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RELATD PARTY TRANSACTIONS (Details) - The Dow Chemical Company [Domain] - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2020
Sep. 30, 2019
Dow Inc. [Member]      
Cash Dividends Paid to Related Party $ 513 $ 1,685  
DowDuPont [Member]      
Cash Dividends Paid to Related Party     $ 535
DuPont and its Affiliates [Member]      
Net sales     12
Related Party Costs     $ 9