INDUSTRY SEGMENTS AND GEOGRAPHIC AREAS - RESULTS OF OPERATIONS (Details) shares in Millions, $ in Millions	1 Months Ended	3 Months Ended			12 Months Ended
	Jul. 31, 2022 USD ($) shares	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2022 USD ($) segment shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($)
Segment Reporting [Abstract]
Number of operating segments | segment					3
Segment Information
Net sales					$ 36,634	$ 25,956	$ 17,809
Income (loss) from continuing operations before income taxes					14,117	3,705	(15,705)
Income tax (expense) benefit					(813)	(915)	2,172
Income (loss) from continuing operations					13,304	2,790	(13,533)
Investments in unconsolidated entities					3,176	2,938	3,250
Property, plant and equipment additions					4,566	2,931	2,619
Depreciation, depletion and amortization					6,926	8,447	8,097
Total assets					72,609	75,036	80,064
(Loss) gain on derivative instruments					317	122	(423)
Impairment and related charges			$ 8,600
Anadarko Acquisition-related costs					89	$ 153	339
WES | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Segment Information
Gain on sale	$ 62				$ 102
Number of shares sold (in shares) | shares	10.0				14.0	14.0
Impairment of equity method investment		$ 2,700
Goodwill derecognized				$ 1,200
Oil and gas
Segment Information
Impairment and related charges			$ 6,400	$ 581
Operating segments | Oil and gas
Segment Information
Net sales					$ 27,165	$ 18,941	13,066
Income (loss) from continuing operations before income taxes					12,803	4,145	(9,632)
Income tax (expense) benefit					0	0	0
Income (loss) from continuing operations					12,803	4,145	(9,632)
Investments in unconsolidated entities					142	154	168
Property, plant and equipment additions					3,898	2,458	2,279
Depreciation, depletion and amortization					6,179	7,741	7,414
Total assets					54,058	56,132	62,931
Pre-tax impairment charges						282
(Loss) gain on derivative instruments						(280)	1,100
Impairment and related charges							7,100
Pre-tax loss on sale of properties							1,600
Operating segments | Oil and gas | Permian Basin | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Segment Information
Gain (loss) on sale					148
Operating segments | Oil and gas | Colombia
Segment Information
(Loss) gain on derivative instruments							(353)
Operating segments | Oil and gas | Colombia | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Segment Information
Gain on sale					(55)
Operating segments | Chemical
Segment Information
Net sales					6,757	5,246	3,733
Income (loss) from continuing operations before income taxes					2,508	1,544	664
Income tax (expense) benefit					0	0	0
Income (loss) from continuing operations					2,508	1,544	664
Investments in unconsolidated entities					578	608	645
Property, plant and equipment additions					331	316	261
Depreciation, depletion and amortization					370	343	356
Total assets					4,558	4,671	4,326
Operating segments | Midstream and marketing
Segment Information
Net sales					4,136	2,863	1,768
Income (loss) from continuing operations before income taxes					273	257	(4,175)
Income tax (expense) benefit					0	0	0
Income (loss) from continuing operations					273	257	(4,175)
Investments in unconsolidated entities					2,456	2,176	2,437
Property, plant and equipment additions					270	107	50
Depreciation, depletion and amortization					328	325	312
Total assets					12,076	11,132	9,856
Operating segments | Midstream and marketing | WES | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Segment Information
Gain on sale					62	124
(Loss) gain on derivative instruments					$ (259)	$ (252)
Number of shares sold (in shares) | shares					10.0	11.5
Impairment of equity method investment							2,700
Goodwill derecognized							1,400
Equity method investment, loss from goodwill impairment							236
Operating segments | Midstream and marketing | Joint Venture | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Segment Information
Gain on sale					$ 36
Corporate and eliminations
Segment Information
Net sales					(1,424)	$ (1,094)	(758)
Income (loss) from continuing operations before income taxes					(1,467)	(2,241)	(2,562)
Income tax (expense) benefit					(813)	(915)	2,172
Income (loss) from continuing operations					(2,280)	(3,156)	(390)
Investments in unconsolidated entities					0	0	0
Property, plant and equipment additions					67	50	29
Depreciation, depletion and amortization					49	38	15
Total assets					1,917	3,101	2,951
Non-cash tax benefit					2,700
Mark to market gain (loss) on interest rate swaps					317	122	(428)
Gain (loss) on extinguishment of debt					149	(118)
Anadarko Acquisition-related costs					$ 89	$ 153	$ 339