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ACQUISITIONS, DIVESTITURES AND OTHER TRANSACTIONS - NARRATIVE (Details)
shares in Millions, a in Millions, $ in Millions
1 Months Ended 2 Months Ended 9 Months Ended 12 Months Ended
Jul. 31, 2022
USD ($)
shares
Jan. 31, 2022
USD ($)
Nov. 30, 2021
USD ($)
Dec. 31, 2020
USD ($)
Oct. 31, 2020
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2020
USD ($)
Sep. 30, 2021
USD ($)
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2021
USD ($)
shares
Aug. 31, 2020
USD ($)
a
Permian Basin | Disposed of by sale                      
Asset Acquisition, Disposition and Other Transactions [Line Items]                      
Proceeds received for divested assets   $ 190                  
Gain on sale   $ 123                  
WES | Disposal Group, Disposed of by Sale, Not Discontinued Operations                      
Asset Acquisition, Disposition and Other Transactions [Line Items]                      
Gain on sale $ 62               $ 102    
Number of shares sold (in shares) | shares 10.0               14.0 14.0  
Net proceeds from sale of equity investment $ 250               $ 250 $ 250  
Non-core Permian acreage | Disposed of by sale                      
Asset Acquisition, Disposition and Other Transactions [Line Items]                      
Loss on sale             $ 820        
Oil and Gas Columbia Assets | Disposed of by sale                      
Asset Acquisition, Disposition and Other Transactions [Line Items]                      
Loss on sale       $ 353              
Wyoming, Colorado, and Utah Assets | Disposed of by sale                      
Asset Acquisition, Disposition and Other Transactions [Line Items]                      
Proceeds received for divested assets         $ 1,000            
Loss on sale         440            
Area of land sold (in acres) | a                     4.5
Area of fee surface acres (in acres) | a                     1.0
Sale consideration                     $ 1,330
Liabilities associated with sale         $ 329            
Ghana Operations | Discontinued Operations                      
Asset Acquisition, Disposition and Other Transactions [Line Items]                      
After-tax loss contingency               $ 31   $ 437  
Permian EOR Business Unit                      
Asset Acquisition, Disposition and Other Transactions [Line Items]                      
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