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Related Party Transactions Dow Intercompany Transactions (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Dow [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Purchases from Historical Dow and affiliates |  |  |  | $ 42
Corteva [Member] | EID [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Interest Expense, Related Party | $ 19 | $ 39 | $ 82 | $ 69

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References No definition available. + Details
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- Details
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- Details
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- Details
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