REVENUE - DISAGGREGATION OF REVENUE (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 28,325	$ 36,234	$ 25,959
Operating segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	28,325	36,234	25,959
Operating segments | United States
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	24,736	32,020	22,787
Operating segments | International
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	4,488	5,638	4,266
Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(899)	(1,424)	(1,094)
Eliminations | United States
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0
Eliminations | International
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0
Oil and gas | Operating segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	21,284	27,165	19,285
Oil and gas | Operating segments | Oil
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	17,950	21,356	14,916
Oil and gas | Operating segments | NGL
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,991	3,052	2,528
Oil and gas | Operating segments | Gas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,305	2,733	1,815
Oil and gas | Operating segments | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	38	24	26
Oil and gas | Operating segments | United States
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	17,518	22,494	15,823
Oil and gas | Operating segments | United States | Oil
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	14,893	17,421	12,072
Oil and gas | Operating segments | United States | NGL
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,619	2,631	2,203
Oil and gas | Operating segments | United States | Gas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	970	2,422	1,524
Oil and gas | Operating segments | United States | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	36	20	24
Oil and gas | Operating segments | International
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	3,766	4,671	3,462
Oil and gas | Operating segments | International | Oil
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	3,057	3,935	2,844
Oil and gas | Operating segments | International | NGL
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	372	421	325
Oil and gas | Operating segments | International | Gas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	335	311	291
Oil and gas | Operating segments | International | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	2	4	2
Oil and gas | Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0
Oil and gas | Eliminations | Oil
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0
Oil and gas | Eliminations | NGL
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0
Oil and gas | Eliminations | Gas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0
Oil and gas | Eliminations | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0
Chemical | Operating segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	5,315	6,738	5,243
Chemical | Operating segments | United States
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	5,002	6,359	4,995
Chemical | Operating segments | International
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	313	379	248
Chemical | Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0
Midstream and marketing | Operating segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	2,625	3,755	2,525
Midstream and marketing | Operating segments | United States
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	2,216	3,167	1,969
Midstream and marketing | Operating segments | International
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	409	588	556
Midstream and marketing | Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 0	$ 0	$ 0