Revenue Disaggregation of Revenue - Principal Product Groups (Details) - Successor [Member] - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Net Sales	$ 8,545	$ 15,244
Agriculture [Member]
Disaggregation of Revenue [Line Items]
Net Sales	4,058	6,401
Packaging & Specialty Plastics [Member]
Disaggregation of Revenue [Line Items]
Net Sales	416	835
Electronics & Imaging [Member]
Disaggregation of Revenue [Line Items]
Net Sales	553	1,080
Nutrition & Health [Member]
Disaggregation of Revenue [Line Items]
Net Sales	1,057	2,081
Industrial Biosciences [Member]
Disaggregation of Revenue [Line Items]
Net Sales	429	835
Transportation & Advanced Polymers [Member]
Disaggregation of Revenue [Line Items]
Net Sales	1,142	2,263
Safety & Construction [Member]
Disaggregation of Revenue [Line Items]
Net Sales	889	1,744
Other [Member]
Disaggregation of Revenue [Line Items]
Net Sales	$ 1	$ 5