Related Party Transactions Dow Intercompany Transactions (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Corteva [Member] \| EID [Member]
Related Party Transaction [Line Items]
Interest Expense, Related Party	$ 14	$ 11	$ 33	$ 39

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.

No definition available.

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