Geographic and Product Line Information Sales by Principal Product Group (Details) - USD ($) $ in Millions	1 Months Ended	2 Months Ended	3 Months Ended							4 Months Ended	8 Months Ended	12 Months Ended
	Sep. 30, 2017	Aug. 31, 2017	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Aug. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Successor [Member]
Revenue from External Customer [Line Items]
Net Sales	$ 1,735		$ 5,318							$ 7,053
Successor [Member] | Agriculture [Member]
Revenue from External Customer [Line Items]
Net Sales										1,596
Successor [Member] | Packaging & Specialty Plastics [Member]
Revenue from External Customer [Line Items]
Net Sales										544
Successor [Member] | Electronics & Imaging [Member]
Revenue from External Customer [Line Items]
Net Sales										743
Successor [Member] | Nutrition & Health [Member]
Revenue from External Customer [Line Items]
Net Sales										1,165
Successor [Member] | Industrial Biosciences [Member]
Revenue from External Customer [Line Items]
Net Sales										573
Successor [Member] | Transportation & Advanced Polymers [Member]
Revenue from External Customer [Line Items]
Net Sales										1,355
Successor [Member] | Safety & Construction [Member]
Revenue from External Customer [Line Items]
Net Sales										1,074
Successor [Member] | Other
Revenue from External Customer [Line Items]
Net Sales										$ 3
Predecessor [Member]
Revenue from External Customer [Line Items]
Net Sales		$ 2,991		$ 6,971	$ 7,319	$ 4,903	$ 4,646	$ 6,646	$ 7,014		$ 17,281	$ 23,209	$ 23,657
Predecessor [Member] | Agriculture [Member]
Revenue from External Customer [Line Items]
Net Sales											6,894	8,131	8,327
Predecessor [Member] | Packaging & Specialty Plastics [Member]
Revenue from External Customer [Line Items]
Net Sales											1,072	1,651	1,715
Predecessor [Member] | Electronics & Imaging [Member]
Revenue from External Customer [Line Items]
Net Sales											1,422	1,960	2,070
Predecessor [Member] | Nutrition & Health [Member]
Revenue from External Customer [Line Items]
Net Sales											2,129	3,268	3,256
Predecessor [Member] | Industrial Biosciences [Member]
Revenue from External Customer [Line Items]
Net Sales											1,022	1,500	1,478
Predecessor [Member] | Transportation & Advanced Polymers [Member]
Revenue from External Customer [Line Items]
Net Sales											2,608	3,599	3,591
Predecessor [Member] | Safety & Construction [Member]
Revenue from External Customer [Line Items]
Net Sales											2,134	3,099	3,220
Predecessor [Member] | Other
Revenue from External Customer [Line Items]
Net Sales											$ 0	$ 1	$ 0