Other Comprehensive Income (Loss) (Accumulated Other Comprehensive Loss In Equity) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Available-for-sale Securities, Gross Realized Gains (Losses), Sale Proceeds	$ 10	$ (15)	$ 13	$ 66
Available-for-sale Securities, Gross Realized Gain (Loss)		0		326
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax		(15)		392
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax	4	(6)	5	152
Gain (Loss) on Sale of Securities, Net	6	(9)	8	240
Gain (Loss) on Sale of Derivatives	21,737	(33,409)	766	(20,986)
Amortization of unrealized loss attributable to discontinued cash flow hedges	270	1,274	1,479	3,821
Cash Flow Hedge Gain (Loss) Reclassified to Interest Expense, Net	13,954	21,103	55,068	81,360
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		(1,695)		(4,760)
Gain (Loss) on Derivative Instruments, Net, Pretax	21,208	(35,104)	(1,632)	(25,746)
Other Comprehensive Income (Loss), Finalization of Pension and Non-Pension Postretirement Plan Valuation, before Tax			(28,986)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax			(1,726)
Gain (Loss) on Sale of Derivatives, Income Tax	8,375	(13,293)	(69)	(8,958)
Gain (Loss) on Sale of Securities, Net	12,833	(21,811)	(1,563)	(16,788)
Gain (Loss) on Sale of Derivative Instruments - Noncontrolling Interest	321	932	1,453	2,717
Gain (Loss) on Sale of Derivatives - After Tax and NC Interests	13,154	(20,879)	(110)	(14,071)
Other Comprehensive Income (Loss), Finalization of Pension and Non-Pension Postretirement Plan Valuation, Tax			(11,275)
Other Comprehensive Income (Loss), Finalization of Pension and Non-Pension Postretirement Plan Valuation, Net of Tax			(17,711)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(1,700)		(1,055)	(4,339)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax			(671)	(2,763)
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax	13,160	(20,888)	(18,868)	(13,831)
Revenues (decrease) [Member]
Gain (Loss) on Sale of Derivatives	(10,138)	(44,936)	(25,454)	(99,228)
Cost of Sales [Member]
Gain (Loss) on Sale of Derivatives	32,874	11,527	28,271	78,242
Other Comprehensive Income (Loss), Finalization of Pension and Non-Pension Postretirement Plan Valuation, before Tax			(2,460)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax			(84)
Operating Expense [Member]
Amortization of unrealized loss attributable to discontinued cash flow hedges	(999)		(2,051)
Other Comprehensive Income (Loss), Finalization of Pension and Non-Pension Postretirement Plan Valuation, before Tax			(23,260)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax			(1,549)
General and Administrative Expense [Member]
Other Comprehensive Income (Loss), Finalization of Pension and Non-Pension Postretirement Plan Valuation, before Tax			(3,266)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax			(93)
HEP [Member]
Amortization of unrealized loss attributable to discontinued cash flow hedges		1,274	849	3,821
Cash Flow Hedge Gain (Loss) Reclassified to Interest Expense, Net	(529)	(1,695)	(2,398)	(4,760)
Other Comprehensive Income (Loss), Finalization of Pension and Non-Pension Postretirement Plan Valuation, before Tax	0
Other Comprehensive Income (Loss), Finalization of Pension and Non-Pension Postretirement Plan Valuation, Tax	0
Other Comprehensive Income (Loss), Finalization of Pension and Non-Pension Postretirement Plan Valuation, Net of Tax	$ 0