BUSINESS SEGMENT INFORMATION - Financial Segment Information (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Operating Expenses:
Lease operating expenses	[1]	$ 321	$ 381	$ 1,016	$ 1,047
Taxes other than income		41	56	137	153
Exploration		25	39	95	120
Depreciation, depletion, and amortization		418	377	1,185	1,024
Asset retirement obligation accretion		33	29	107	86
Impairments		1,111	0	1,111	46
Total operating expenses		2,280	1,176	4,399	3,265
Operating Income (Loss)		(302)	1,036	1,311	2,636
Other Income (Expense):
Derivative instrument gains, net		0	0	1	0
Loss on offshore decommissioning contingency				(83)
Gain on divestitures, net		1	1	284	7
Other, net		20	7	40	84
General and administrative		(78)	(132)	(229)	(256)
Transaction, reorganization, and separation		(3)	(5)	(17)	(11)
Financing costs, net		(20)	(40)	(79)	(131)
NET INCOME (LOSS) BEFORE INCOME TAXES		(382)	867	1,228	2,329
Total Assets		16,936	14,799	16,936	14,799	$ 16,944
Operating Segments | U.S.
Operating Expenses:
Lease operating expenses		125	151	382	423
Taxes other than income		41	56	137	153
Exploration		4	4	16	10
Depreciation, depletion, and amortization		178	158	502	437
Asset retirement obligation accretion		7	9	30	29
Impairments		315		315	0
Total operating expenses		988	644	2,074	1,777
Operating Income (Loss)		99	344	760	840
Other Income (Expense):
Total Assets		11,973	9,616	11,973	9,616
Impairments of oil and gas properties			2	10	7
Operating Segments | Egypt
Operating Expenses:
Lease operating expenses		109	128	352	346
Taxes other than income		0	0	0	0
Exploration		21	25	77	91
Depreciation, depletion, and amortization		167	129	464	378
Asset retirement obligation accretion		0	0	0	0
Impairments		0		0	0
Total operating expenses		303	295	912	841
Operating Income (Loss)		451	510	1,322	1,394
Other Income (Expense):
Total Assets		3,525	3,518	3,525	3,518
Operating Segments | North Sea
Operating Expenses:
Lease operating expenses		87	102	282	278
Taxes other than income		0	0	0	0
Exploration		0	9	1	18
Depreciation, depletion, and amortization		73	90	219	209
Asset retirement obligation accretion		26	20	77	57
Impairments		796		796	46
Total operating expenses		989	236	1,412	646
Operating Income (Loss)		(852)	183	(770)	403
Other Income (Expense):
Total Assets		1,439	1,665	1,439	1,665
Impairments of oil and gas properties			6		12
Intersegment Eliminations & Other
Operating Expenses:
Lease operating expenses		0	0	0	0
Taxes other than income		0	0	0	0
Exploration		0	1	1	1
Depreciation, depletion, and amortization		0	0	0	0
Asset retirement obligation accretion		0	0	0	0
Impairments		0		0	0
Total operating expenses		0	1	1	1
Operating Income (Loss)		0	(1)	(1)	(1)
Other Income (Expense):
Total Assets		(1)	0	(1)	0
Oil and gas
Segment Reporting Information [Line Items]
Total revenues		1,978	2,212	5,710	5,901
Oil and gas | Operating Segments | U.S.
Segment Reporting Information [Line Items]
Total revenues		1,087	988	2,834	2,617
Oil and gas | Operating Segments | Egypt
Segment Reporting Information [Line Items]
Total revenues		754	805	2,234	2,235
Oil and gas | Operating Segments | North Sea
Segment Reporting Information [Line Items]
Total revenues		137	419	642	1,049
Oil and gas | Intersegment Eliminations & Other
Segment Reporting Information [Line Items]
Total revenues		0	0	0	0
Oil and gas, excluding purchased
Segment Reporting Information [Line Items]
Total revenues	[1]	1,544	1,983	4,843	5,289
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs	[1]	78	83	237	231
Oil and gas, excluding purchased | Operating Segments | U.S.
Segment Reporting Information [Line Items]
Total revenues		653	759	1,967	2,005
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs		65	55	181	167
Oil and gas, excluding purchased | Operating Segments | Egypt
Segment Reporting Information [Line Items]
Total revenues		754	805	2,234	2,235
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs		6	13	19	26
Oil and gas, excluding purchased | Operating Segments | North Sea
Segment Reporting Information [Line Items]
Total revenues		137	419	642	1,049
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs		7	15	37	38
Oil and gas, excluding purchased | Intersegment Eliminations & Other
Segment Reporting Information [Line Items]
Total revenues		0	0	0	0
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs		0	0	0	0
Purchased oil and gas
Segment Reporting Information [Line Items]
Total revenues	[1]	434	229	867	612
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs	[1]	253	211	511	558
Purchased oil and gas | Operating Segments | U.S.
Segment Reporting Information [Line Items]
Total revenues		434	229	867	612
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs		253	211	511	558
Purchased oil and gas | Operating Segments | Egypt
Segment Reporting Information [Line Items]
Total revenues		0	0	0	0
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs		0	0	0	0
Purchased oil and gas | Operating Segments | North Sea
Segment Reporting Information [Line Items]
Total revenues		0	0	0	0
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs		0	0	0	0
Purchased oil and gas | Intersegment Eliminations & Other
Segment Reporting Information [Line Items]
Total revenues		0	0	0	0
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs		0	0	0	0
Oil revenues
Other Income (Expense):
Revenue from non-customers		182	202	533	539
Oil revenues | Oil and gas, excluding purchased
Segment Reporting Information [Line Items]
Total revenues		1,345	1,629	4,130	4,305
Oil revenues | Oil and gas, excluding purchased | Operating Segments | U.S.
Segment Reporting Information [Line Items]
Total revenues		555	557	1,610	1,469
Oil revenues | Oil and gas, excluding purchased | Operating Segments | Egypt
Segment Reporting Information [Line Items]
Total revenues		673	724	2,003	1,971
Oil revenues | Oil and gas, excluding purchased | Operating Segments | North Sea
Segment Reporting Information [Line Items]
Total revenues		117	348	517	865
Oil revenues | Oil and gas, excluding purchased | Intersegment Eliminations & Other
Segment Reporting Information [Line Items]
Total revenues		0	0	0	0
Natural gas revenues
Other Income (Expense):
Revenue from non-customers		22	23	63	73
Natural gas revenues | Oil and gas, excluding purchased
Segment Reporting Information [Line Items]
Total revenues		99	230	396	643
Natural gas revenues | Oil and gas, excluding purchased | Operating Segments | U.S.
Segment Reporting Information [Line Items]
Total revenues		3	83	61	214
Natural gas revenues | Oil and gas, excluding purchased | Operating Segments | Egypt
Segment Reporting Information [Line Items]
Total revenues		81	81	231	264
Natural gas revenues | Oil and gas, excluding purchased | Operating Segments | North Sea
Segment Reporting Information [Line Items]
Total revenues		15	66	104	165
Natural gas revenues | Oil and gas, excluding purchased | Intersegment Eliminations & Other
Segment Reporting Information [Line Items]
Total revenues		0	0	0	0
Natural gas liquids revenues | Oil and gas, excluding purchased
Segment Reporting Information [Line Items]
Total revenues		100	124	317	341
Natural gas liquids revenues | Oil and gas, excluding purchased | Operating Segments | U.S.
Segment Reporting Information [Line Items]
Total revenues		95	119	296	322
Natural gas liquids revenues | Oil and gas, excluding purchased | Operating Segments | Egypt
Segment Reporting Information [Line Items]
Total revenues		0	0	0	0
Natural gas liquids revenues | Oil and gas, excluding purchased | Operating Segments | North Sea
Segment Reporting Information [Line Items]
Total revenues		5	5	21	19
Natural gas liquids revenues | Oil and gas, excluding purchased | Intersegment Eliminations & Other
Segment Reporting Information [Line Items]
Total revenues		$ 0	$ 0	$ 0	$ 0

[1] For transactions with Kinetik prior to the Company’s sale of its remaining shares of Kinetik Class A Common Stock and the resignation of the Company’s designated director from the Kinetik board of directors, refer to Note 6—Equity Method Interests.