Divestitures and Other Transactions Divestitures and Other Transactions - Divested Ag Business Results of Operations (Details) - Predecessor [Member] - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations after income taxes	$ 147	$ 90
Divested Ag Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Sales, Discontinued Operations	453	877
Cost of Goods Sold, Discontinued Operations	171	333
Other Operating Charges, Discontinued Operations	8	12
Research and Development Expense, Discontinued Operations	39	71
Selling, General and Administrative, Discontinued Operations	61	100
Sundry income - net, Discontinued Operations	7	7
Income from Discontinued Operation, before Income Taxes	181	368
Provision for Income Taxes, Discontinued Operation	44	71
Income (loss) from discontinued operations after income taxes	$ 137	$ 297