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INVESTMENTS IN RELATED COMPANIES (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Mar. 31, 2019
Feb. 15, 2019
Schedule of Investments [Line Items]        
Investments in related companies $ 237 $ 237    
Dow International Holdings Company [Member]        
Schedule of Investments [Line Items]        
Ownership Interest Percentage, Related Company 5.00% 5.00% 4.70% 11.90%
Equity Securities without Readily Determinable Fair Value, Amount $ 232 $ 232    
Dow Quimica Mexicana S.A. de C.V. [Member]        
Schedule of Investments [Line Items]        
Ownership Interest Percentage, Related Company 14.00% 15.00%    
Equity Securities without Readily Determinable Fair Value, Amount $ 5 $ 5