FAIR VALUE MEASUREMENTS - Schedule of Recurring Measurements (Details) - Fair Value, Recurring - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Non-current assets- Other assets:
Assets:
Gross Amounts Offset in Balance Sheet	$ 0	$ 0
Investment	8	5
Commodity derivative instruments | Current assets- Derivative instruments:
Assets:
Total Gross Fair Value	274	88
Gross Amounts Offset in Balance Sheet	(106)	(71)
Net Fair Value Presented in Balance Sheet	168	17
Commodity derivative instruments | Non-current assets- Derivative instruments:
Assets:
Total Gross Fair Value	19	8
Gross Amounts Offset in Balance Sheet	(17)	(7)
Net Fair Value Presented in Balance Sheet	2	1
Commodity derivative instruments | Current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	121	111
Gross Amounts Offset in Balance Sheet	(106)	(71)
Net Fair Value Presented in Balance Sheet	15	40
Commodity derivative instruments | Non-current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	27	12
Gross Amounts Offset in Balance Sheet	(17)	(7)
Net Fair Value Presented in Balance Sheet	10	5
Interest rate swaps | Current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	28	46
Gross Amounts Offset in Balance Sheet	0	0
Net Fair Value Presented in Balance Sheet	28	46
Interest rate swaps | Non-current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	96	117
Gross Amounts Offset in Balance Sheet	0	0
Net Fair Value Presented in Balance Sheet	96	117
2026 WTI Contingent Liability | Non-current liabilities- Other long-term liabilities:
Liabilities:
Total Gross Fair Value	30
Gross Amounts Offset in Balance Sheet	0
Net Fair Value Presented in Balance Sheet	30
Level 1 | Non-current assets- Other assets:
Assets:
Investment	8	5
Level 1 | Commodity derivative instruments | Current assets- Derivative instruments:
Assets:
Total Gross Fair Value	0	0
Level 1 | Commodity derivative instruments | Non-current assets- Derivative instruments:
Assets:
Total Gross Fair Value	0	0
Level 1 | Commodity derivative instruments | Current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	0	0
Level 1 | Commodity derivative instruments | Non-current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	0	0
Level 1 | Interest rate swaps | Current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	0	0
Level 1 | Interest rate swaps | Non-current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	0	0
Level 1 | 2026 WTI Contingent Liability | Non-current liabilities- Other long-term liabilities:
Liabilities:
Total Gross Fair Value	0
Level 2 | Non-current assets- Other assets:
Assets:
Investment	0	0
Level 2 | Commodity derivative instruments | Current assets- Derivative instruments:
Assets:
Total Gross Fair Value	274	88
Level 2 | Commodity derivative instruments | Non-current assets- Derivative instruments:
Assets:
Total Gross Fair Value	19	8
Level 2 | Commodity derivative instruments | Current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	121	111
Level 2 | Commodity derivative instruments | Non-current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	27	12
Level 2 | Interest rate swaps | Current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	28	46
Level 2 | Interest rate swaps | Non-current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	96	117
Level 2 | 2026 WTI Contingent Liability | Non-current liabilities- Other long-term liabilities:
Liabilities:
Total Gross Fair Value	30
Level 3 | Non-current assets- Other assets:
Assets:
Investment	0	0
Level 3 | Commodity derivative instruments | Current assets- Derivative instruments:
Assets:
Total Gross Fair Value	0	0
Level 3 | Commodity derivative instruments | Non-current assets- Derivative instruments:
Assets:
Total Gross Fair Value	0	0
Level 3 | Commodity derivative instruments | Current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	0	0
Level 3 | Commodity derivative instruments | Non-current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	0	0
Level 3 | Interest rate swaps | Current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	0	0
Level 3 | Interest rate swaps | Non-current liabilities- Derivative instruments:
Liabilities:
Total Gross Fair Value	0	$ 0
Level 3 | 2026 WTI Contingent Liability | Non-current liabilities- Other long-term liabilities:
Liabilities:
Total Gross Fair Value	$ 0