SEGMENT INFORMATION - Schedule of Summarized Financial Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Total operating revenues	$ 1,417	$ 2,118
Depreciation, depletion and amortization expense	262	313
Impairments	2,093	0
Operating income (loss)	(2,057)	606
Interest expense	35	36
Gain on derivatives	126	1,401
Gain (loss) on extinguishment of debt	0	(19)
Other loss, net	1	(1)
Provision from income taxes	(430)	12
Assets	10,398	12,937	$ 11,991
Capital investments	538	665
Increase (decrease) in accrued expenditures	14	(6)
Intersegment Revenues
Segment Reporting Information [Line Items]
Total operating revenues	(784)	(1,352)
Operating Segments
Segment Reporting Information [Line Items]
Depreciation, depletion and amortization expense	262	313
Impairments	2,093
Operating income (loss)	(2,057)	606
Interest expense	35	36
Gain on derivatives	126	1,401
Gain (loss) on extinguishment of debt		0
Other loss, net	1	(1)
Provision from income taxes	(430)	12
Assets	10,247	12,812
Capital investments	537	664
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Depreciation, depletion and amortization expense	0	0
Impairments	0
Operating income (loss)	0	0
Interest expense	0	0
Gain on derivatives	0	0
Gain (loss) on extinguishment of debt		(19)
Other loss, net	0	0
Provision from income taxes	0	0
Assets	151	125
Capital investments	1	1
E&P
Segment Reporting Information [Line Items]
Total operating revenues	838	1,439
E&P | Intersegment Revenues
Segment Reporting Information [Line Items]
Total operating revenues	14	10
E&P | Operating Segments
Segment Reporting Information [Line Items]
Total operating revenues	824	1,429
Depreciation, depletion and amortization expense	261	312
Impairments	2,093
Operating income (loss)	(2,061)	578
Interest expense	35	36
Gain on derivatives	126	1,401
Gain (loss) on extinguishment of debt		0
Other loss, net	1	(1)
Provision from income taxes	(430)	12
Assets	9,856	12,260
Capital investments	537	664
Marketing
Segment Reporting Information [Line Items]
Total operating revenues	579	679
Marketing | Intersegment Revenues
Segment Reporting Information [Line Items]
Total operating revenues	(798)	(1,362)
Marketing | Operating Segments
Segment Reporting Information [Line Items]
Total operating revenues	1,377	2,041
Depreciation, depletion and amortization expense	1	1
Impairments	0
Operating income (loss)	4	28
Interest expense	0	0
Gain on derivatives	0	0
Gain (loss) on extinguishment of debt		0
Other loss, net	0	0
Provision from income taxes	0	0
Assets	391	552
Capital investments	$ 0	$ 0