Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	INCOME TAXES For periods between the Merger Effectiveness Time and the Corteva Distribution, Corteva and its subsidiaries were included in DowDuPont's consolidated federal income tax group and consolidated tax return. Generally, the consolidated tax liability of the DowDuPont U.S. tax group for each year was apportioned among the members of the consolidated group based on each member’s separate taxable income. Corteva, DuPont and Dow intend that to the extent Federal and/or State corporate income tax liabilities are reduced through the utilization of tax attributes of the other, settlement of any receivable and payable generated from the use of the other party’s sub-group attributes will be in accordance with a tax matters agreement. See Note 3 - Divestitures and Other Transactions, for further information related to indemnifications between Corteva, DuPont and Dow. Each year the company files hundreds of tax returns in the various national, state and local income taxing jurisdictions in which it operates. These tax returns are subject to examination and possible challenge by the tax authorities. Positions challenged by the tax authorities may be settled or appealed by the company. As a result, there is an uncertainty in income taxes recognized in the company's financial statements in accordance with accounting for income taxes and accounting for uncertainty in income taxes. The ultimate resolution of such uncertainties is not expected to have a material impact on the company's results of operations. During the three and nine months ended September 30, 2021, the company recognized $32 million and $58 million, respectively, of net tax benefits to provision for income taxes on continuing operations associated with changes in accruals for certain prior year tax positions in various jurisdictions, including a $22 million tax benefit associated with U.S. research and development tax credits. During the nine months ended September 30, 2020, the company recognized a tax benefit of $51 million to provision for income taxes on continuing operations related to a return to accrual adjustment associated with an elective change in accounting method for the 2019 tax year impact of the 2017 Tax Cuts and Jobs Act 's (“The Act”) foreign tax provisions. During the nine months ended September 30, 2020 the company recognized a tax benefit of $14 million to provision for income taxes on continuing operations related to a return to accrual adjustment to reflect a change in estimate on the impact of a tax law enactment in a foreign jurisdiction. The company routinely uses foreign currency exchange contracts to offset its net exposures, by currency, related to the foreign currency-denominated monetary assets and liabilities. The objective of the program, which resides in the U.S., is to maintain an approximately balanced position in foreign currencies in order to minimize, on an after-tax basis, the effects of exchange rate changes on net monetary asset positions, which can drive material impacts on the company's effective tax rate. For further discussion of pre-tax and after-tax impacts of the company's foreign currency hedging program and net monetary asset programs, refer to Note 6 - Supplementary Information.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.