REVENUE RECOGNITION - Disaggregation of Revenue on Geographic Basis (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Total operating revenues	$ 1,083	$ 1,269	$ 2,500	$ 3,387
E&P
Disaggregation of Revenue [Line Items]
Total operating revenues	659	794	1,497	2,233
Operating Segments | E&P
Disaggregation of Revenue [Line Items]
Total operating revenues	642	777	1,466	2,206
Operating Segments | E&P | Appalachia
Disaggregation of Revenue [Line Items]
Total operating revenues	424	468	978	1,391
Operating Segments | E&P | Haynesville
Disaggregation of Revenue [Line Items]
Total operating revenues	$ 218	$ 309	$ 488	$ 815