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Divestitures and Other Transactions Divestitures and Other Transactions - Narrative (Details) - Successor [Member]
$ in Millions
3 Months Ended
Mar. 31, 2018
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]  
Loss from discontinued operations after income taxes $ (5)
Divested Ag Business [Member]  
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]  
Discontinued Operation, Loss from Discontinued Operation, before Income Tax (10)
Loss from discontinued operations after income taxes $ (5)