'

'

'

'

'

'

'

Borrowings outstanding under revolving credit agreement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

543,000,000

363,000,000

Stated interest rate, senior notes

'

9.88%

'

9.88%

6.88%

'

'

'

'

8.25%

'

'

6.50%

'

'

'

'

Extinguishment of Debt, Amount

'

'

'

301,000,000

'

'

'

'

'

156,200,000

'

'

'

'

'

'

'

Gains (Losses) on Extinguishment of Debt

0

22,109,000

7,677,000

22,109,000

'

'

'

'

'

-7,700,000

'

'

'

'

'

'

'

Redemption Premium

'

'

'

14,200,000

'

'

'

'

'

6,200,000

'

'

'

'

'

'

'

Amortization of Financing Costs and Discounts

'

'

'

7,900,000

'

'

'

'

'

1,500,000

'

'

'

'

'

'

'

Senior notes

'

'

'

'

150,000,000

150,000,000

'

'

'

'

0

150,000,000

300,000,000

300,000,000

'

'

'

Debt Instrument, Face Amount

'

286,800,000

'

286,800,000

'

'

'

'

'

150,000,000

'

'

'

'

'

'

'

Proceeds from sale of storage assets

'

'

'

'

'

'

'

'

40,000,000

'

'

'

'

'

'

'

'

Term of lease, years

'

'

'

'

'

'

'

'

'15 years

'

'

'

'

'

'

'

'

Interest Costs Capitalized

$3,100,000

$3,000,000

$6,000,000

$6,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt_Carrying_Amounts_Of_LongT

Debt (Carrying Amounts Of Long-Term Debt) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Total long-term debt	$1,027,885	$997,519
Holly Corporation [Member]	'	'
Debt Instrument [Line Items]	'	'
Total long-term debt	188,632	189,889
6.875% Senior Notes Due 2018 [Member]	'	'
Debt Instrument [Line Items]	'	'
Principal	150,000	150,000
Unamortized Premium	4,606	5,054
Long-term debt carrying amount	154,606	155,054
Holly Financing Obligation [Member]	'	'
Debt Instrument [Line Items]	'	'
Financing obligation	34,026	34,835
HEP [Member]	'	'
Debt Instrument [Line Items]	'	'
Total HEP long-term debt	839,253	807,630
Total long-term debt	839,253	807,630
HEP [Member] | Holly Energy Partners Credit Agreement [Member]	'	'
Debt Instrument [Line Items]	'	'
HEP Credit Agreement	543,000	363,000
HEP [Member] | 8.25% Senior Notes Due 2018 [Member]	'	'
Debt Instrument [Line Items]	'	'
Principal	0	150,000
Unamortized discount	0	-1,297
Long-term debt carrying amount	0	148,703
HEP [Member] | 6.5% Senior Notes Due 2020 [Member]	'	'
Debt Instrument [Line Items]	'	'
Principal	300,000	300,000
Unamortized discount	-3,747	-4,073
Long-term debt carrying amount	$296,253	$295,927

Derivative_Instruments_And_Hed2

Derivative Instruments And Hedging Activities (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Derivative [Line Items]	'	'	'	'
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Period	'1 year	'	'	'
Gain (loss) on economic hedges	$24,572,000	($1,531,000)	$24,594,000	($30,130,000)
Net unrealized gain in accumulated other comprehensive income related to accounting hedges	'	'	77,500,000	'
Net unrealized gain to be transferred from accumulated other comprehensive income to statement of income	'	'	81,900,000	'
Cost of Products Sold [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Gain (loss) on economic hedges	24,432,000	-1,839,000	24,406,000	-35,431,000
Operating Expense [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Gain (loss) on economic hedges	140,000	308,000	188,000	5,301,000
HEP [Member] | Interest Rate Contract [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Credit agreement advance	305,000,000	'	305,000,000	'
Credit agreement advance maturing in 2016	155,000,000	'	155,000,000	'
Fixed interest rate	0.74%	'	0.74%	'
Rate added to fixed base rate	2.00%	'	2.00%	'
Effective interest rate on debt	2.74%	'	2.74%	'
Credit agreement advance maturing in 2017	$150,000,000	'	$150,000,000	'
HEP [Member] | Current Interest Rate Swap [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Fixed interest rate	0.99%	'	0.99%	'
Effective interest rate on debt	2.99%	'	2.99%	'

Derivative_Instruments_And_Hed3

Derivative Instruments And Hedging Activities (Summary Of Balance Sheet Locations And Related Fair Values Of Outstanding Derivative Instruments) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Derivative [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	$864,752	$770,114
Derivative designated as cash flow hedging instrument asset - gross liability	-72,966	'
Derivative designated as cash flow hedging instrument asset - net asset	84,772	1,670
Derivative Instrument Not Designated as Cash Flow Hedging Instrument Asset - net Asset	3,252	6,972
Derivative designated as Cash Flow Hedging Instrument Liability - Net Liability	4,746	41,696
Derivative Instrument not Designated as Cash Flow Hedging Instrument Asset - Gross Asset	5,961	6,972
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	588,734	721,732
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	-16,448	-23,679
Derivative Not Designated as Cash Flow Hedging Instruments Liability - Gross Asset	-4,937	-12,611
Derivative Not Designated as Cash Flow Hedging Instruments Liability - Net Liability	7,491	10,724
Derivative Instruments Assets - Net Asset	88,024	8,642
Derivative Instruments Liabilities - Net Liabilities Classified as Current	3,337	26,843
Derivative Instruments Liabilities - Net Liabilities Classified as Noncurrent	8,900	25,577
Derivative Instruments Liabilities Classified as Liabilities	12,237	52,420
Commodity Contract [Member]	'	'
Derivative [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	156,904	'
Derivative Instrument Not Designated as Cash Flow Hedging Instrument Liability - Gross Liability	9,091	19,766
Derivative designated as cash flow hedging instrument asset - gross liability	-72,770	'
Derivative designated as cash flow hedging instrument asset - net asset	84,134	'
Derivative Instrument Not Designated as Cash Flow Hedging Instrument Asset - net Asset	3,252	6,972
Derivative designated as Cash Flow Hedging Instrument Liability - Net Liability	3,117	39,882
Derivative Instrument not Designated as Cash Flow Hedging Instrument Asset - Gross Asset	5,961	6,972
Derivative Instrument not Designated as Cash Flow Hedging Instrument Asset - Gross Liability	-2,709	'
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	19,565	63,561
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	-16,448	-23,679
Derivative Not Designated as Cash Flow Hedging Instruments Liability - Gross Asset	-4,937	-12,611
Derivative Not Designated as Cash Flow Hedging Instruments Liability - Net Liability	4,154	7,155
HEP Interest Rate Swap [Member]	'	'
Derivative [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	834	1,670
Derivative designated as cash flow hedging instrument asset - net asset	834	1,670
Derivative designated as Cash Flow Hedging Instrument Liability - Net Liability	1,629	1,814
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	1,629	1,814
Derivative Financial Instruments, Assets [Member]	'	'
Derivative [Line Items]	'	'
Derivative Instrument not Designated as Cash Flow Hedging Instrument Asset - Gross Liability	-2,709	'
Derivative Financial Instruments, Liabilities [Member]	'	'
Derivative [Line Items]	'	'
Derivative Instrument Not Designated as Cash Flow Hedging Instrument Liability - Gross Liability	12,428	23,335
Nymex Futures Contracts [Member]	'	'
Derivative [Line Items]	'	'
Derivative Instrument Not Designated as Cash Flow Hedging Instrument Liability - Gross Liability	3,337	3,569
Derivative Not Designated as Cash Flow Hedging Instruments Liability - Net Liability	3,337	3,569
Prepayments And Other [Member]	'	'
Derivative [Line Items]	'	'
Derivative Instruments Assets - Net Asset	85,660	6,972
Other Intangible Assets [Member]	'	'
Derivative [Line Items]	'	'
Derivative Instruments Assets - Net Asset	2,364	1,670
Forward Contracts [Member]	'	'
Derivative [Line Items]	'	'
Derivative designated as cash flow hedging instrument asset - gross liability	-196	'
Derivative designated as cash flow hedging instrument asset - net asset	-196	'
Derivative Financial Instruments, Liabilities [Member]	'	'
Derivative [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	21,194	65,375
Derivative Financial Instruments, Assets [Member]	'	'
Derivative [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	$157,738	$1,670

Derivative_Instruments_And_Hed4

Derivative Instruments And Hedging Activities Notional Contracts by Derivative Type (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014
economic hedges by derivative type [Line Items]	'
Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss) before Taxes	$3.80
Commodity WCS Spread [Member]	'
economic hedges by derivative type [Line Items]	'
Portion of Future Oil and Gas Production Being Hedged	3,220,000
Natural Gas - long [Member]	'
economic hedges by derivative type [Line Items]	'
Portion Of Future Gas Production Being Hedged	33,600,000
Portion of future gas production hedged for price risk	33,600,000
Natural Gas - Short [Member]	'
economic hedges by derivative type [Line Items]	'
Portion Of Future Gas Production Being Hedged	33,600,000
Commodity WTI short [Member]	'
economic hedges by derivative type [Line Items]	'
Portion of Future Oil and Gas Production Being Hedged	2,935,000
WTI Crude Oil [Member]	'
economic hedges by derivative type [Line Items]	'
Portion of oil and gas production hedged for price risk	18,456,000
Ultra Low Sulfur Diesel Member	'
economic hedges by derivative type [Line Items]	'
Portion of oil and gas production hedged for price risk	11,832,000
Sub octane gasoline - short [Member]	'
economic hedges by derivative type [Line Items]	'
Portion of oil and gas production hedged for price risk	6,624,000
Gasoline And Diesel Member	'
economic hedges by derivative type [Line Items]	'
Portion of oil and gas production hedged for price risk	100,000
Maturing in next twelve months [Member] | Commodity WCS Spread [Member]	'
economic hedges by derivative type [Line Items]	'
Portion of Future Oil and Gas Production Being Hedged	3,220,000
Maturing in next twelve months [Member] | Natural Gas - long [Member]	'
economic hedges by derivative type [Line Items]	'
Portion Of Future Gas Production Being Hedged	4,800,000
Portion of future gas production hedged for price risk	4,800,000
Maturing in next twelve months [Member] | Natural Gas - Short [Member]	'
economic hedges by derivative type [Line Items]	'
Portion Of Future Gas Production Being Hedged	4,800,000
Maturing in next twelve months [Member] | Commodity WTI short [Member]	'
economic hedges by derivative type [Line Items]	'
Portion of Future Oil and Gas Production Being Hedged	2,935,000
Maturing in next twelve months [Member] | WTI Crude Oil [Member]	'
economic hedges by derivative type [Line Items]	'
Portion of oil and gas production hedged for price risk	14,076,000
Maturing in next twelve months [Member] | Ultra Low Sulfur Diesel Member	'
economic hedges by derivative type [Line Items]	'
Portion of oil and gas production hedged for price risk	7,452,000
Maturing in next twelve months [Member] | Sub octane gasoline - short [Member]	'
economic hedges by derivative type [Line Items]	'
Portion of oil and gas production hedged for price risk	6,624,000
Maturing in next twelve months [Member] | Gasoline And Diesel Member	'
economic hedges by derivative type [Line Items]	'
Portion of oil and gas production hedged for price risk	100,000
Maturing in year two [Member] | Natural Gas - long [Member]	'
economic hedges by derivative type [Line Items]	'
Portion Of Future Gas Production Being Hedged	9,600,000
Portion of future gas production hedged for price risk	9,600,000
Maturing in year two [Member] | Natural Gas - Short [Member]	'
economic hedges by derivative type [Line Items]	'
Portion Of Future Gas Production Being Hedged	9,600,000
Maturing in year two [Member] | WTI Crude Oil [Member]	'
economic hedges by derivative type [Line Items]	'
Portion of oil and gas production hedged for price risk	4,380,000
Maturing in year two [Member] | Ultra Low Sulfur Diesel Member	'
economic hedges by derivative type [Line Items]	'
Portion of oil and gas production hedged for price risk	4,380,000
Maturing in year three [Member] | Natural Gas - long [Member]	'
economic hedges by derivative type [Line Items]	'
Portion Of Future Gas Production Being Hedged	9,600,000
Portion of future gas production hedged for price risk	9,600,000
Maturing in year three [Member] | Natural Gas - Short [Member]	'
economic hedges by derivative type [Line Items]	'
Portion Of Future Gas Production Being Hedged	9,600,000
Maturing in year four [Member] | Natural Gas - long [Member]	'
economic hedges by derivative type [Line Items]	'
Portion Of Future Gas Production Being Hedged	9,600,000
Portion of future gas production hedged for price risk	9,600,000
Maturing in year four [Member] | Natural Gas - Short [Member]	'
economic hedges by derivative type [Line Items]	'
Portion Of Future Gas Production Being Hedged	9,600,000

Derivative_Instruments_And_Hed5

Derivative Instruments And Hedging Activities Interest Rate Swaps (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Derivative [Line Items]	'	'	'	'
Amortization of unrealized loss attributable to discontinued cash flow hedges	$270	$270	$540	$1,209
Derivative Instruments, Gain (Loss) Recognized in Income	12,374	5,803	17,326	-22,840
Interest Expense	10,136	19,794	22,483	41,114
Other Comprehensive Income (Loss), Change in Fair Value of Cash Flow Hedge	46,689	27,661	138,724	17,315
HEP [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
(Gain) Loss Reclassified to Earnings Due to Settlements	553	516	1,091	1,020
Amortization of unrealized loss attributable to discontinued cash flow hedges	'	'	'	849
Derivative Instruments, Gain (Loss) Recognized in Income	-553	-516	-1,091	-1,869
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	-746	3,413	-651	4,824
Other Comprehensive Income (Loss), Change in Fair Value of Cash Flow Hedge	-1,299	2,897	-1,742	2,955
HEP Interest Rate Swap [Member] | HEP [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Derivative Instruments, Gain (Loss) Recognized in Income	-553	-516	'	'
Interest Expense [Member] | HEP [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Derivative Instruments, Gain (Loss) Recognized in Income	($553)	($516)	($1,091)	($1,869)

Derivative_Instruments_And_Hed6

Derivative Instruments And Hedging Activities Location of Gain Loss in Income Statement (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Gain (Loss) on Economic Hedges, Net	($24,572)	$1,531	($24,594)	$30,130
Cost of Sales [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Gain (Loss) on Economic Hedges, Net	-24,432	1,839	-24,406	35,431
Operating Expense [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Gain (Loss) on Economic Hedges, Net	($140)	($308)	($188)	($5,301)

Derivative_Instruments_And_Hed7

Derivative Instruments And Hedging Activities Derivatives and Hedging Instruments Gains Losses due to Settlements Hedge Ineffectiveness (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Trading Activity, Gains and Losses, Net [Line Items]	'	'	'	'
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	$1,354	($783)	($806)	$1,627
Derivative Instruments, change in fair value	35,061	18,445	122,049	35,331
Gain (Loss) on Fair Value Hedges Recognized in Earnings	12,927	6,319	18,417	-20,971
Cost of Sales [Member]	'	'	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'	'	'
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	'	-1,439	'	1,692
Gain (Loss) on Fair Value Hedges Recognized in Earnings	61,124	1,930	90,441	-4,603
Operating Expense [Member]	'	'	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'	'	'
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	1,354	106	-806	-259
Gain (Loss) on Fair Value Hedges Recognized in Earnings	745	521	2,249	-1,052
Sales and other revenues [Member]	'	'	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'	'	'
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	'	550	'	194
Gain (Loss) on Fair Value Hedges Recognized in Earnings	-48,942	3,868	-74,273	-15,316
Commodity Contract [Member]	'	'	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'	'	'
Derivative Instruments, change in fair value	47,988	24,764	140,466	14,360
(Gain) Loss Reclassified to Earnings Due to Settlements	-13,197	-6,589	-18,957	20,611
Amortization Of Discontinued Hedges Reclassified to Earnings	$270	$270	$540	$360

Equity_Changes_To_Equity_Detai

Equity (Changes To Equity) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014		Jun. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'		'
Shares Paid for Tax Withholding for Share Based Compensation	'	'	92,048		'
Balance at December 31, 2013	'	'	$5,999,620		'
Net income	185,153	265,749	349,115		609,120
Other comprehensive income, after tax	20,923	31,813	74,223		44,364
Remaining stock repurchase authorization	'	'	'311571488		'
Balance at June 30, 2014	6,073,532	'	6,073,532		'
Holly Corporation Stockholders' Equity [Member]	'	'	'		'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'		'
Balance at December 31, 2013	'	'	5,999,620		'
Net income	'	'	328,490		'
Dividends	'	'	-323,121		'
Distributions to noncontrolling interest holders	'	'	0		'
Other comprehensive income, after tax	'	'	74,618		'
Equity-based compensation	'	'	12,188		'
Excess tax benefit attributable to equity-based compensation	'	'	3,778		'
Purchase of treasury stock	'	'	-22,041	[1]	'
Purchase of HEP units for restricted grants	'	'	0		'
Other	'	'	0		'
Balance at June 30, 2014	6,073,532	'	6,073,532		'
Noncontrolling Interest [Member]	'	'	'		'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'		'
Balance at December 31, 2013	'	'	609,778		'
Net income	'	'	20,625		'
Dividends	'	'	0		'
Distributions to noncontrolling interest holders	'	'	-38,548		'
Other comprehensive income, after tax	'	'	-395		'
Equity-based compensation	'	'	1,658		'
Excess tax benefit attributable to equity-based compensation	'	'	0		'
Purchase of treasury stock	'	'	0	[1]	'
Purchase of HEP units for restricted grants	'	'	-406		'
Other	'	'	375		'
Balance at June 30, 2014	593,087	'	593,087		'
Total Equity [Member]	'	'	'		'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'		'
Balance at December 31, 2013	'	'	6,609,398		'
Net income	'	'	349,115		'
Dividends	'	'	-323,121		'
Distributions to noncontrolling interest holders	'	'	-38,548		'
Other comprehensive income, after tax	'	'	74,223		'
Equity-based compensation	'	'	13,846		'
Excess tax benefit attributable to equity-based compensation	'	'	3,778		'
Purchase of treasury stock	'	'	-22,041	[1]	'
Purchase of HEP units for restricted grants	'	'	-406		'
Other	'	'	375		'
Balance at June 30, 2014	$6,666,619	'	$6,666,619		'
[1]	Includes 92,048 shares withheld under the terms of stock-based compensation agreements to provide funds for the payment of payroll and income taxes due at the vesting of share-based awards.

Other_Comprehensive_Income_Los2

Other Comprehensive Income (Loss) (Components And Allocated Tax Effects Of Other Comprehensive Income (Loss)) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Other Comprehensive Income (Loss) [Abstract]	'	'	'	'
Net unrealized gain (loss) on marketable securities	$25	($45)	$36	($29)
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax	17	-36	14	-28
Net unrealized gain on hedging instruments	34,315	21,858	121,398	40,155
Net change in post-retirement benefit obligations	0	0	89	0
Other comprehensive income (loss)	34,340	50,799	121,345	70,838
Less other comprehensive income attributable to noncontrolling interest	-453	1,940	-395	2,733
Other Comprehensive Income (Loss) attributable to HollyFrontier stockholders	34,793	48,859	121,740	68,105
Net unrealized gain (loss) on hedging instruments, tax expense (benefit)	13,400	7,747	47,143	14,556
Net change in post-retirement benefit obligations, tax expense (benefit)	'	11,275	-35	11,946
Other comprehensive income, tax expense	13,417	18,986	47,122	26,474
Other comprehensive income attributable to HollyFrontier stockholders, tax expense (benefit)	13,417	18,986	47,122	26,474
Net unrealized gain on marketable securities, after tax	8	-9	22	-1
Net unrealized gain (loss) on hedging instruments, after tax	20,915	14,111	74,255	25,599
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax	'	28,986	'	30,712
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax	0	28,986	-89	30,712
Net Change in Post-retirement Benefit Obligations, After Tax	'	17,711	-54	18,766
Other comprehensive income, after tax	20,923	31,813	74,223	44,364
Less other comprehensive income attributable to noncontrolling interest, after tax	-453	1,940	-395	2,733
Other comprehensive income (loss) attributable to HollyFrontier stockholders, after tax	$21,376	$29,873	$74,618	$41,631

Other_Comprehensive_Income_Los3

Other Comprehensive Income (Loss) (Accumulated Other Comprehensive Loss In Equity) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Marketable securities	$0	$6	$1	$3
Marketable securities - income tax	0	2	'	1
Gain on Sale of Marketable Securities, Net of Tax	0	4	1	2
Gain (Loss) on Hedging Instruments, Net, Pretax	12,374	5,803	17,326	-22,840
Gain (Loss) on Sale of Derivatives, Income Tax	4,918	2,379	6,961	-8,444
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	'	'	-1,091	-1,869
Gain (Loss) on Hedging Instruments, Net	7,456	3,424	10,365	-14,396
Gain (Loss) on Hedging Instruments - Noncontrolling Interest	335	313	661	1,133
Gain (Loss) on Hedging Instruments - After Tax and NC Interests	7,791	3,737	11,026	-13,263
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, before Tax	0	-28,986	0	-28,986
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, Tax	'	-11,275	'	-11,275
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, Net of Tax	'	-17,711	'	-17,711
Other Comprehensive Income Loss Post-retirement Healthcare Reclassified Before Tax	'	'	'	1,726
Other Post-retirement Healthcare Obligation Reclassified, Tax	'	'	'	671
Net change in post-retirement benefit obligations	0	-28,986	89	-30,712
Net Change in Post-retirement Benefit Obligations, Income Tax	'	-11,275	35	-11,946
Other Comprehensive Income (Loss) Post-retirement Benefits Reclassified, Net of Tax	'	'	'	1,055
Net change in Post-retirement Benefit Obligations, After Tax	'	-17,711	54	-18,766
Other Comprehensive Income (Loss), Reclassifications to Income, Net of Tax	7,791	-13,970	11,027	-32,027
Cost of Sales [Member]	'	'	'	'
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, before Tax	'	-2,460	'	-2,460
Other Comprehensive Income Loss Post-retirement Healthcare Reclassified Before Tax	'	'	'	84
Operating Expense [Member]	'	'	'	'
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, before Tax	'	-23,260	'	-23,260
Other Comprehensive Income Loss Post-retirement Healthcare Reclassified Before Tax	'	'	'	1,549
General and Administrative Expense [Member]	'	'	'	'
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, before Tax	'	-3,266	'	-3,266
Other Comprehensive Income Loss Post-retirement Healthcare Reclassified Before Tax	'	'	'	93
HEP [Member]	'	'	'	'
Gain (Loss) on Hedging Instruments, Net, Pretax	-553	-516	-1,091	-1,869
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, before Tax	0	'	'	'
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, Tax	0	'	'	'
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, Net of Tax	0	'	'	'
Commodity Contract [Member] | Sales and other revenues [Member]	'	'	'	'
Gain (Loss) on Hedging Instruments, Net, Pretax	-48,942	3,868	-74,273	-15,316
Commodity Contract [Member] | Cost of Sales [Member]	'	'	'	'
Gain (Loss) on Hedging Instruments, Net, Pretax	61,124	1,930	90,441	-4,603
Commodity Contract [Member] | Operating Expense [Member]	'	'	'	'
Gain (Loss) on Hedging Instruments, Net, Pretax	745	521	2,249	-1,052
HEP Interest Rate Swap [Member] | HEP [Member]	'	'	'	'
Gain (Loss) on Hedging Instruments, Net, Pretax	($553)	($516)	'	'

Other_Comprehensive_Income_Los4

Other Comprehensive Income (Loss) Other Comprehensive Income Balance Components (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Statement of Comprehensive Income [Abstract]	'	'
Unrealized gain on post-retirement benefit obligations	$27,637	$27,691
Unrealized gain on marketable securities	32	10
Unrealized gain (loss) on hedging activities, net of noncontrolling interest	47,771	-26,879
Accumulated other comprehensive income	$75,440	$822

Retirement_Plan_Narrative_Deta

Retirement Plan (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	'	$30,893,000	'	'
Net change in post-retirement benefit obligations	0	28,986,000	0	28,986,000
Pension Plans, Defined Benefit [Member]	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Defined Benefit Plan, Transition Costs	$2,900,000	$2,900,000	$5,500,000	$5,800,000

Retirement_Plan_Net_Periodic_P

Retirement Plan (Net Periodic Pension Expense) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Loss on settlement	$0	($28,986)	$0	($28,986)
Other Post-Retirement Healthcare and Other Benefits Plan [Member]	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Service cost - benefit earned during the period	224	278	448	556
Interest cost on projected benefit obligations	160	159	319	318
Amortization of prior service cost	-1,074	-1,474	-2,148	-2,948
Amortization of net loss	0	31	0	62
Loss on settlement	0	0	0	1,726
Net periodic post-retirement expense (credit)	($690)	($1,006)	($1,381)	($286)

Segment_Information_Narrative_

Segment Information (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment Reporting Information [Line Items]	'	'	'	'
Reportable segments	2	'	2	'
Other Revenue, Net	$10.50	$12.10	$25.70	$24.90

Segment_Information_Schedule_O

Segment Information (Schedule Of Segment Reporting Information) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales and other revenues	$5,372,600	$5,298,848	$10,163,653	$10,006,637	'
Depreciation and amortization	101,390	70,492	181,938	142,254	'
Income (loss) from operations	296,345	460,006	567,341	1,009,201	'
Capital expenditures	120,488	98,839	244,769	170,803	'
Cash, Cash Equivalents, And Total Investments In Marketable Securities	1,797,970	'	1,797,970	'	1,665,263
Total assets	10,458,383	'	10,458,383	'	10,056,739
Long-term Debt	1,027,885	'	1,027,885	'	997,519
Refining [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales and other revenues	5,361,914	5,286,881	10,136,994	9,979,307	'
Depreciation and amortization	83,840	53,443	147,381	110,613	'
Income (loss) from operations	292,214	458,777	543,423	1,000,979	'
Capital expenditures	92,334	74,866	192,277	138,498	'
Cash, Cash Equivalents, And Total Investments In Marketable Securities	3,794	'	3,794	'	1,860
Total assets	7,442,830	'	7,442,830	'	7,094,558
Long-term Debt	0	'	0	'	0
Corporate And Other [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales and other revenues	506	234	1,621	797	'
Depreciation and amortization	2,280	1,637	4,310	2,687	'
Income (loss) from operations	-27,802	-32,646	-53,357	-58,618	'
Capital expenditures	9,976	12,125	13,710	15,444	'
Cash, Cash Equivalents, And Total Investments In Marketable Securities	1,788,110	'	1,788,110	'	1,657,051
Total assets	1,905,000	'	1,905,000	'	1,881,119
Long-term Debt	188,632	'	188,632	'	189,889
Consolidations And Eliminations [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales and other revenues	-64,844	-63,388	-136,998	-125,072	'
Depreciation and amortization	-207	-207	-414	-414	'
Income (loss) from operations	-531	-517	-1,054	-1,026	'
Capital expenditures	0	0	0	0	'
Cash, Cash Equivalents, And Total Investments In Marketable Securities	0	'	0	'	0
Total assets	-306,399	'	-306,399	'	-332,846
Long-term Debt	0	'	0	'	0
HEP [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales and other revenues	75,024	75,121	162,036	151,605	'
Depreciation and amortization	15,477	15,619	30,661	29,368	'
Income (loss) from operations	32,464	34,392	78,329	67,866	'
Capital expenditures	18,178	11,848	38,782	16,861	'
Cash, Cash Equivalents, And Total Investments In Marketable Securities	6,066	'	6,066	'	6,352
Total assets	1,416,952	'	1,416,952	'	1,413,908
Long-term Debt	$839,253	'	$839,253	'	$807,630

Supplemental_GuarantorNonGuara2

Supplemental Guarantor/Non-Guarantor Financial Information (Narrative) (Details) (HEP [Member])	6 Months Ended
	Jun. 30, 2014
HEP [Member]	'
Guarantor Obligations [Line Items]	'
Percentage of ownership in variable interest entity	39.00%

Supplemental_GuarantorNonGuara3

Supplemental Guarantor/Non-Guarantor Financial Information Consolidating Balance Sheet (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	$1,118,302	$940,103	$1,349,420	$1,757,699
Marketable securities	679,668	725,160	'	'
Accounts receivable, net	780,180	708,802	'	'
Intercompany accounts receivable	0	0	'	'
Inventories	1,504,832	1,354,247	'	'
Income taxes receivable	18,875	109,376	'	'
Prepayments and other	134,274	58,756	'	'
Total current assets	4,236,131	3,896,444	'	'
Properties, plants and equipment, net	3,492,743	3,394,596	'	'
Marketable securities (long-term)	0	'	'	'
Investment in subsidiaries	0	0	'	'
Intangibles and other assets	2,729,509	2,765,699	'	'
Total assets	10,458,383	10,056,739	'	'
Accounts payable	1,624,953	1,325,376	'	'
Intercompany accounts payable	0	0	'	'
Accrued liabilities	125,761	125,115	'	'
Deferred income tax liabilities	216,981	223,999	'	'
Total current liabilities	1,967,695	1,674,490	'	'
Long-term debt	1,027,885	997,519	'	'
Liability to HEP	0	0	'	'
Deferred income tax liabilities	657,465	616,842	'	'
Other long-term liabilities	138,719	158,490	'	'
Investment in HEP	0	0	'	'
Equity b HollyFrontier	6,073,532	5,999,620	'	'
Equity b noncontrolling interest	593,087	609,778	'	'
Total liabilities and equity	10,458,383	10,056,739	'	'
Parent Company [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	1,108,232	931,920	1,333,604	1,748,808
Marketable securities	679,668	725,160	'	'
Accounts receivable, net	6,070	6,095	'	'
Intercompany accounts receivable	0	0	'	'
Inventories	0	0	'	'
Income taxes receivable	18,875	109,376	'	'
Prepayments and other	16,345	21,843	'	'
Total current assets	1,829,190	1,794,394	'	'
Properties, plants and equipment, net	32,537	30,007	'	'
Marketable securities (long-term)	0	'	'	'
Investment in subsidiaries	6,410,993	5,722,025	'	'
Intangibles and other assets	24,535	23,034	'	'
Total assets	8,297,255	7,569,460	'	'
Accounts payable	14,406	16,704	'	'
Intercompany accounts payable	1,085,461	463,530	'	'
Accrued liabilities	43,581	43,254	'	'
Deferred income tax liabilities	216,981	223,999	'	'
Total current liabilities	1,360,429	747,487	'	'
Long-term debt	179,606	180,054	'	'
Liability to HEP	0	0	'	'
Deferred income tax liabilities	652,153	611,555	'	'
Other long-term liabilities	36,993	35,874	'	'
Investment in HEP	0	0	'	'
Equity b HollyFrontier	6,068,074	5,994,490	'	'
Equity b noncontrolling interest	0	0	'	'
Total liabilities and equity	8,297,255	7,569,460	'	'
Guarantor Restricted Subsidiaries [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	3,777	1,817	7,098	3,652
Marketable securities	0	0	'	'
Accounts receivable, net	768,504	698,109	'	'
Intercompany accounts receivable	726,278	149,907	'	'
Inventories	1,503,250	1,352,656	'	'
Income taxes receivable	0	0	'	'
Prepayments and other	122,130	45,413	'	'
Total current assets	3,123,939	2,247,902	'	'
Properties, plants and equipment, net	2,714,741	2,633,739	'	'
Marketable securities (long-term)	0	'	'	'
Investment in subsidiaries	250,981	216,687	'	'
Intangibles and other assets	2,345,299	2,380,268	'	'
Total assets	8,434,960	7,478,596	'	'
Accounts payable	1,624,681	1,323,603	'	'
Intercompany accounts payable	0	0	'	'
Accrued liabilities	60,441	63,181	'	'
Deferred income tax liabilities	0	0	'	'
Total current liabilities	1,685,122	1,386,784	'	'
Long-term debt	34,026	34,835	'	'
Liability to HEP	239,387	245,536	'	'
Deferred income tax liabilities	0	0	'	'
Other long-term liabilities	65,432	89,416	'	'
Investment in HEP	0	0	'	'
Equity b HollyFrontier	6,410,993	5,722,025	'	'
Equity b noncontrolling interest	0	0	'	'
Total liabilities and equity	8,434,960	7,478,596	'	'
Non Guarantor Restricted Subsidiaries [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	227	14	2	2
Marketable securities	0	0	'	'
Accounts receivable, net	3,087	8,075	'	'
Intercompany accounts receivable	359,183	313,623	'	'
Inventories	0	0	'	'
Income taxes receivable	0	0	'	'
Prepayments and other	0	0	'	'
Total current assets	362,497	321,712	'	'
Properties, plants and equipment, net	551	24	'	'
Marketable securities (long-term)	0	'	'	'
Investment in subsidiaries	0	0	'	'
Intangibles and other assets	25,000	25,000	'	'
Total assets	388,048	346,736	'	'
Accounts payable	0	383	'	'
Intercompany accounts payable	0	0	'	'
Accrued liabilities	1,577	795	'	'
Deferred income tax liabilities	0	0	'	'
Total current liabilities	1,577	1,178	'	'
Long-term debt	0	0	'	'
Liability to HEP	0	0	'	'
Deferred income tax liabilities	0	0	'	'
Other long-term liabilities	0	0	'	'
Investment in HEP	135,490	128,871	'	'
Equity b HollyFrontier	250,981	216,687	'	'
Equity b noncontrolling interest	0	0	'	'
Total liabilities and equity	388,048	346,736	'	'
Eliminations [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	0	0	0	0
Marketable securities	0	0	'	'
Accounts receivable, net	0	0	'	'
Intercompany accounts receivable	-1,085,461	-463,530	'	'
Inventories	0	0	'	'
Income taxes receivable	0	0	'	'
Prepayments and other	0	0	'	'
Total current assets	-1,085,461	-463,530	'	'
Properties, plants and equipment, net	0	0	'	'
Marketable securities (long-term)	0	'	'	'
Investment in subsidiaries	-6,661,974	-5,938,712	'	'
Intangibles and other assets	-25,000	-25,000	'	'
Total assets	-7,772,435	-6,427,242	'	'
Accounts payable	0	0	'	'
Intercompany accounts payable	-1,085,461	-463,530	'	'
Accrued liabilities	0	0	'	'
Deferred income tax liabilities	0	0	'	'
Total current liabilities	-1,085,461	-463,530	'	'
Long-term debt	-25,000	-25,000	'	'
Liability to HEP	0	0	'	'
Deferred income tax liabilities	0	0	'	'
Other long-term liabilities	0	0	'	'
Investment in HEP	0	0	'	'
Equity b HollyFrontier	-6,661,974	-5,938,712	'	'
Equity b noncontrolling interest	0	0	'	'
Total liabilities and equity	-7,772,435	-6,427,242	'	'
Holly Frontier Corp. Before Consolidation Of HEP [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	1,112,236	933,751	1,340,704	1,752,462
Marketable securities	679,668	725,160	'	'
Accounts receivable, net	777,661	712,279	'	'
Intercompany accounts receivable	0	0	'	'
Inventories	1,503,250	1,352,656	'	'
Income taxes receivable	18,875	109,376	'	'
Prepayments and other	138,475	67,256	'	'
Total current assets	4,230,165	3,900,478	'	'
Properties, plants and equipment, net	2,747,829	2,663,770	'	'
Marketable securities (long-term)	0	'	'	'
Investment in subsidiaries	0	0	'	'
Intangibles and other assets	2,369,834	2,403,302	'	'
Total assets	9,347,828	8,967,550	'	'
Accounts payable	1,639,087	1,340,690	'	'
Intercompany accounts payable	0	0	'	'
Accrued liabilities	105,599	107,230	'	'
Deferred income tax liabilities	216,981	223,999	'	'
Total current liabilities	1,961,667	1,671,919	'	'
Long-term debt	188,632	189,889	'	'
Liability to HEP	239,387	245,536	'	'
Deferred income tax liabilities	652,153	611,555	'	'
Other long-term liabilities	102,425	125,290	'	'
Investment in HEP	135,490	128,871	'	'
Equity b HollyFrontier	6,068,074	5,994,490	'	'
Equity b noncontrolling interest	0	0	'	'
Total liabilities and equity	9,347,828	8,967,550	'	'
Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	6,066	6,352	8,716	5,237
Marketable securities	0	0	'	'
Accounts receivable, net	34,359	34,736	'	'
Intercompany accounts receivable	0	0	'	'
Inventories	1,582	1,591	'	'
Income taxes receivable	0	0	'	'
Prepayments and other	2,164	2,283	'	'
Total current assets	44,171	44,962	'	'
Properties, plants and equipment, net	1,011,961	1,004,975	'	'
Marketable securities (long-term)	0	'	'	'
Investment in subsidiaries	0	0	'	'
Intangibles and other assets	360,820	363,970	'	'
Total assets	1,416,952	1,413,907	'	'
Accounts payable	17,706	22,898	'	'
Intercompany accounts payable	0	0	'	'
Accrued liabilities	26,527	28,668	'	'
Deferred income tax liabilities	0	0	'	'
Total current liabilities	44,233	51,566	'	'
Long-term debt	839,253	807,630	'	'
Liability to HEP	0	0	'	'
Deferred income tax liabilities	5,312	5,287	'	'
Other long-term liabilities	38,585	35,918	'	'
Investment in HEP	0	0	'	'
Equity b HollyFrontier	392,304	416,018	'	'
Equity b noncontrolling interest	97,265	97,488	'	'
Total liabilities and equity	1,416,952	1,413,907	'	'
Eliminations [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	0	0	0	0
Marketable securities	0	0	'	'
Accounts receivable, net	-31,840	-38,213	'	'
Intercompany accounts receivable	0	0	'	'
Inventories	0	0	'	'
Income taxes receivable	0	0	'	'
Prepayments and other	-6,365	-10,783	'	'
Total current assets	-38,205	-48,996	'	'
Properties, plants and equipment, net	-267,047	-274,149	'	'
Marketable securities (long-term)	0	'	'	'
Investment in subsidiaries	0	0	'	'
Intangibles and other assets	-1,145	-1,573	'	'
Total assets	-306,397	-324,718	'	'
Accounts payable	-31,840	-38,212	'	'
Intercompany accounts payable	0	0	'	'
Accrued liabilities	-6,365	-10,783	'	'
Deferred income tax liabilities	0	0	'	'
Total current liabilities	-38,205	-48,995	'	'
Long-term debt	0	0	'	'
Liability to HEP	-239,387	-245,536	'	'
Deferred income tax liabilities	0	0	'	'
Other long-term liabilities	-2,291	-2,718	'	'
Investment in HEP	-135,490	-128,871	'	'
Equity b HollyFrontier	-386,846	-410,888	'	'
Equity b noncontrolling interest	495,822	512,290	'	'
Total liabilities and equity	($306,397)	($324,718)	'	'

Supplemental_GuarantorNonGuara4

Supplemental Guarantor/Non-Guarantor Financial Information Consolidating Statement of Income (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Sales and other revenues	$5,372,600	$5,298,848	$10,163,653	$10,006,637
Cost of products sold	4,674,846	4,456,808	8,813,466	8,249,343
Operating expenses	271,654	277,542	545,620	542,641
General and administrative	28,365	34,000	55,288	63,198
Depreciation and amortization	101,390	70,492	181,938	142,254
Total operating costs and expenses	5,076,255	4,838,842	9,596,312	8,997,436
Income (loss) from operations	296,345	460,006	567,341	1,009,201
Earnings (loss) of equity method investments	-908	-1,089	-1,709	-1,030
Interest income (expense)	-8,952	-19,016	-19,894	-38,805
Loss on early extinguishment of debt	0	-22,109	-7,677	-22,109
Nonoperating Income (Expense)	-9,860	-42,214	-29,280	-61,944
Income before income taxes	286,485	417,792	538,061	947,257
Income tax provision	101,332	152,043	188,946	338,137
Net income	185,153	265,749	349,115	609,120
Less net income attributable to noncontrolling interest	8,724	8,768	20,625	18,470
Net income attributable to HollyFrontier stockholders	176,429	256,981	328,490	590,650
Comprehensive income attributable to HollyFrontier stockholders	197,805	286,854	403,108	632,282
Parent Company [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Sales and other revenues	179	100	280	631
Cost of products sold	0	0	0	0
Operating expenses	0	0	0	0
General and administrative	24,343	30,242	45,450	54,373
Depreciation and amortization	2,010	1,400	3,800	2,326
Total operating costs and expenses	26,353	31,642	49,250	56,699
Income (loss) from operations	-26,174	-31,542	-48,970	-56,068
Earnings (loss) of equity method investments	303,788	469,228	566,147	1,020,119
Interest income (expense)	-373	-7,456	-797	-14,677
Loss on early extinguishment of debt	0	-22,109	0	-22,109
Nonoperating Income (Expense)	303,415	439,663	565,350	983,333
Income before income taxes	277,241	408,121	516,380	927,265
Income tax provision	101,304	151,698	188,843	337,737
Net income	175,937	256,423	327,537	589,528
Less net income attributable to noncontrolling interest	0	0	0	0
Net income attributable to HollyFrontier stockholders	175,937	256,423	327,537	589,528
Comprehensive income attributable to HollyFrontier stockholders	197,313	286,296	402,155	631,160
Guarantor Restricted Subsidiaries [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Sales and other revenues	5,362,277	5,286,984	10,137,400	9,979,410
Cost of products sold	4,738,586	4,518,737	8,948,308	8,371,865
Operating expenses	247,451	255,874	498,927	495,297
General and administrative	1,469	630	4,095	2,405
Depreciation and amortization	87,473	57,043	154,580	117,663
Total operating costs and expenses	5,074,979	4,832,284	9,605,910	8,987,230
Income (loss) from operations	287,298	454,700	531,490	992,180
Earnings (loss) of equity method investments	14,546	12,592	30,568	24,206
Interest income (expense)	1,944	1,936	4,089	3,733
Loss on early extinguishment of debt	0	0	0	0
Nonoperating Income (Expense)	16,490	14,528	34,657	27,939
Income before income taxes	303,788	469,228	566,147	1,020,119
Income tax provision	0	0	0	0
Net income	303,788	469,228	566,147	1,020,119
Less net income attributable to noncontrolling interest	0	0	0	0
Net income attributable to HollyFrontier stockholders	303,788	469,228	566,147	1,020,119
Comprehensive income attributable to HollyFrontier stockholders	338,556	489,146	687,940	1,057,542
Non Guarantor Restricted Subsidiaries [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Sales and other revenues	-36	31	935	63
Cost of products sold	0	92	0	0
Operating expenses	0	19	0	0
General and administrative	37	28	76	88
Depreciation and amortization	0	0	0	0
Total operating costs and expenses	37	139	76	88
Income (loss) from operations	-73	-108	859	-25
Earnings (loss) of equity method investments	16,132	14,401	32,415	26,393
Interest income (expense)	143	134	273	271
Loss on early extinguishment of debt	0	0	0	0
Nonoperating Income (Expense)	16,275	14,535	32,688	26,664
Income before income taxes	16,202	14,427	33,547	26,639
Income tax provision	0	0	0	0
Net income	16,202	14,427	33,547	26,639
Less net income attributable to noncontrolling interest	0	0	0	0
Net income attributable to HollyFrontier stockholders	16,202	14,427	33,547	26,639
Comprehensive income attributable to HollyFrontier stockholders	15,909	15,900	33,291	28,731
Eliminations [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Sales and other revenues	0	0	0	0
Cost of products sold	0	282	0	415
Operating expenses	0	0	0	0
General and administrative	0	0	0	0
Depreciation and amortization	0	0	0	0
Total operating costs and expenses	0	282	0	415
Income (loss) from operations	0	-282	0	-415
Earnings (loss) of equity method investments	-319,990	-483,655	-599,694	-1,046,758
Interest income (expense)	0	294	0	446
Loss on early extinguishment of debt	0	0	0	0
Nonoperating Income (Expense)	-319,990	-483,361	-599,694	-1,046,312
Income before income taxes	-319,990	-483,643	-599,694	-1,046,727
Income tax provision	0	0	0	0
Net income	-319,990	-483,643	-599,694	-1,046,727
Less net income attributable to noncontrolling interest	0	0	0	0
Net income attributable to HollyFrontier stockholders	-319,990	-483,643	-599,694	-1,046,727
Comprehensive income attributable to HollyFrontier stockholders	-354,465	-505,034	-721,231	-1,086,242
Holly Frontier Corp. Before Consolidation Of HEP [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Sales and other revenues	5,362,420	5,287,115	10,138,615	9,980,104
Cost of products sold	4,738,586	4,519,111	8,948,308	8,372,280
Operating expenses	247,451	255,893	498,927	495,297
General and administrative	25,849	30,900	49,621	56,866
Depreciation and amortization	89,483	58,443	158,380	119,989
Total operating costs and expenses	5,101,369	4,864,347	9,655,236	9,044,432
Income (loss) from operations	261,051	422,768	483,379	935,672
Earnings (loss) of equity method investments	14,476	12,566	29,436	23,960
Interest income (expense)	1,714	-5,092	3,565	-10,227
Loss on early extinguishment of debt	0	-22,109	0	-22,109
Nonoperating Income (Expense)	16,190	-14,635	33,001	-8,376
Income before income taxes	277,241	408,133	516,380	927,296
Income tax provision	101,304	151,698	188,843	337,737
Net income	175,937	256,435	327,537	589,559
Less net income attributable to noncontrolling interest	0	0	0	0
Net income attributable to HollyFrontier stockholders	175,937	256,435	327,537	589,559
Comprehensive income attributable to HollyFrontier stockholders	197,313	286,308	402,155	631,191
Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Sales and other revenues	75,024	75,121	162,036	151,605
Cost of products sold	0	0	0	0
Operating expenses	24,567	22,010	47,379	48,039
General and administrative	2,516	3,100	5,667	6,332
Depreciation and amortization	15,477	15,619	30,661	29,368
Total operating costs and expenses	42,560	40,729	83,707	83,739
Income (loss) from operations	32,464	34,392	78,329	67,866
Earnings (loss) of equity method investments	748	746	1,270	1,403
Interest income (expense)	-8,329	-11,624	-18,780	-24,006
Loss on early extinguishment of debt	0	0	-7,677	0
Nonoperating Income (Expense)	-7,581	-10,878	-25,187	-22,603
Income before income taxes	24,883	23,514	53,142	45,263
Income tax provision	28	345	103	400
Net income	24,855	23,169	53,039	44,863
Less net income attributable to noncontrolling interest	1,416	1,130	5,053	4,020
Net income attributable to HollyFrontier stockholders	23,439	22,039	47,986	40,843
Comprehensive income attributable to HollyFrontier stockholders	23,145	23,512	47,730	42,935
Eliminations [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Sales and other revenues	-64,844	-63,388	-136,998	-125,072
Cost of products sold	-63,740	-62,303	-134,842	-122,937
Operating expenses	-364	-361	-686	-695
General and administrative	0	0	0	0
Depreciation and amortization	-3,570	-3,570	-7,103	-7,103
Total operating costs and expenses	-67,674	-66,234	-142,631	-130,735
Income (loss) from operations	2,830	2,846	5,633	5,663
Earnings (loss) of equity method investments	-16,132	-14,401	-32,415	-26,393
Interest income (expense)	-2,337	-2,300	-4,679	-4,572
Loss on early extinguishment of debt	0	0	0	0
Nonoperating Income (Expense)	-18,469	-16,701	-37,094	-30,965
Income before income taxes	-15,639	-13,855	-31,461	-25,302
Income tax provision	0	0	0	0
Net income	-15,639	-13,855	-31,461	-25,302
Less net income attributable to noncontrolling interest	7,308	7,638	15,572	14,450
Net income attributable to HollyFrontier stockholders	-22,947	-21,493	-47,033	-39,752
Comprehensive income attributable to HollyFrontier stockholders	($22,653)	($22,966)	($46,777)	($41,844)

Supplemental_GuarantorNonGuara5

Supplemental Guarantor/Non-Guarantor Financial Information Consolidating Statement of Cash Flows (Details) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Condensed Financial Statements, Captions [Line Items]	'	'
Intercompany accounts payable	$0	'
Cash flows from operating activities	721,479	451,515
Additions to properties, plants and equipment	-205,987	-153,942
Proceeds from sale of properties, plants, and equipment	0	5,802
Investment in Sabine Biofuels	-5,000	-2,000
Net repayment of advances to Sabine Biofuels	10,021	-13,700
Purchases of marketable securities	-498,080	-399,154
Sales and maturities of marketable securities	543,604	398,762
Net Advances to Parent	0	0
Net cash used for investing activities	-194,224	-181,093
Net borrowings under credit agreement b HEP	-180,000	'
Proceeds from common unit offerings	0	146,888
Net repayments under credit agreement b HEP	'	66,000
Redemption of Senior Notes - HEP	-156,188	-300,973
Inventory repurchase obligation	5,964	0
Purchase of treasury stock	-20,135	-159,432
Contribution from General Partner	'	0
Dividends	-323,088	-264,867
Excess tax benefit from equity based compensation	3,778	1,037
Deferred financing costs and other	433	2,184
Net advances from subsidiaries	0	0
Net cash provided by (used for) financing activities	-349,056	-678,701
Increase (decrease) for the period	178,199	-408,279
Beginning of period	940,103	1,757,699
End of period	1,118,302	1,349,420
Principal tender on senior notes	0	-300,973
Parent Company [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Intercompany accounts payable	1,085,461	'
Cash flows from operating activities	-144,972	-374,074
Additions to properties, plants and equipment	-6,329	-5,025
Proceeds from sale of properties, plants, and equipment	'	0
Investment in Sabine Biofuels	0	0
Net repayment of advances to Sabine Biofuels	0	0
Purchases of marketable securities	-498,080	-399,154
Sales and maturities of marketable securities	543,604	398,762
Net Advances to Parent	0	0
Net cash used for investing activities	39,195	-5,417
Net borrowings under credit agreement b HEP	0	'
Redemption of Senior Notes - HEP	0	-300,973
Inventory repurchase obligation	0	'
Purchase of treasury stock	-20,135	-159,432
Contribution from General Partner	'	0
Dividends	-323,088	-264,867
Distributions to noncontrolling interest	0	0
Excess tax benefit from equity based compensation	3,778	1,037
Purchase of units for restricted grants - HEP	0	'
Deferred financing costs and other	0	0
Net advances from subsidiaries	621,534	615,078
Net cash provided by (used for) financing activities	282,089	-35,713
Increase (decrease) for the period	176,312	-415,204
Beginning of period	931,920	1,748,808
End of period	1,108,232	1,333,604
Guarantor Restricted Subsidiaries [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Intercompany accounts payable	0	'
Cash flows from operating activities	773,845	758,289
Additions to properties, plants and equipment	-199,132	-148,917
Proceeds from sale of properties, plants, and equipment	'	-3,321
Investment in Sabine Biofuels	-5,000	-2,000
Net repayment of advances to Sabine Biofuels	10,021	-13,700
Purchases of marketable securities	0	0
Sales and maturities of marketable securities	0	0
Net Advances to Parent	-582,930	-596,004
Net cash used for investing activities	-777,041	-757,300
Net borrowings under credit agreement b HEP	0	'
Proceeds from common unit offerings	'	0
Redemption of Senior Notes - HEP	0	0
Inventory repurchase obligation	5,964	'
Purchase of treasury stock	0	0
Contribution from General Partner	'	0
Dividends	0	0
Distributions to noncontrolling interest	0	0
Excess tax benefit from equity based compensation	0	0
Purchase of units for restricted grants - HEP	0	'
Deferred financing costs and other	808	2,457
Net advances from subsidiaries	0	0
Net cash provided by (used for) financing activities	5,156	2,457
Increase (decrease) for the period	1,960	3,446
Beginning of period	1,817	3,652
End of period	3,777	7,098
Non Guarantor Restricted Subsidiaries [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Intercompany accounts payable	0	'
Cash flows from operating activities	38,968	20,573
Additions to properties, plants and equipment	-526	0
Proceeds from sale of properties, plants, and equipment	'	0
Investment in Sabine Biofuels	0	0
Net repayment of advances to Sabine Biofuels	0	0
Purchases of marketable securities	0	0
Sales and maturities of marketable securities	0	0
Net Advances to Parent	-38,604	-19,074
Net cash used for investing activities	-39,130	-19,074
Net borrowings under credit agreement b HEP	0	'
Proceeds from common unit offerings	'	0
Redemption of Senior Notes - HEP	0	0
Inventory repurchase obligation	0	'
Purchase of treasury stock	0	0
Contribution from General Partner	'	1,499
Dividends	0	0
Distributions to noncontrolling interest	0	0
Excess tax benefit from equity based compensation	0	0
Purchase of units for restricted grants - HEP	0	'
Deferred financing costs and other	-375	0
Net advances from subsidiaries	0	0
Net cash provided by (used for) financing activities	375	-1,499
Increase (decrease) for the period	213	0
Beginning of period	14	2
End of period	227	2
Eliminations [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Intercompany accounts payable	-1,085,461	'
Cash flows from operating activities	0	0
Additions to properties, plants and equipment	0	0
Proceeds from sale of properties, plants, and equipment	'	0
Investment in Sabine Biofuels	0	0
Net repayment of advances to Sabine Biofuels	0	0
Purchases of marketable securities	0	0
Sales and maturities of marketable securities	0	0
Net Advances to Parent	621,534	615,078
Net cash used for investing activities	621,534	615,078
Net borrowings under credit agreement b HEP	0	'
Proceeds from common unit offerings	'	0
Net repayments under credit agreement b HEP	'	0
Redemption of Senior Notes - HEP	0	0
Inventory repurchase obligation	0	'
Purchase of treasury stock	0	0
Contribution from General Partner	'	0
Dividends	0	0
Distributions to noncontrolling interest	0	0
Excess tax benefit from equity based compensation	0	0
Purchase of units for restricted grants - HEP	0	0
Deferred financing costs and other	0	0
Net advances from subsidiaries	621,534	615,078
Net cash provided by (used for) financing activities	-621,534	-615,078
Increase (decrease) for the period	0	0
Beginning of period	0	0
End of period	0	0
Holly Frontier Corp. Before Consolidation Of HEP [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Intercompany accounts payable	0	'
Cash flows from operating activities	667,841	404,788
Additions to properties, plants and equipment	-205,987	-153,942
Proceeds from sale of properties, plants, and equipment	'	-3,321
Investment in Sabine Biofuels	-5,000	-2,000
Net repayment of advances to Sabine Biofuels	10,021	-13,700
Purchases of marketable securities	-498,080	-399,154
Sales and maturities of marketable securities	543,604	398,762
Net Advances to Parent	0	0
Net cash used for investing activities	-155,442	-166,713
Net borrowings under credit agreement b HEP	0	'
Proceeds from common unit offerings	'	73,444
Redemption of Senior Notes - HEP	0	-300,973
Inventory repurchase obligation	5,964	'
Purchase of treasury stock	-20,135	-159,432
Contribution from General Partner	'	1,499
Dividends	-323,088	-264,867
Distributions to noncontrolling interest	0	0
Excess tax benefit from equity based compensation	3,778	1,037
Purchase of units for restricted grants - HEP	0	'
Deferred financing costs and other	433	2,457
Net advances from subsidiaries	0	0
Net cash provided by (used for) financing activities	-333,914	-649,833
Increase (decrease) for the period	178,485	-411,758
Beginning of period	933,751	1,752,462
End of period	1,112,236	1,340,704
Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Intercompany accounts payable	0	'
Cash flows from operating activities	92,667	81,542
Additions to properties, plants and equipment	0	-16,861
Proceeds from sale of properties, plants, and equipment	'	-2,481
Investment in Sabine Biofuels	0	0
Net repayment of advances to Sabine Biofuels	0	0
Purchases of marketable securities	0	0
Sales and maturities of marketable securities	0	0
Net Advances to Parent	0	0
Net cash used for investing activities	-38,782	-14,380
Net borrowings under credit agreement b HEP	-180,000	'
Proceeds from common unit offerings	'	73,444
Net repayments under credit agreement b HEP	'	66,000
Redemption of Senior Notes - HEP	-156,188	0
Inventory repurchase obligation	0	'
Purchase of treasury stock	0	0
Contribution from General Partner	'	1,499
Dividends	0	0
Distributions to noncontrolling interest	-77,577	-69,419
Excess tax benefit from equity based compensation	0	0
Purchase of units for restricted grants - HEP	-406	-2,934
Deferred financing costs and other	0	-273
Net advances from subsidiaries	0	0
Net cash provided by (used for) financing activities	-54,171	-63,683
Increase (decrease) for the period	-286	3,479
Beginning of period	6,352	5,237
End of period	6,066	8,716
Eliminations [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Intercompany accounts payable	0	'
Cash flows from operating activities	-39,029	-34,815
Additions to properties, plants and equipment	0	0
Proceeds from sale of properties, plants, and equipment	'	0
Investment in Sabine Biofuels	0	0
Net repayment of advances to Sabine Biofuels	0	0
Purchases of marketable securities	0	0
Sales and maturities of marketable securities	0	0
Net Advances to Parent	0	0
Net cash used for investing activities	0	0
Redemption of Senior Notes - HEP	0	0
Inventory repurchase obligation	0	'
Purchase of treasury stock	0	0
Contribution from General Partner	'	0
Dividends	0	0
Distributions to noncontrolling interest	39,029	34,815
Excess tax benefit from equity based compensation	0	0
Purchase of units for restricted grants - HEP	0	0
Deferred financing costs and other	0	0
Net advances from subsidiaries	0	0
Net cash provided by (used for) financing activities	39,029	34,815
Increase (decrease) for the period	0	0
Beginning of period	0	0
End of period	0	0
HEP [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Additions to properties, plants and equipment	-38,782	-16,861
Proceeds from common unit offerings	'	73,444
Distributions to noncontrolling interest	-38,548	-34,604
Purchase of units for restricted grants - HEP	-406	-2,934
Beginning of period	6,352	'
End of period	6,066	'
Principal tender on senior notes	-156,188	0
HEP [Member] | Parent Company [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Additions to properties, plants and equipment	0	0
Proceeds from common unit offerings	'	73,444
Net repayments under credit agreement b HEP	'	0
Purchase of units for restricted grants - HEP	'	0
HEP [Member] | Guarantor Restricted Subsidiaries [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Additions to properties, plants and equipment	0	0
Net repayments under credit agreement b HEP	'	0
Purchase of units for restricted grants - HEP	'	0
HEP [Member] | Non Guarantor Restricted Subsidiaries [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Additions to properties, plants and equipment	0	0
Net repayments under credit agreement b HEP	'	0
Purchase of units for restricted grants - HEP	'	0
HEP [Member] | Holly Frontier Corp. Before Consolidation Of HEP [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Additions to properties, plants and equipment	0	0
Net repayments under credit agreement b HEP	'	0
Purchase of units for restricted grants - HEP	'	0
HEP [Member] | Eliminations [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Additions to properties, plants and equipment	0	0
Net borrowings under credit agreement b HEP	0	'
Proceeds from common unit offerings	'	0
Net repayments under credit agreement b HEP	'	$0