Divestitures and Other Transactions (Discontinued Operation Income Statement) (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, 2016	Aug. 31, 2017	Sep. 30, 2016
Successor
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) Income from Discontinued Operations, after income taxes	$ (20)
Predecessor
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) Income from Discontinued Operations, after income taxes		$ 29	$ 72	$ 119	$ 347
DuPont Remedy [Member] | Successor
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	116
Cost of goods sold	110
Research and Development Expense	9
Selling, General and Administrative Expense	29
Restructuring and Asset Related Charges - Net	0
Sundry Income (Expense) - Net	0
(Loss) Income from Discontinued Operations before Income Taxes	(32)
(Benefit) provision for income taxes	(12)
(Loss) Income from Discontinued Operations, after income taxes	$ (20)
DuPont Remedy [Member] | Predecessor
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales		191	271	1,068	1,077
Cost of goods sold		79	93	412	399
Other operating charges		5	4	17	14
Research and Development Expense		24	32	95	101
Selling, General and Administrative Expense		46	46	146	128
Restructuring and Asset Related Charges - Net		0	0	0	(3)
Sundry Income (Expense) - Net		0	(1)	7	0
(Loss) Income from Discontinued Operations before Income Taxes		37	95	405	438
(Benefit) provision for income taxes		8	16	79	84
(Loss) Income from Discontinued Operations, after income taxes		$ 29	$ 79	$ 326	$ 354