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Divestitures and Other Transactions Divestitures and Other Transactions - Divested Ag Business Results of Operations (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Nov. 01, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Finite-Lived Intangible Assets, Gross | $ 12,595 | $ 12,599 |  |
Income (loss) from discontinued operations after income taxes | (53) | (55) | $ (671) |
Divested Ag Business [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Income (loss) from discontinued operations after income taxes |  | 80 |  |
Favorable Supply Contract [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Finite-Lived Intangible Assets, Gross | $ 475 | $ 475 |  |
Favorable Supply Contract [Member] | Divested Ag Business [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Finite-Lived Intangible Assets, Gross |  |  |  | $ 495

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