BUSINESS SEGMENT INFORMATION - Financial Segment Information (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Operating Expenses:
Lease operating expenses	[1]	$ 369,000,000	$ 352,000,000	$ 695,000,000	$ 666,000,000
Taxes other than income		46,000,000	47,000,000	96,000,000	97,000,000
Exploration		28,000,000	37,000,000	70,000,000	81,000,000
Depreciation, depletion, and amortization		394,000,000	339,000,000	767,000,000	647,000,000
Asset retirement obligation accretion		34,000,000	29,000,000	74,000,000	57,000,000
Impairments		0	46,000,000	0	46,000,000
Total operating expenses		1,049,000,000	1,056,000,000	2,119,000,000	2,089,000,000
Operating Income (Loss)		844,000,000	688,000,000	1,613,000,000	1,600,000,000
Other Income (Expense):
Derivative instrument gains, net		1,000,000	0	1,000,000	0
Loss on previously sold Gulf of Mexico properties		(17,000,000)	0	(83,000,000)	0
Loss on offshore decommissioning contingency				(83,000,000)
Gain on divestitures, net		276,000,000	5,000,000	283,000,000	6,000,000
Other, net		5,000,000	109,000,000	20,000,000	77,000,000
General and administrative		(68,000,000)	(66,000,000)	(151,000,000)	(124,000,000)
Transaction, reorganization, and separation		(5,000,000)	(2,000,000)	(14,000,000)	(6,000,000)
Financing costs, net		(26,000,000)	(42,000,000)	(59,000,000)	(91,000,000)
NET INCOME BEFORE INCOME TAXES		1,010,000,000	692,000,000	1,610,000,000	1,462,000,000
Total Assets		17,285,000,000	14,572,000,000	17,285,000,000	14,572,000,000	$ 16,944,000,000
Operating Segments
Other Income (Expense):
Impairments of oil and gas properties		0
Operating Segments | U.S.
Operating Expenses:
Lease operating expenses		129,000,000	132,000,000	257,000,000	272,000,000
Taxes other than income		46,000,000	47,000,000	96,000,000	97,000,000
Exploration		1,000,000	3,000,000	12,000,000	6,000,000
Depreciation, depletion, and amortization		167,000,000	152,000,000	324,000,000	279,000,000
Asset retirement obligation accretion		8,000,000	10,000,000	23,000,000	20,000,000
Impairments			0		0
Total operating expenses		506,000,000	532,000,000	1,086,000,000	1,133,000,000
Operating Income (Loss)		374,000,000	226,000,000	661,000,000	496,000,000
Other Income (Expense):
Total Assets		11,701,000,000	9,489,000,000	11,701,000,000	9,489,000,000
Impairments of oil and gas properties			3,000,000	10,000,000	5,000,000
Operating Segments | Egypt
Operating Expenses:
Lease operating expenses		123,000,000	121,000,000	243,000,000	218,000,000
Taxes other than income		0	0	0	0
Exploration		25,000,000	30,000,000	56,000,000	66,000,000
Depreciation, depletion, and amortization		152,000,000	126,000,000	297,000,000	249,000,000
Asset retirement obligation accretion		0	0	0	0
Impairments			0		0
Total operating expenses		307,000,000	283,000,000	609,000,000	546,000,000
Operating Income (Loss)		439,000,000	425,000,000	871,000,000	884,000,000
Other Income (Expense):
Total Assets		3,740,000,000	3,365,000,000	3,740,000,000	3,365,000,000
Operating Segments | North Sea
Operating Expenses:
Lease operating expenses		117,000,000	99,000,000	195,000,000	176,000,000
Taxes other than income		0	0	0	0
Exploration		1,000,000	4,000,000	1,000,000	9,000,000
Depreciation, depletion, and amortization		75,000,000	61,000,000	146,000,000	119,000,000
Asset retirement obligation accretion		26,000,000	19,000,000	51,000,000	37,000,000
Impairments			46,000,000		46,000,000
Total operating expenses		235,000,000	241,000,000	423,000,000	410,000,000
Operating Income (Loss)		32,000,000	37,000,000	82,000,000	220,000,000
Other Income (Expense):
Total Assets		1,844,000,000	1,719,000,000	1,844,000,000	1,719,000,000
Impairments of oil and gas properties			3,000,000		6,000,000
Intersegment Eliminations & Other
Operating Expenses:
Lease operating expenses		0	0	0	0
Taxes other than income		0	0	0	0
Exploration		1,000,000	0	1,000,000	0
Depreciation, depletion, and amortization		0	0	0	0
Asset retirement obligation accretion		0	0	0	0
Impairments			0		0
Total operating expenses		1,000,000	0	1,000,000	0
Operating Income (Loss)		(1,000,000)	0	(1,000,000)	0
Other Income (Expense):
Total Assets		0	(1,000,000)	0	(1,000,000)
Oil and gas
Segment Reporting Information [Line Items]
Total revenues		1,893,000,000	1,744,000,000	3,732,000,000	3,689,000,000
Oil and gas | Operating Segments | U.S.
Segment Reporting Information [Line Items]
Total revenues		880,000,000	758,000,000	1,747,000,000	1,629,000,000
Oil and gas | Operating Segments | Egypt
Segment Reporting Information [Line Items]
Total revenues		746,000,000	708,000,000	1,480,000,000	1,430,000,000
Oil and gas | Operating Segments | North Sea
Segment Reporting Information [Line Items]
Total revenues		267,000,000	278,000,000	505,000,000	630,000,000
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]	1,663,000,000	1,600,000,000	3,299,000,000	3,306,000,000
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs	[1]	83,000,000	75,000,000	159,000,000	148,000,000
Oil and gas, excluding purchased | Operating Segments | U.S.
Segment Reporting Information [Line Items]
Total revenues		650,000,000	614,000,000	1,314,000,000	1,246,000,000
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs		60,000,000	57,000,000	116,000,000	112,000,000
Oil and gas, excluding purchased | Operating Segments | Egypt
Segment Reporting Information [Line Items]
Total revenues		746,000,000	708,000,000	1,480,000,000	1,430,000,000
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs		7,000,000	6,000,000	13,000,000	13,000,000
Oil and gas, excluding purchased | Operating Segments | North Sea
Segment Reporting Information [Line Items]
Total revenues		267,000,000	278,000,000	505,000,000	630,000,000
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs		16,000,000	12,000,000	30,000,000	23,000,000
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]	230,000,000	144,000,000	433,000,000	383,000,000
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs	[1]	95,000,000	131,000,000	258,000,000	347,000,000
Purchased oil and gas | Operating Segments | U.S.
Segment Reporting Information [Line Items]
Total revenues		230,000,000	144,000,000	433,000,000	383,000,000
Operating Expenses:
Gathering, processing, and transmission/Purchased oil and gas costs		95,000,000	131,000,000	258,000,000	347,000,000
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		177,000,000	165,000,000	351,000,000	337,000,000
Oil revenues | Oil and gas, excluding purchased
Segment Reporting Information [Line Items]
Total revenues		1,436,000,000	1,326,000,000	2,785,000,000	2,676,000,000
Oil revenues | Oil and gas, excluding purchased | Operating Segments | U.S.
Segment Reporting Information [Line Items]
Total revenues		550,000,000	473,000,000	1,055,000,000	912,000,000
Oil revenues | Oil and gas, excluding purchased | Operating Segments | Egypt
Segment Reporting Information [Line Items]
Total revenues		673,000,000	618,000,000	1,330,000,000	1,247,000,000
Oil revenues | Oil and gas, excluding purchased | Operating Segments | North Sea
Segment Reporting Information [Line Items]
Total revenues		213,000,000	235,000,000	400,000,000	517,000,000
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		19,000,000	24,000,000	40,000,000	50,000,000
Natural gas revenues | Oil and gas, excluding purchased
Segment Reporting Information [Line Items]
Total revenues		127,000,000	175,000,000	297,000,000	413,000,000
Natural gas revenues | Oil and gas, excluding purchased | Operating Segments | U.S.
Segment Reporting Information [Line Items]
Total revenues		7,000,000	46,000,000	58,000,000	131,000,000
Natural gas revenues | Oil and gas, excluding purchased | Operating Segments | Egypt
Segment Reporting Information [Line Items]
Total revenues		73,000,000	90,000,000	150,000,000	183,000,000
Natural gas revenues | Oil and gas, excluding purchased | Operating Segments | North Sea
Segment Reporting Information [Line Items]
Total revenues		47,000,000	39,000,000	89,000,000	99,000,000
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		100,000,000	99,000,000	217,000,000	217,000,000
Natural gas liquids revenues | Oil and gas, excluding purchased | Operating Segments | U.S.
Segment Reporting Information [Line Items]
Total revenues		93,000,000	95,000,000	201,000,000	203,000,000
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		7,000,000	4,000,000	16,000,000	14,000,000
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.