v3.26.1
GENERAL - Narrative (Details) - USD ($)
shares in Millions, $ in Millions
1 Months Ended 6 Months Ended
Jan. 02, 2026
Feb. 28, 2026
Oct. 31, 2025
Jun. 30, 2026
Dec. 31, 2025
Summary of Significant Accounting Policies [Line Items]          
Non-voting limited partner interest       1.90%  
Noncontrolling interest       $ 635 $ 564
Trade receivables, net of reserves       3,142 $ 2,575
BlackRock, Inc.          
Summary of Significant Accounting Policies [Line Items]          
Contributions amount       50  
Distributions       (12)  
Discontinued Operations, Disposed of by Sale | OxyChem          
Summary of Significant Accounting Policies [Line Items]          
Proceeds received for divested assets $ 9,500   $ 9,500    
Variable Interest Entity, Primary Beneficiary          
Summary of Significant Accounting Policies [Line Items]          
Construction in progress       1,300  
BlackRock, Inc.          
Summary of Significant Accounting Policies [Line Items]          
Equity method investment commitments       $ 550  
WES Midstream          
Summary of Significant Accounting Policies [Line Items]          
Limited partner interest       36.40%  
Equity method investment ownership percentage       39.00%  
WES Midstream          
Summary of Significant Accounting Policies [Line Items]          
Non-voting general partner interest       2.10%  
Limited partnership number of shares transferred (in shares)   15.3      
Impairment   $ 105      
Recognized a gain for ownership reduction       $ 220