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RELATED PARTY TRANSACTIONS - Schedules of Related Party Transactions (Details) - The Dow Chemical Company [Domain] - DuPont and its Affiliates - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Related Party Transaction [Line Items]    
Accounts and notes receivable - Other $ 89 $ 12
Accounts payable - Other 19 $ 11
Net sales 55  
Cost of sales $ 42