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Pension Plans and Other Post Employment Benefit Plans Additional Information (Details) - USD ($) $ in Millions | 1 Months Ended | 5 Months Ended | 8 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Nov. 30, 2017 | Jun. 01, 2019 | Aug. 31, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2023
Defined Benefit and Contribution Disclosures [Line Items] |  |  |  |  |  |  |
Pre-tax cash requirements to cover actual net claims costs and related administrative expenses |  |  |  | $ 122 | $ 198 | $ 207 |
U.S. Retirement Savings Plan [Member] |  |  |  |  |  |  |
Defined Benefit and Contribution Disclosures [Line Items] |  |  |  |  |  |  |
Employer Matching Contribution, Percent of Match |  |  |  | 100.00% |  |  |
Employer Matching Contribution, Percent of Employees' Gross Pay |  |  |  | 6.00% |  |  |
Employer Discretionary Contribution Percent |  |  |  | 3.00% |  |  |
Defined Contribution Plan, Employer Contribution |  |  |  | $ 97 | 63 | 94 |
Employers Discretionary Contribution, Vesting Period |  |  |  | 3 years |  |  |
Corteva Other Contribution Plans [Member] |  |  |  |  |  |  |
Defined Benefit and Contribution Disclosures [Line Items] |  |  |  |  |  |  |
Defined Contribution Plan, Employer Contribution |  |  |  | $ 36 | 29 | $ 33 |
Pension Plan |  |  |  |  |  |  |
Defined Benefit and Contribution Disclosures [Line Items] |  |  |  |  |  |  |
Defined Benefit Plan, Unfunded Status of Plan |  |  |  | (1,398) | (1,948) |  |
Employer contributions |  |  |  | $ 60 | $ 49 |  |
Expected long-term rate of return on plan assets |  |  |  | 4.51% | 5.73% | 6.25% |
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] |  |  |  |  |  |  |
2021 |  |  |  | $ 1,267 |  |  |
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Assets Transferred to (from) Plan |  |  |  | 1,100 |  |  |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement |  |  |  | 25 | $ (1) | $ (3) |
Actuarial (gain) loss |  |  | $ 110 | (3,759) | (524) |  |
Other Post Employment Benefits Plan |  |  |  |  |  |  |
Defined Benefit and Contribution Disclosures [Line Items] |  |  |  |  |  |  |
Defined Benefit Plan, Unfunded Status of Plan |  |  |  | (1,021) | (1,362) |  |
Employer contributions |  |  |  | 122 | 198 |  |
Expected Future Employer Contributions, Next Fiscal Year |  |  |  |  |  |  | $ 135
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] |  |  |  |  |  |  |
2021 |  |  |  | 123 |  |  |
Defined Benefit Plan, Accumulated Benefit Obligation, Increase (Decrease) for Plan Amendment |  |  |  | 939 |  |  |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement |  |  |  | 0 | 0 | 0 |
Actuarial (gain) loss |  |  |  | (246) | (33) |  |
Other Pension Plan [Member] |  |  |  |  |  |  |
Defined Benefit and Contribution Disclosures [Line Items] |  |  |  |  |  |  |
Employer contributions |  |  |  | 60 | 49 | $ 62 |
Expected Future Employer Contributions, Next Fiscal Year |  |  |  |  |  |  | $ 50
Nonqualified Plan [Member] | Trust Agreement [Member] |  |  |  |  |  |  |
Defined Benefit and Contribution Disclosures [Line Items] |  |  |  |  |  |  |
Contributions to Trust | $ 571 |  |  |  |  |  |
Trust Asset Distribution |  | $ 39 |  | 58 | 43 |  |
Trust Asset |  |  |  | $ 304 | $ 251 |  |

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