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REVENUE - Schedule of Revenue from Customers by Segment, Product, and Geographical Area (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of revenue
Revenue from customers	$ 6,911	$ 6,731
Operating segments
Disaggregation of revenue
Revenue from customers	6,911	6,731
Operating segments | United States
Disaggregation of revenue
Revenue from customers	6,115	5,832
Operating segments | International
Disaggregation of revenue
Revenue from customers	1,067	1,124
Eliminations
Disaggregation of revenue
Revenue from customers	(271)	(225)
Eliminations | United States
Disaggregation of revenue
Revenue from customers	0	0
Eliminations | International
Disaggregation of revenue
Revenue from customers	0	0
Oil and gas | Operating segments
Disaggregation of revenue
Revenue from customers	5,683	4,915
Oil and gas | Operating segments | Oil
Disaggregation of revenue
Revenue from customers	4,505	4,121
Oil and gas | Operating segments | NGL
Disaggregation of revenue
Revenue from customers	674	515
Oil and gas | Operating segments | Gas
Disaggregation of revenue
Revenue from customers	465	274
Oil and gas | Operating segments | Other
Disaggregation of revenue
Revenue from customers	39	5
Oil and gas | Operating segments | United States
Disaggregation of revenue
Revenue from customers	4,827	3,957
Oil and gas | Operating segments | United States | Oil
Disaggregation of revenue
Revenue from customers	3,830	3,349
Oil and gas | Operating segments | United States | NGL
Disaggregation of revenue
Revenue from customers	578	416
Oil and gas | Operating segments | United States | Gas
Disaggregation of revenue
Revenue from customers	381	187
Oil and gas | Operating segments | United States | Other
Disaggregation of revenue
Revenue from customers	38	5
Oil and gas | Operating segments | International
Disaggregation of revenue
Revenue from customers	856	958
Oil and gas | Operating segments | International | Oil
Disaggregation of revenue
Revenue from customers	675	772
Oil and gas | Operating segments | International | NGL
Disaggregation of revenue
Revenue from customers	96	99
Oil and gas | Operating segments | International | Gas
Disaggregation of revenue
Revenue from customers	84	87
Oil and gas | Operating segments | International | Other
Disaggregation of revenue
Revenue from customers	1	0
Oil and gas | Eliminations
Disaggregation of revenue
Revenue from customers	0	0
Oil and gas | Eliminations | Oil
Disaggregation of revenue
Revenue from customers	0	0
Oil and gas | Eliminations | NGL
Disaggregation of revenue
Revenue from customers	0	0
Oil and gas | Eliminations | Gas
Disaggregation of revenue
Revenue from customers	0	0
Oil and gas | Eliminations | Other
Disaggregation of revenue
Revenue from customers	0	0
Chemical | Operating segments
Disaggregation of revenue
Revenue from customers	1,187	1,185
Chemical | Operating segments | United States
Disaggregation of revenue
Revenue from customers	1,114	1,115
Chemical | Operating segments | International
Disaggregation of revenue
Revenue from customers	73	70
Chemical | Eliminations
Disaggregation of revenue
Revenue from customers	0	0
Midstream and marketing | Operating segments
Disaggregation of revenue
Revenue from customers	312	856
Midstream and marketing | Operating segments | United States
Disaggregation of revenue
Revenue from customers	174	760
Midstream and marketing | Operating segments | International
Disaggregation of revenue
Revenue from customers	138	96
Midstream and marketing | Eliminations
Disaggregation of revenue
Revenue from customers	$ 0	$ 0

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