CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
REVENUES AND OTHER INCOME
Net sales	$ 4,108	$ 5,859	$ 13,649	$ 14,283
Interest, dividends and other income	21	56	88	175
(Losses) gains on sale of assets, net	(846)	128	(824)	150
Total	3,283	6,043	12,913	14,608
COSTS AND OTHER DEDUCTIONS
Oil and gas operating expense	656	974	2,356	2,336
Transportation and gathering expense	343	221	1,275	285
Chemical and midstream cost of sales	618	741	1,807	2,046
Purchased commodities	333	441	940	1,237
Selling, general and administrative expenses	166	245	655	548
Other operating and non-operating expense	231	362	542	860
Taxes other than on income	180	244	473	478
Depreciation, depletion and amortization	1,915	1,767	6,343	3,771
Asset impairments and other charges	2,723	325	10,996	325
Anadarko acquisition-related costs	5	924	302	974
Exploration expense	29	63	99	134
Interest and debt expense, net	353	381	1,015	632
Total	7,552	6,688	26,803	13,626
Income (loss) before income taxes and other items	(4,269)	(645)	(13,890)	982
OTHER ITEMS
Gains (losses) on interest rate swaps and Berkshire warrants, net	88	(33)	(573)	(33)
Income from equity investments	123	104	183	274
Total	211	71	(390)	241
Income (loss) from continuing operations before income taxes	(4,058)	(574)	(14,280)	1,223
Income tax benefit (expense)	403	(163)	1,896	(694)
Income (loss) from continuing operations	(3,655)	(737)	(12,384)	529
Income (loss) from discontinued operations, net of tax	80	(15)	(1,335)	(15)
NET INCOME (LOSS)	(3,575)	(752)	(13,719)	514
Less: Net income attributable to noncontrolling interest	0	(42)	0	(42)
Less: Preferred stock dividends	(203)	(118)	(644)	(118)
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCKHOLDERS	$ (3,778)	$ (912)	$ (14,363)	$ 354
Income (loss) from continuing operations—basic (in usd per share)	$ (4.16)	$ (1.06)	$ (14.26)	$ 0.47
Loss from discontinued operations - basic (in usd per share)	0.09	(0.02)	(1.46)	(0.02)
Net income (loss) attributable to common stockholders—basic (in usd per share)	(4.07)	(1.08)	(15.72)	0.45
Income (loss) from continuing operations—diluted (in usd per share)	(4.16)	(1.06)	(14.26)	0.47
Loss from discontinued operations - diluted (in usd per share)	0.09	(0.02)	(1.46)	(0.02)
Net income (loss) attributable to common stockholders—diluted (in usd per share)	$ (4.07)	$ (1.08)	$ (15.72)	$ 0.45