LAWSUITS, CLAIMS, COMMITMENTS AND CONTINGENCIES - LEGAL MATTERS (Details) $ in Millions		1 Months Ended		12 Months Ended
	Apr. 05, 2024 USD ($)	Jan. 31, 2024 company	Aug. 31, 2023 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) party	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Long-term Purchase Commitment [Line Items]
Remediation expenses				$ 76	$ 79	$ 65
Other operating and non-operating expense				1,581	$ 1,084	$ 1,271
Gains related to legal settlements	$ 182
Potential income tax expense				1,400
Related Party
Long-term Purchase Commitment [Line Items]
Other operating and non-operating expense				84
Anadarko Petroleum Corporation
Long-term Purchase Commitment [Line Items]
Tax refund							$ 881
Accrued interest on potential income tax expense				$ 760
Alden Leeds | Alden Leeds
Long-term Purchase Commitment [Line Items]
Number of parties, settled | party						85
Remediation expenses						$ 150
Number of companies excluded from settlement | company		3
Clean up costs percentage				85.00%
Increase in environmental remediation liability				$ 925
Additional losses				$ 900
Alden Leeds | Alden Leeds | Low end of range
Long-term Purchase Commitment [Line Items]
Remediation costs, period				10 years
Alden Leeds | Alden Leeds | High end of range
Long-term Purchase Commitment [Line Items]
Remediation costs, period				20 years
Maxus Filed Bankruptcy
Long-term Purchase Commitment [Line Items]
Proceeds from settlement			$ 350
Arbitration Demand Filed By Andes Petroleum Ecuador Ltd
Long-term Purchase Commitment [Line Items]
Gains related to legal settlements	$ 182
Tronox Settlement
Long-term Purchase Commitment [Line Items]
Payments for settlement								$ 5,200
Additional cash benefits realized from utilization of tax attributes from deduction of legal settlement								$ 500
Interest amount				$ 2,100