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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2021
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
Net Income for Earnings Per Share Calculations - Basic and Diluted | Three Months Ended June 30, | Six Months Ended June 30, |
(In millions) | 2021 | 2020 | 2021 | 2020 |  |
Income from continuing operations after income taxes | $ | 1,018 |  | $ | 766 |  | $ | 1,631 |  | $ | 1,047 |  |  |
Net income attributable to continuing operations noncontrolling interests | 3 |  | 6 |  | 6 |  | 16 |  |  |
Income from continuing operations available to Corteva common stockholders | 1,015 |  | 760 |  | 1,625 |  | 1,031 |  |  |
(Loss) income from discontinued operations available to Corteva common stockholders | (45) |  | — |  | (55) |  | 1 |  |  |
Net income available to common stockholders | $ | 970 |  | $ | 760 |  | $ | 1,570 |  | $ | 1,032 |  |  |
Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table Text Block] |
Earnings Per Share Calculations - Basic | Three Months Ended June 30, | Six Months Ended June 30,
(Dollars per share) | 2021 | 2020 | 2021 | 2020
Earnings per share of common stock from continuing operations | $ | 1.37 |  | $ | 1.01 |  | $ | 2.19 |  | $ | 1.37 |
Loss per share of common stock from discontinued operations | (0.06) |  | — |  | (0.07) |  | — |
Earnings per share of common stock | $ | 1.31 |  | $ | 1.01 |  | $ | 2.12 |  | $ | 1.37 |
Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table Text Block] |
Earnings Per Share Calculations - Diluted | Three Months Ended June 30, | Six Months Ended June 30,
(Dollars per share) | 2021 | 2020 | 2021 | 2020
Earnings per share of common stock from continuing operations | $ | 1.37 |  | $ | 1.01 |  | $ | 2.18 |  | $ | 1.37 |
Loss per share of common stock from discontinued operations | (0.06) |  | — |  | (0.07) |  | — |
Earnings per share of common stock | $ | 1.31 |  | $ | 1.01 |  | $ | 2.11 |  | $ | 1.37 |
Share Count Information |
Share Count Information | Three Months Ended June 30, | Six Months Ended June 30,
(Shares in millions) | 2021 | 2020 | 2021 | 2020
Weighted-average common shares - basic | 737.3 |  | 749.2 |  | 740.3 |  | 749.6 |
Plus dilutive effect of equity compensation plans 1 | 6.0 |  | 2.4 |  | 6.1 |  | 2.4 |
Weighted-average common shares - diluted | 743.3 |  | 751.6 |  | 746.4 |  | 752.0 |
Potential shares of common stock excluded from EPS calculations 2 | 2.1 |  | 11.9 |  | 2.1 |  | 11.0 |
1.Diluted earnings per share considers the impact of potentially dilutive securities except in periods in which there is a loss because the inclusion of the potential common shares would have an anti-dilutive effect. 2.These outstanding potential shares of common stock relating to stock options, restricted stock units and performance-based restricted stock units were excluded from the calculation of diluted earnings per share because the effect of including them would have been anti-dilutive.

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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