Income Taxes Income Taxes - Reconciliation to US Statutory Rate (Details) - Continuing Operations [Member] - USD ($) $ in Millions |
12 Months Ended | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
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| Statutory U.S. federal income tax rate | 21.00% | 21.00% | 21.00% | ||||||||||||||
| Effective tax rates on international operations - net | [1],[2] | 4.80% | (1.80%) | (1.00%) | |||||||||||||
| Acquisitions, divestitures, and ownership restructuring activities | [3] | (1.10%) | 3.60% | (5.40%) | |||||||||||||
| U.S. research and development credit | (4.70%) | (5.90%) | (2.20%) | ||||||||||||||
| Exchange gains/losses | [4] | 1.70% | 2.00% | 3.70% | |||||||||||||
| State and Local Income Taxes - net | 1.30% | 0.90% | 0.30% | ||||||||||||||
| Impact of Swiss Tax Changes | [5] | 0.00% | (7.90%) | 0.00% | |||||||||||||
| Excess tax benefits (tax deficiency) from stock-compensation | (0.20%) | (0.50%) | (0.70%) | ||||||||||||||
| Tax settlements and expiration of statue of limitations | (1.70%) | (0.30%) | 0.10% | ||||||||||||||
| Impact of Brazil valuation allowance | [2],[6] | 9.40% | 0.00% | (2.50%) | |||||||||||||
| Repatriation of Foreign Earnings | [7] | 1.70% | 2.90% | 1.70% | |||||||||||||
| Other, net | 0.10% | (0.10%) | (0.30%) | ||||||||||||||
| Effective Income Tax Rate | 32.30% | 13.90% | 14.70% | ||||||||||||||
| Deferred Other Tax Expense (Benefit) | $ (62) | ||||||||||||||||
| Intellectual Property Realigment | |||||||||||||||||
| Other Tax (Benefit) Expense | 46 | ||||||||||||||||
| Deferred Tax Assets due to change in Entity's Tax Characterization [Member] | |||||||||||||||||
| Other Tax (Benefit) Expense | $ (55) | ||||||||||||||||
| Worthless Stock Deduction | |||||||||||||||||
| Other Tax (Benefit) Expense | (42) | ||||||||||||||||
| Tax Currency Change | |||||||||||||||||
| Other Tax (Benefit) Expense | $ (24) | ||||||||||||||||
| Brazil Valuation Allowance [Member] | Seed [Member] | |||||||||||||||||
| Other Tax (Benefit) Expense | $ 120 | ||||||||||||||||
| Brazil Valuation Allowance [Member] | Crop Protection [Member] | |||||||||||||||||
| Other Tax (Benefit) Expense | $ (36) | ||||||||||||||||
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