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Segment Reporting Significant Items (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |  |
Restructuring and Asset related charges, net |  | $ 26 | $ 49 | $ 261 | $ 298
Significant Items |  | (21) | 49 | 214 | 351
Net exchange gains (losses) | [1] | 2 | (67) | (47) | (127)
Hedging Program [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net exchange gains (losses) |  | 34 | (6) | 0 | 173
Argentine Peso Devaluation [Member] | Hedging Program [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net exchange gains (losses) |  | (16) | (26) | (53) | (56)
Segment Reconciling Items [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Restructuring and Asset related charges, net | [2] | (26) | (49) | (261) | (298)
Equity securities mark-to-market gain |  | 47 |  | 47 |
Loss on Divestiture | [3] |  |  |  | (53)
Significant Items |  | 21 | (49) | (214) | (351)
Net exchange gains (losses) |  | (2) | 67 | 47 | 127
Segment Reconciling Items [Member] | Seed [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Restructuring and Asset related charges, net | [2] | (9) | (9) | (145) | (154)
Equity securities mark-to-market gain |  | 47 |  | 47 |
Significant Items |  | 38 | (9) | (98) | (154)
Segment Reconciling Items [Member] | Crop Protection [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Restructuring and Asset related charges, net | [2] | (8) | (40) | (51) | (98)
Equity securities mark-to-market gain |  | 0 |  | 0 |
Loss on Divestiture |  |  |  |  | (53)
Significant Items |  | (8) | (40) | (51) | (151)
Segment Reconciling Items [Member] | Crop Protection [Member] | Sale of JV [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] | (9) | 0 | (65) | (46)
Equity securities mark-to-market gain |  | 0 |  | 0 |
Significant Items |  | $ (9) | $ 0 | $ (65) | $ (46)
[1] | Includes net pre-tax exchange losses of $(16) million and $(53) million associated with the devaluation of the Argentine peso for the three and nine months ended September 30, 2021, respectively, and $(26) million and $(56) million for the three and nine months ended September 30, 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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