Consolidated Statements Of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Cash flows from operating activities:
Net income	$ 326,328,000		$ 767,823,000		$ 1,760,033,000
Adjustments to reconcile net income to net cash provided by operating activities:
Lower of cost or market inventory adjustment	397,478,000		0		0
Depreciation and amortization	363,381,000		303,446,000		242,868,000
Net loss of equity method investments, inclusive of distributions	5,257,000		5,198,000		701,000
Loss on early extinguishment of debt attributable to unamortized discount	1,489,000		7,948,000		0
Gain on sale of assets	866,000		0		326,000
Deferred income taxes	(193,662,000)		114,404,000		95,408,000
Equity-based compensation expense	29,598,000		35,775,000		39,203,000
Change in fair value – derivative instruments	(22,668,000)		(53,185,000)		52,335,000
Loss on settlement of retirement benefit obligations, net of contributions	0		16,771,000		(19,524,000)
(Increase) decrease in current assets:
Accounts receivable	108,876,000		(68,832,000)		71,627,000
Inventories	(78,842,000)		(15,929,000)		(205,013,000)
Income taxes receivable	94,237,000		(34,419,000)		19,056,000
Prepayments and other	1,486,000		1,377,000		(9,366,000)
Increase (decrease) in current liabilities:
Accounts payable	(217,541,000)		2,068,000		(194,051,000)
Income taxes payable	19,642,000		0		(40,366,000)
Accrued liabilities	8,047,000		(41,229,000)		(39,851,000)
Turnaround expenditures	(96,803,000)		(193,920,000)		(159,707,000)
Other, net	13,159,000		21,878,000		49,660,000
Net cash provided by operating activities	758,596,000	[1]	869,174,000	[1]	1,662,687,000	[1]
Cash flows from investing activities:
Additions to properties, plants and equipment	(485,002,000)		(373,271,000)		(290,334,000)
Proceeds from sale of assets	16,633,000		7,802,000		0
Acquisition of trucking operations	0		(11,301,000)		0
Purchases of marketable securities	(1,025,602,000)		(935,512,000)		(671,552,000)
Sales and maturities of marketable securities	1,276,447,000		846,143,000		297,711,000
Other, net	5,021,000		(8,740,000)		(2,000,000)
Net cash used for investing activities	(292,322,000)		(526,735,000)		(711,104,000)
Cash flows from financing activities:
Redemption of senior notes - HFC	0		(300,973,000)		(205,000,000)
Repayments of Long-term Debt	(156,188,000)
Proceeds from sale of HEP common units	0		73,444,000		0
Purchase of treasury stock	(158,847,000)		(225,023,000)		(209,600,000)
Dividends	(647,197,000)		(645,920,000)		(658,085,000)
Distributions to noncontrolling interest	(78,202,000)		(71,201,000)		(58,788,000)
Excess tax benefit from equity-based compensation	2,040,000		2,562,000		23,361,000
Purchase of units for incentive grants – HEP	(3,577,000)		(5,313,000)		(4,713,000)
Other, net	(7,998,000)		(8,368,000)		4,574,000
Net cash used for financing activities	(838,392,000)		(1,160,035,000)		(772,788,000)
Cash and cash equivalents:
Increase (decrease) for the period	(372,118,000)		(817,596,000)		178,795,000
Beginning of period	940,103,000		1,757,699,000		1,578,904,000
End of period	567,985,000		940,103,000		1,757,699,000
Cash paid during the period for:
Interest	55,716,000		76,647,000		101,709,000
Income taxes	237,907,000		372,846,000		983,618,000
HEP
Cash flows from investing activities:
Additions to properties, plants and equipment	(79,819,000)		(51,856,000)		(44,929,000)
Proceeds from sale of assets			7,802,000
Cash flows from financing activities:
Borrowings under credit agreement – HEP	642,300,000		310,600,000		587,000,000
Repayments under credit agreement – HEP	(434,300,000)		(368,600,000)		(366,000,000)
Net proceeds from issuance of senior notes – HEP	0		0		294,750,000
Repayments of Long-term Debt	156,188,000		0		185,000,000
Proceeds from common unit offerings – HEP	0		73,444,000		0
Distributions to noncontrolling interest	(78,202,000)		(71,201,000)		(58,788,000)
Cash and cash equivalents:
Beginning of period	6,352,000
End of period	$ 2,830,000		$ 6,352,000

[1] (1) Parent operating cash flows include cash inflows of $403.1 million, $806.0 million, and $2,727.6 million for the years ended December 31, 2014, 2013 and 2012, respectively, representing distributions of earnings from the Restricted Subsidiaries.