v3.26.1
GENERAL - Narrative (Details) - USD ($)
shares in Millions, $ in Millions
1 Months Ended 3 Months Ended
Jan. 02, 2026
Feb. 28, 2026
Oct. 31, 2025
Mar. 31, 2026
Dec. 31, 2025
Summary of Significant Accounting Policies [Line Items]          
Non-voting limited partner interest       2.00%  
Noncontrolling interest       $ 628 $ 564
Trade receivables, net of reserves       3,677 $ 2,575
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       1,200  
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       38.20%  
Equity method investment ownership percentage       40.80%  
WES Midstream          
Summary of Significant Accounting Policies [Line Items]          
Non-voting general partner interest       2.20%  
Limited partnership number of shares transferred (in shares)   15.3      
Impairment   $ 105