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COMMITMENTS AND CONTINGENCIES (Guarantees) (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Guarantees [Abstract]      
Long-term debt $ 14,511 $ 16,951  
Sadara Chemical Company      
Guarantees [Abstract]      
Ownership interest 35.00% 35.00% 35.00%
Sadara Chemical Company | Total Project Financing      
Guarantees [Abstract]      
Maximum future payments $ 446    
Principal amount 12,500    
Long-term debt 9,600 $ 9,900  
Guarantees      
Guarantees [Abstract]      
Maximum future payments 1,273 251  
Recorded liability 220 $ 2  
Guarantees | Sadara Chemical Company      
Guarantees [Abstract]      
Maximum future payments 220    
Guarantees | Sadara Chemical Company | Sadara Chemical Company      
Guarantees [Abstract]      
Maximum future payments 500    
Guarantees | Sadara Chemical Company | Sadara Chemical Company      
Guarantees [Abstract]      
Maximum future payments $ 1,300