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Asset Impairment, Exit, and Restructuring Costs (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Asset Impairment Charges And Exit Costs [Line Items] |  |  |
Restructuring Charges | $ 26 | $ 161 | $ 29
Other Asset Impairment Charges | 28 | 131 | 121
Goodwill and Intangible Asset Impairment | 26 | 11 | 9
Corporate [Member] |  |  |
Asset Impairment Charges And Exit Costs [Line Items] |  |  |
Restructuring Charges | 9 | 159 | 24
Other Asset Impairment Charges | 7 |  | 49
Ag Services and Oilseeds [Member] |  |  |
Asset Impairment Charges And Exit Costs [Line Items] |  |  |
Other Asset Impairment Charges | 8 | 130 | 61
Goodwill and Intangible Asset Impairment | 26 |  |
Carbohydrate Solutions [Member] |  |  |
Asset Impairment Charges And Exit Costs [Line Items] |  |  |
Other Asset Impairment Charges |  | $ 1 |
Nutrition [Member] |  |  |
Asset Impairment Charges And Exit Costs [Line Items] |  |  |
Other Asset Impairment Charges | 13 |  | $ 11
All Reportable Segments [Member] |  |  |
Asset Impairment Charges And Exit Costs [Line Items] |  |  |
Restructuring Charges | $ 17 |  |

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- Definition Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. + References No definition available. + Details
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- Definition The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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