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NONCONSOLIDATED AFFILIATES AND RELATED COMPANY TRANSACTIONS, Schedule of the Company's Direct or Indirect Ownership Interest in Principal Nonconsolidated Affiliates (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Jun. 01, 2016
May 31, 2016
Dec. 23, 2015
May 05, 2015
Schedule of Equity Method Investments [Line Items]              
Investment in nonconsolidated affiliates $ 3,742 $ 3,747          
Equity Method Investment, Liability, Noncurrent (752) (1,030)          
Equity Method Investment, Net of Investment Liabilities 2,990 2,717          
Equity in earnings of nonconsolidated affiliates $ 762 $ 442 $ 674        
Dow Corning Corporation [Member]              
Schedule of Equity Method Investments [Line Items]              
Equity Method Investment, Ownership Percentage     50.00% 100.00% 50.00%    
Investment in nonconsolidated affiliates       $ 1,968      
EQUATE Petrochemical Company K.S.C. [Member]              
Schedule of Equity Method Investments [Line Items]              
Equity Method Investment, Ownership Percentage 42.50% 42.50% 42.50%     42.50%  
Equity Method Investment, Liability, Noncurrent $ 42 $ (128)          
DC HSC Holdings LLC [Member] [Member]              
Schedule of Equity Method Investments [Line Items]              
Equity Method Investment, Ownership Percentage 50.00% 50.00%          
Hemlock Semiconductor LLC [Member]              
Schedule of Equity Method Investments [Line Items]              
Equity Method Investment, Ownership Percentage 50.10% 50.10%          
Equity Method Investment, Liability, Noncurrent $ 752 $ 902          
The Kuwait Olefins Company K.S.C. [Member]              
Schedule of Equity Method Investments [Line Items]              
Equity Method Investment, Ownership Percentage 42.50% 42.50% 42.50%        
The Kuwait Styrene Company KSC [Member]              
Schedule of Equity Method Investments [Line Items]              
Equity Method Investment, Ownership Percentage 42.50% 42.50% 42.50%        
Map Ta Phut Olefins Company [Domain]              
Schedule of Equity Method Investments [Line Items]              
Equity Method Investment, Ownership Percentage 32.77% 32.77% 32.77%        
Sadara Chemical Company [Member]              
Schedule of Equity Method Investments [Line Items]              
Equity Method Investment, Ownership Percentage 35.00% 35.00% 35.00%        
Siam Polyethylene Company Limited [Member]              
Schedule of Equity Method Investments [Line Items]              
Equity Method Investment, Ownership Percentage 50.00% 50.00% 50.00%        
Siam Polystyrene Company Limited [Member]              
Schedule of Equity Method Investments [Line Items]              
Equity Method Investment, Ownership Percentage 50.00% 50.00% 50.00%        
Siam Styrene Monomer Co, Ltd [Member]              
Schedule of Equity Method Investments [Line Items]              
Equity Method Investment, Ownership Percentage 50.00% 50.00% 50.00%        
Siam Synthetic Latex Company Limited [Member]              
Schedule of Equity Method Investments [Line Items]              
Equity Method Investment, Ownership Percentage 50.00% 50.00% 50.00%        
Univation Technologies, LLC [Member]              
Schedule of Equity Method Investments [Line Items]              
Equity Method Investment, Ownership Percentage             50.00%
Investment in nonconsolidated affiliates             $ 159
Principal Nonconsolidated Affiliates [Member]              
Schedule of Equity Method Investments [Line Items]              
Investment in nonconsolidated affiliates $ 3,323 $ 3,029          
Equity Method Investment, Liability, Noncurrent (752) (1,030)          
Equity Method Investment, Net of Investment Liabilities 2,571 1,999          
Equity in earnings of nonconsolidated affiliates $ 701 $ 449 $ 704