STATEMENT OF CONSOLIDATED OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
REVENUES AND OTHER:
Derivative instrument gains (losses), net	$ 16	$ (2)	$ (262)	$ (40)
Gain (loss) on divestitures, net	(1)	0	24	20
Other, net	9	34	41	33
Total revenues and other	1,144	1,500	3,019	4,775
OPERATING EXPENSES:
Lease operating expenses	259	350	858	1,104
Taxes other than income	34	44	90	141
Exploration	58	56	187	220
General and administrative	52	98	214	323
Transaction, reorganization, and separation	7	7	44	17
Depreciation, depletion, and amortization	398	711	1,382	1,959
Accretion expense	27	27	81	80
Impairments	0	9	4,492	249
Financing costs, net	99	95	168	365
Total operating expenses	1,072	1,486	7,929	4,748
NET INCOME (LOSS) BEFORE INCOME TAXES	72	14	(4,910)	27
Current income tax provision	58	141	120	514
Deferred income tax benefit	(27)	(10)	(71)	(52)
NET INCOME (LOSS) INCLUDING NONCONTROLLING INTERESTS	41	(117)	(4,959)	(435)
NET LOSS ATTRIBUTABLE TO COMMON STOCK	$ (4)	$ (170)	$ (4,870)	$ (577)
NET LOSS PER COMMON SHARE:
Basic (in USD per share)	$ (0.01)	$ (0.45)	$ (12.89)	$ (1.53)
Diluted (in USD per share)	$ (0.02)	$ (0.45)	$ (12.89)	$ (1.53)
WEIGHTED-AVERAGE NUMBER OF COMMON SHARES OUTSTANDING:
Basic (in shares)	378	377	378	377
Diluted (in shares)	378	377	378	377
Altus Preferred Unit limited partners
OPERATING EXPENSES:
Net income (loss) attributable to noncontrolling interest	$ 19	$ 18	$ 56	$ 22
Noncontrolling interests, Egypt
OPERATING EXPENSES:
Net income (loss) attributable to noncontrolling interest	24	38	(138)	125
Noncontrolling interests, Altus
OPERATING EXPENSES:
Net income (loss) attributable to noncontrolling interest	2	(3)	(7)	(5)
Oil and gas
REVENUES AND OTHER:
Oil and gas production revenues	1,120	1,468	3,216	4,762
Oil and gas, excluding purchased
REVENUES AND OTHER:
Oil and gas production revenues	1,046	1,438	2,979	4,690
OPERATING EXPENSES:
Cost of oil and gas purchased	63	66	206	230
Oil and gas, purchased
REVENUES AND OTHER:
Oil and gas production revenues	74	30	237	72
OPERATING EXPENSES:
Cost of oil and gas purchased	$ 75	$ 23	$ 207	$ 60