Segment Information (Schedule Of Segment Reporting Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012		Dec. 31, 2012
Segment Reporting Information [Line Items]
Sales and other revenues	$ 5,298,848		$ 4,806,681		$ 10,006,637		$ 9,738,419
Depreciation and amortization	70,492		56,948		142,254		113,050
Income (loss) from operations	460,006		813,137		1,009,201		1,232,701
Capital expenditures	98,839		66,633		170,803		128,020
Cash, Cash Equivalents, And Investments In Marketable Securities	1,985,528				1,985,528				2,393,401
Assets	10,493,934				10,493,934				10,328,997
Long-term Debt	990,236				990,236				1,336,238
Refining [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	5,286,881		4,795,647		9,979,307		9,715,384
Depreciation and amortization	53,443		43,811		110,613		85,532
Income (loss) from operations	458,777		813,044		1,000,979		1,227,987
Capital expenditures	74,866		56,262		138,498		101,796
Cash, Cash Equivalents, And Investments In Marketable Securities	7,115				7,115				2,101
Assets	7,279,491				7,279,491				6,702,872
Long-term Debt	0				0				0
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	234		145		797		301
Depreciation and amortization	1,637		1,027		2,687		2,220
Income (loss) from operations	(32,646)		(31,313)		(58,618)		(58,288)
Capital expenditures	12,125		1,006		15,444		2,605
Cash, Cash Equivalents, And Investments In Marketable Securities	1,969,697				1,969,697				2,386,063
Assets	2,129,611				2,129,611				2,531,967
Long-term Debt	206,691				206,691				487,472
Consolidations And Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	(63,388)		(56,214)		(125,072)		(111,946)
Depreciation and amortization	(207)		(207)		(414)		(414)
Income (loss) from operations	(517)		(523)		(1,026)		(1,040)
Capital expenditures	0		0		0		0
Cash, Cash Equivalents, And Investments In Marketable Securities	0				0				0
Assets	(332,470)				(332,470)				(332,642)
Long-term Debt	(15,607)				(15,607)				(15,907)
HEP [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	75,121	[1]	67,103	[1]	151,605	[1]	134,680	[1]
Depreciation and amortization	15,619	[1]	12,317	[1]	29,368	[1]	25,712	[1]
Income (loss) from operations	34,392	[1]	31,929	[1]	67,866	[1]	64,042	[1]
Capital expenditures	11,848	[1]	9,365	[1]	16,861	[1]	23,619	[1]
Cash, Cash Equivalents, And Investments In Marketable Securities	8,716				8,716				5,237	[1]
Assets	1,417,302				1,417,302				1,426,800	[1]
Long-term Debt	$ 799,152				$ 799,152				$ 864,673	[1]
UNEV Pipeline [Member]
Segment Reporting Information [Line Items]
Percentage of interest owned in pipeline project	75.00%				75.00%

[1] HEP acquired our 75% interest in UNEV in July 2012. As a result, we have recast our HEP segment information for the three and six months ended June 30, 2012 to include the UNEV Pipeline operations as a consolidated subsidiary of HEP. The UNEV Pipeline operations were previously presented under Corporate and Other.