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Divestitures and Other Transactions Divestitures and Other Transactions - Divested Ag Business Results of Operations (Details) - USD ($) $ in Millions | 1 Months Ended | 2 Months Ended | 3 Months Ended | 8 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | ---
Sep. 30, 2017 | Aug. 31, 2017 | Sep. 30, 2018 | Aug. 31, 2017 | Sep. 30, 2018
Predecessor [Member] |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
(Loss) income from discontinued operations after income taxes |  | $ 29 |  | $ 119 |
Predecessor [Member] | Divested Ag Business [Member] |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Net Sales, Discontinued Operations |  | 191 |  | 1,068 |
Cost of Goods Sold, Discontinued Operations |  | 79 |  | 412 |
Other Operating Charges, Discontinued Operations |  | 5 |  | 17 |
Research and Development Expense, Discontinued Operations |  | 24 |  | 95 |
Selling, General and Administrative, Discontinued Operations |  | 46 |  | 146 |
Sundry income - net, Discontinued Operations |  | 0 |  | 7 |
Income from Discontinued Operation, before Income Taxes |  | 37 |  | 405 |
Provision for Income Taxes, Discontinued Operation |  | 8 |  | 79 |
(Loss) income from discontinued operations after income taxes |  | $ 29 |  | $ 326 |
Successor [Member] |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
(Loss) income from discontinued operations after income taxes | $ (20) |  | $ 0 |  | $ (5)
Successor [Member] | Divested Ag Business [Member] |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Net Sales, Discontinued Operations | 116 |  |  |  |
Cost of Goods Sold, Discontinued Operations | 110 |  |  |  |
Research and Development Expense, Discontinued Operations | 9 |  |  |  |
Selling, General and Administrative, Discontinued Operations | 29 |  |  |  |
Sundry income - net, Discontinued Operations | 0 |  |  |  |
Income from Discontinued Operation, before Income Taxes | (32) |  |  |  | (10)
Provision for Income Taxes, Discontinued Operation | (12) |  |  |  |
(Loss) income from discontinued operations after income taxes | $ (20) |  |  |  | $ (5)

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