Other Comprehensive Income (Loss) (Accumulated Other Comprehensive Loss In Equity) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	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)