Consolidated Statements Of Equity (Unaudited) Consolidated Statements Of Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]
Beginning Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2018	$ 6,459,059	$ 2,560	$ 4,196,125	$ 4,196,902	$ 13,623	$ (2,490,639)	$ 540,488
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	276,486			253,055			23,431
Dividends	(56,849)			(56,849)
Distributions to noncontrolling interest holders	(33,673)						(33,673)
Other comprehensive income (loss), net of tax	13,775				13,775
Issuance of common stock under incentive compensation plans, net of forfeitures			3			(3)
Equity-based compensation	9,374		8,713				661
Purchase of treasury stock	(73,225)					(73,225)
Purchase of HEP units for restricted grants	(373)						(373)
Ending Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Mar. 31, 2019	6,594,574	2,560	4,204,841	4,393,108	27,398	(2,563,867)	530,534
Beginning Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2018	6,459,059	2,560	4,196,125	4,196,902	13,623	(2,490,639)	540,488
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	493,303
Other comprehensive income (loss), net of tax	16,579
Ending Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Jun. 30, 2019	6,530,999	2,560	4,216,305	4,533,364	30,202	(2,769,284)	517,852
Beginning Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Mar. 31, 2019	6,594,574	2,560	4,204,841	4,393,108	27,398	(2,563,867)	530,534
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	216,817			196,915			19,902
Dividends	(56,659)			(56,659)
Distributions to noncontrolling interest holders	(33,030)						(33,030)
Other comprehensive income (loss), net of tax	2,804				2,804
Allocated equity on common unit issuances, net of tax	(140)						(140)
Issuance of common stock under incentive compensation plans, net of forfeitures			(138)			138
Equity-based compensation	12,188		11,602				586
Purchase of treasury stock	(205,555)					(205,555)
Ending Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Jun. 30, 2019	6,530,999	2,560	4,216,305	4,533,364	30,202	(2,769,284)	517,852
Beginning Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2019	6,509,426	2,560	4,204,547	4,744,120	14,774	(2,987,808)	531,233
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(293,286)			(304,623)			11,337
Dividends	(57,248)			(57,248)
Distributions to noncontrolling interest holders	(33,918)						(33,918)
Other comprehensive income (loss), net of tax	(26,923)				(26,923)
Issuance of common stock under incentive compensation plans, net of forfeitures			(2,037)			2,037
Equity-based compensation	6,330		5,824				506
Purchase of treasury stock	(1,062)					(1,062)
Purchase of HEP units for restricted grants	(145)						(145)
Contributions from noncontrolling interests	7,304						7,304
Ending Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Mar. 31, 2020	6,110,478	2,560	4,208,334	4,382,249	(12,149)	(2,986,833)	516,317
Beginning Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2019	6,509,426	2,560	4,204,547	4,744,120	14,774	(2,987,808)	531,233
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(443,693)
Other comprehensive income (loss), net of tax	(12,549)
Ending Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Jun. 30, 2020	5,914,511	2,560	4,215,894	4,148,390	2,225	(2,986,487)	531,929
Beginning Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Mar. 31, 2020	6,110,478	2,560	4,208,334	4,382,249	(12,149)	(2,986,833)	516,317
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(150,407)			(176,677)			26,270
Dividends	(57,182)			(57,182)
Distributions to noncontrolling interest holders	(17,090)						(17,090)
Other comprehensive income (loss), net of tax	14,374				14,374
Issuance of common stock under incentive compensation plans, net of forfeitures			(527)			527
Equity-based compensation	7,959		7,484				475
Purchase of treasury stock	(181)					(181)
Purchase of HEP units for restricted grants	(2)						(2)
Contributions from noncontrolling interests	5,959						5,959
Reclamation of stockholder short-swing profit	603
Ending Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Jun. 30, 2020	$ 5,914,511	$ 2,560	$ 4,215,894	$ 4,148,390	$ 2,225	$ (2,986,487)	$ 531,929