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Earnings Per Share (Notes) | 9 Months Ended
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Sep. 30, 2019
Earnings Per Share [Abstract] |
Earnings Per Share [Text Block] | EARNINGS PER SHARE OF COMMON STOCK On June 1, 2019, the date of the Corteva Distribution, 748,815,000 shares of the company’s common stock were distributed to DowDuPont shareholders of record as of May 24, 2019. The following tables provide earnings per share calculations for the periods indicated below:
Net (Loss) Income for Earnings Per Share Calculations - Basic and Diluted | Three Months Ended September 30, | Nine Months Ended September 30,
(In millions) | 2019 | 2018 | 2019 | 2018
Loss from continuing operations after income taxes | $ | (527 | ) | $ | (5,642 | ) | $ | (228 | ) | $ | (5,705 | )
Net (loss) income attributable to continuing operations noncontrolling interests | (11 | ) | 5 |  | 10 |  | 23 |
Loss from continuing operations available to Corteva common stockholders | (516 | ) | (5,647 | ) | (238 | ) | (5,728 | )
Income (loss) from discontinued operations, net of tax | 22 |  | 526 |  | (695 | ) | 1,200 |
Net income attributable to discontinued operations noncontrolling interests | — |  | — |  | 5 |  | 6 |
Income (loss) from discontinued operations available to Corteva common stockholders | 22 |  | 526 |  | (700 | ) | 1,194 |
Net loss available to common stockholders | $ | (494 | ) | $ | (5,121 | ) | $ | (938 | ) | $ | (4,534 | )
(Loss) Earnings Per Share Calculations - Basic | Three Months Ended September 30, | Nine Months Ended September 30,
(Dollars per share) | 2019 | 2018 | 2019 | 2018
Loss from continuing operations attributable to common stockholders | $ | (0.69 | ) | $ | (7.54 | ) | $ | (0.32 | ) | $ | (7.64 | )
Income (loss) from discontinued operations, net of tax | 0.03 |  | 0.71 |  | (0.93 | ) | 1.59 |
Net loss attributable to common stockholders | $ | (0.66 | ) | $ | (6.83 | ) | $ | (1.25 | ) | $ | (6.05 | )
(Loss) Earnings Per Share Calculations - Diluted | Three Months Ended September 30, | Nine Months Ended September 30,
(Dollars per share) | 2019 | 2018 | 2019 | 2018
Loss from continuing operations attributable to common stockholders | $ | (0.69 | ) | $ | (7.54 | ) | $ | (0.32 | ) | $ | (7.64 | )
Income (loss) from discontinued operations, net of tax | 0.03 |  | 0.71 |  | (0.93 | ) | 1.59 |
Net loss attributable to common stockholders | $ | (0.66 | ) | $ | (6.83 | ) | $ | (1.25 | ) | $ | (6.05 | )
Share Count Information | Three Months Ended September 30, | Nine Months Ended September 30,
(Shares in millions) | 2019 | 2018 | 2019 | 2018
Weighted-average common shares - basic 1 | 749.5 |  | 749.4 |  | 749.4 |  | 749.4 |
Plus dilutive effect of equity compensation plans 2 | — |  | — |  | — |  | — |
Weighted-average common shares - diluted | 749.5 |  | 749.4 |  | 749.4 |  | 749.4 |
Stock options and restricted stock units excluded from EPS calculations 3 | 13.8 |  | — |  | 13.8 |  | — |
1. | Share amounts for the three and nine months ended September 30, 2018, were based on 748.8 million shares of Corteva, Inc. common stock distributed to holders of DowDuPont's common stock on June 1, 2019, plus 0.6 million of additional shares in which accelerated vesting conditions have been met.
2. | 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.
3. These outstanding options to purchase shares of common stock 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 The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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