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ACQUISITIONS, DIVESTITURES AND OTHER TRANSACTIONS - NARRATIVE (Details)
shares in Millions, $ in Millions
1 Months Ended 2 Months Ended 9 Months Ended 12 Months Ended 24 Months Ended
Dec. 31, 2023
USD ($)
Nov. 03, 2023
USD ($)
payment
Dec. 31, 2023
USD ($)
shares
Sep. 30, 2023
USD ($)
Jan. 31, 2022
USD ($)
Nov. 30, 2021
USD ($)
Oct. 31, 2021
USD ($)
Jul. 31, 2021
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2022
USD ($)
Sep. 30, 2021
USD ($)
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2021
USD ($)
shares
Nov. 03, 2025
USD ($)
Aug. 31, 2023
Jul. 31, 2023
Asset Acquisition, Disposition and Other Transactions [Line Items]                                  
Non-core proved and unproved properties sold       $ 202                          
Gain on disposition of assets       $ 142               $ 522 $ 308 $ 192      
Disposed of by sale | Permian Basin                                  
Asset Acquisition, Disposition and Other Transactions [Line Items]                                  
Proceeds received for divested assets         $ 190     $ 475                  
Gain on sale         $ 123                        
Disposed of by sale | DJ Basin                                  
Asset Acquisition, Disposition and Other Transactions [Line Items]                                  
Proceeds received for divested assets                 $ 280                
Disposed of by sale | Ghana Operations                                  
Asset Acquisition, Disposition and Other Transactions [Line Items]                                  
Proceeds received for divested assets             $ 555                    
Sale of assets             750                    
Settlement of certain tax claims related to historical operations in Ghana             $ 170                    
Disposal Group, Disposed of by Sale, Not Discontinued Operations | WES                                  
Asset Acquisition, Disposition and Other Transactions [Line Items]                                  
Gain on sale                       $ 51 $ 62 $ 102      
Number of shares sold (in shares) | shares                       5.1 10.0 14.0      
Net proceeds from sale of equity investment                         $ 250 $ 250      
Discontinued Operations | Ghana Operations                                  
Asset Acquisition, Disposition and Other Transactions [Line Items]                                  
After-tax loss contingency                     $ 31     $ 437      
Crownrock L.P.                                  
Asset Acquisition, Disposition and Other Transactions [Line Items]                                  
Consideration upon approval     $ 12,000                            
Issuance of shares upon approval (in shares) | shares     29.6                            
Crownrock L.P. | Existing Debt                                  
Asset Acquisition, Disposition and Other Transactions [Line Items]                                  
Issuance of debt upon approval     $ 1,200                            
Crownrock L.P. | High end of range | New Debt                                  
Asset Acquisition, Disposition and Other Transactions [Line Items]                                  
Issuance of debt upon approval     $ 9,100                            
Carbon Engineering, Ltd.                                  
Asset Acquisition, Disposition and Other Transactions [Line Items]                                  
Interest acquired, percent                               68.00%  
Cash consideration   $ 349                              
Equity interest in acquiree, percentage                                 32.00%
Equity interest in acquiree, remeasurement gain $ 283                                
Number of equal annual payments | payment   3                              
Carbon Engineering, Ltd. | Subsequent event | Forecast                                  
Asset Acquisition, Disposition and Other Transactions [Line Items]                                  
Cash consideration                             $ 1,100    
Permian EOR Business Unit                                  
Asset Acquisition, Disposition and Other Transactions [Line Items]                                  
Non-monetary exchange agreement value                       $ 120          
Business combination, contingent consideration, asset                   $ 340     340        
Net purchase price           $ 285                      
Permian Basin                                  
Asset Acquisition, Disposition and Other Transactions [Line Items]                                  
Net purchase price                   $ 400              
Pathway and Emerging Low Carbon Opportunities                                  
Asset Acquisition, Disposition and Other Transactions [Line Items]                                  
Net purchase price                         $ 350