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Divestitures and Other Transactions Divestitures and Other Transactions - Narrative (Details) - Successor [Member] - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Loss from discontinued operations after income taxes | $ (20) | $ 0 | $ (5)
Divested Ag Business [Member] |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Loss from Discontinued Operation, before Income Tax | (32) |  | (10)
Loss from discontinued operations after income taxes | $ (20) |  | $ (5)

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