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LAWSUITS, CLAIMS, COMMITMENTS AND CONTINGENCIES (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Apr. 05, 2024
Jun. 30, 2023
Mar. 31, 2021
Mar. 31, 2024
Dec. 31, 2021
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Federal                
Lawsuits, commitments and contingencies                
Potential cash tax       $ 1,400        
State                
Lawsuits, commitments and contingencies                
Potential cash tax       28        
Anadarko                
Lawsuits, commitments and contingencies                
Tentative cash tax refund             $ 881  
Potential accrued interest       622        
Arbitration filed by Andes Petroleum Ecuador Ltd                
Lawsuits, commitments and contingencies                
Proceeds from settlement             $ 1,000  
Recovery of amount awarded in settlement amount (as a percent)             60.00%  
Percentage of judgment amount claimed         40.00% 40.00%    
Own economic interest (as a percent)           60.00%    
Amount awarded to other party in litigation     $ 391          
Litigation settlement interest   $ 166            
Arbitration filed by Andes Petroleum Ecuador Ltd | Subsequent Event                
Lawsuits, commitments and contingencies                
Gains related to legal settlements $ 182              
Tronox Settlement                
Lawsuits, commitments and contingencies                
Payments for settlement               $ 5,200
Additional cash benefits realized from utilization of tax attributes from deduction of legal settlement       $ 500