SEGMENT INFORMATION - Schedule of Reconciliation of Revenue from Segments to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting, Revenue Reconciling Item [Line Items]
Oil, natural gas and natural gas liquids sales	$ 702	$ 412	$ 1,516	$ 841
Segment operating revenues	978	514	1,890	968
Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment operating revenues	714	418	1,544	854
Intersegment Eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Oil, natural gas and natural gas liquids sales	(9)	(4)	(23)	(10)
Operating Segments Excluding Intersegment Elimination
Segment Reporting, Revenue Reconciling Item [Line Items]
Other revenues and income	273	100	369	124
Total Reportable Segments \| Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Oil, natural gas and natural gas liquids sales	711	416	1,539	851
Other revenue	3	2	5	3
Segment operating revenues	714	418	1,544	854
Oil and Natural Gas \| Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Oil, natural gas and natural gas liquids sales	711	416	1,539	851
Other revenue	3	2	5	3
Segment operating revenues	714	418	1,544	854
Carbon Management \| Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Oil, natural gas and natural gas liquids sales	0	0	0	0
Other revenue	0	0	0	0
Segment operating revenues	$ 0	$ 0	$ 0	$ 0

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