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Supplementary Information Foreign Currency Exchange Gain (Loss) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Foreign Currency Exchange Gain (Loss) [Line Items] |  |  |  |
Pre-tax exchange (loss) gain | [1] | $ (284) | $ (397) | $ (229)
Tax benefits (expenses) on exchange (loss) gain |  | 37 | 62 | (5)
Net after-tax exchange (loss) gain |  | (247) | (335) | (234)
EIDP |  |  |  |
Foreign Currency Exchange Gain (Loss) [Line Items] |  |  |  |
Net after-tax exchange (loss) gain |  | 1 | 0 | 0
Corteva [Member] |  |  |  |
Foreign Currency Exchange Gain (Loss) [Line Items] |  |  |  |
Net after-tax exchange (loss) gain |  | (246) | (335) | (234)
Subsidiary Monetary Position |  |  |  |
Foreign Currency Exchange Gain (Loss) [Line Items] |  |  |  |
Pre-tax exchange (loss) gain |  | (152) | (371) | (217)
Tax benefits (expenses) on exchange (loss) gain |  | 11 | 55 | (10)
Net after-tax exchange (loss) gain |  | (141) | (316) | (227)
Hedging Program [Member] |  |  |  |
Foreign Currency Exchange Gain (Loss) [Line Items] |  |  |  |
Pre-tax exchange (loss) gain |  | (132) | (26) | (12)
Tax benefits (expenses) on exchange (loss) gain |  | 26 | 7 | 5
Net after-tax exchange (loss) gain |  | (106) | (19) | (7)
Argentine peso devaluation [Member] | Hedging Program [Member] |  |  |  |
Foreign Currency Exchange Gain (Loss) [Line Items] |  |  |  |
Pre-tax exchange (loss) gain |  | $ (66) | $ (284) | $ (110)
[1] | Includes net pre-tax exchange gains (losses) of $(66) million, $(284) million, and $(110) million associated with impacts from the devaluation of the Argentine peso for the years ended December 31, 2024, 2023 and 2022, respectively.

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- Definition Amount, after tax, of realized and unrealized gain (loss) from foreign currency transaction. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 205 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478009/946-205-45-3 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 830 -Name Accounting Standards Codification -Section 45 -Paragraph 38 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477346/946-830-45-38 + Details
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