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Goodwill and Other Intangible Assets Goodwill by Segment (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Goodwill [Line Items] |  |  |  |
Goodwill Beginning Balance | $ 10,269 |  | $ 10,229 |
Currency Translation Adjustment | (160) |  | 69 |
Other goodwill adjustments and acquisitions | (2) | [1] | (29) | [2]
Goodwill Ending Balance | 10,107 |  | 10,269 |
Accumulated impairment losses on goodwill | 4,503 |  |  |
Crop Protection [Member] |  |  |  |
Goodwill [Line Items] |  |  |  |
Goodwill Beginning Balance | 4,745 |  | 4,743 |
Currency Translation Adjustment | (73) |  | 31 |
Other goodwill adjustments and acquisitions | 0 |  | (29) | [2]
Goodwill Ending Balance | 4,672 |  | 4,745 |
Seed [Member] |  |  |  |
Goodwill [Line Items] |  |  |  |
Goodwill Beginning Balance | 5,524 |  | 5,486 |
Currency Translation Adjustment | (87) |  | 38 |
Other goodwill adjustments and acquisitions | (2) | [1] | 0 |
Goodwill Ending Balance | $ 5,435 |  | $ 5,524 |
[1] | Consists of the goodwill included in the sale of a business in the seed segment.
[2] | Primarily consists of the goodwill included in the sale of businesses in the crop protection segment.

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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