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Related Party Transactions (Notes) | 9 Months Ended
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Sep. 30, 2019
Related Party Transactions [Abstract] |
Related Party Transactions Disclosure [Text Block] | RELATED PARTIES Services Provided by and to Historical Dow and its affiliates Following the Merger and prior to the Dow Distribution, Corteva reports transactions with Historical Dow and its affiliates as related party transactions. At September 30, 2018 and December 31, 2018 there was $68 million and $110 million, respectively, due to Historical Dow and its affiliates, reflected in liabilities from discontinued operations - current. Purchases from Historical Dow and its affiliates were $42 million for the nine months ended September 30, 2019, and $41 million and $112 million for the three and nine months ended September 30, 2018, respectively. For the three and nine months ended September 30, 2018, DAS net transfers from Dow were $265 million and $288 million, respectively, reflected in Other, net in the Consolidated Statements of Equity. For the nine months ended September 30, 2019, DAS net transfers from Dow were $88 million. Transactions with DowDuPont In November 2017, DowDuPont's Board of Directors authorized an initial $4,000 million share repurchase program to buy back shares of DowDuPont common stock. The $4,000 million share repurchase program was completed in the third quarter of 2018. In February, May and August 2018, the DowDuPont Board declared first, second and third quarter dividends per share of DowDuPont common stock payable on March 15, 2018, June 15, 2018 and September 15, 2018, respectively. For the nine months ended September 30, 2018, EID declared and paid distributions to DowDuPont of $2,481 million, primarily to fund a portion of DowDuPont's first, second and third quarter share repurchases and dividend payments. In February 2019, the DowDuPont Board declared first quarter dividends per share of DowDuPont common stock payable on March 15, 2019. EID declared and paid distributions to DowDuPont of $317 million for the nine months ended September 30, 2019, primarily to fund a portion of DowDuPont's dividend payment. In addition, at December 31, 2018, and September 30, 2018, EID had a payable to DowDuPont of $103 million and $250 million included in accounts payable in the interim Condensed Consolidated Balance Sheets related to its estimated tax liability for the period beginning with the Merger through the date of the Dow Distribution, during which time the parties filed a consolidated United States ("U.S.") tax return. See Note 10 - Income Taxes, for additional information.

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- Definition The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -URI http://asc.fasb.org/topic&trid=2122745 + Details
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