Segment Information (Schedule Of Segment Reporting Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]
Sales and other revenues	$ 5,317,555	$ 5,327,122	$ 15,481,208	$ 15,333,759
Depreciation and amortization	80,945	82,127	262,883	224,381
Income (loss) from operations	302,611	149,750	869,952	1,158,951
Capital expenditures	124,364	115,386	369,133	286,189
Cash, Cash Equivalents, And Total Investments In Marketable Securities	1,479,506		1,479,506		1,665,263
Total assets	10,181,770		10,181,770		10,056,739
Long-term Debt	1,039,396		1,039,396		997,519
Refining [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	5,303,053	5,314,954	15,440,047	15,294,261
Depreciation and amortization	63,109	61,553	210,490	172,166
Income (loss) from operations	292,132	144,508	835,555	1,145,487
Capital expenditures	98,115	92,918	290,392	231,416
Cash, Cash Equivalents, And Total Investments In Marketable Securities	3,501		3,501		1,860
Total assets	7,476,849		7,476,849		7,094,558
Long-term Debt	0		0		0
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	181	257	1,802	1,054
Depreciation and amortization	2,965	1,739	7,275	4,426
Income (loss) from operations	(28,313)	(28,701)	(81,670)	(87,319)
Capital expenditures	3,374	8,230	17,084	23,674
Cash, Cash Equivalents, And Total Investments In Marketable Securities	1,474,338		1,474,338		1,657,051
Total assets	1,593,308		1,593,308		1,881,119
Long-term Debt	187,980		187,980		189,889
Consolidations And Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	(67,820)	(65,714)	(204,818)	(190,786)
Depreciation and amortization	(207)	(207)	(621)	(621)
Income (loss) from operations	(549)	(538)	(1,603)	(1,564)
Capital expenditures	0	0	0	0
Cash, Cash Equivalents, And Total Investments In Marketable Securities	0		0		0
Total assets	(307,167)		(307,167)		(332,846)
Long-term Debt	0		0		0
HEP [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	82,141	77,625	244,177	229,230
Depreciation and amortization	15,078	19,042	45,739	48,410
Income (loss) from operations	39,341	34,481	117,670	102,347
Capital expenditures	22,875	14,238	61,657	31,099
Cash, Cash Equivalents, And Total Investments In Marketable Securities	1,667		1,667		6,352
Total assets	1,418,780		1,418,780		1,413,908
Long-term Debt	$ 851,416		$ 851,416		$ 807,630