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Segment Reporting Significant Items (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Segment Reporting Information [Line Items] |  |  |
Restructuring and Asset related charges, net |  | $ 100 | $ 70
Significant Items |  | 100 | 123
Net exchange gains (losses) | [1] | (35) | (61)
Hedging Program [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net exchange gains (losses) |  | 16 | 165
Argentine Peso Devaluation [Member] | Hedging Program [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net exchange gains (losses) |  | (23) | (9)
Segment Reconciling Items [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Restructuring and Asset related charges, net | [2] | (100) | (70)
Significant Items |  | (100) | (123)
Net exchange gains (losses) |  | 35 | 61
Segment Reconciling Items [Member] | La Porte [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Loss on Divestiture | [3] |  | (53)
Segment Reconciling Items [Member] | Seed [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Restructuring and Asset related charges, net | [2] | (21) | (10)
Significant Items |  | (21) | (10)
Segment Reconciling Items [Member] | Crop Protection [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Restructuring and Asset related charges, net | [2] | (32) | (18)
Loss on Divestiture |  | (53) |
Significant Items |  | (32) | (71)
Segment Reconciling Items [Member] | Crop Protection [Member] | La Porte [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Loss on Divestiture | [3] |  | (53)
Segment Reconciling Items [Member] | Corporate |  |  |
Segment Reporting Information [Line Items] |  |  |
Restructuring and Asset related charges, net | [2] | (47) | (42)
Significant Items |  | $ (47) | $ (42)
[1] | Includes net pre-tax exchange losses of $(23) million and $(9) million associated with the devaluation of the Argentine peso for the three months ended March 31, 2021 and 2020, respectively.
[2] | Includes Board approved restructuring plans and asset related charges as well as accelerated prepaid amortization expense. See Note 5 - Restructuring and Asset Related Charges - Net, to the interim Consolidated Financial Statements for additional information.
[3] | Includes a loss recorded in other income - net related to the sale of the La Porte site.

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