EID - Related Party Transactions (Details) - EID [Member] - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Related Party Transaction [Line Items]
Long Term Debt - Related Party	$ 3,712	$ 4,037	$ 3,712	$ 4,037	$ 4,021
Corteva [Member]
Related Party Transaction [Line Items]
Debt, Weighted Average Interest Rate	1.80%	3.68%	1.80%	3.68%	3.27%
Interest Expense, Related Party	$ 19	$ 39	$ 82	$ 69
Corteva [Member] \| Accrued and Other Current Liabilities [Member]
Related Party Transaction [Line Items]
Indemnified Liabilities	110	102	110	102	$ 119
Corteva [Member] \| Other noncurrent obligations
Related Party Transaction [Line Items]
Indemnified Liabilities	$ 84	$ 180	$ 84	$ 180	$ 154

The amount for notes payable (written promise to pay), payable to related parties, which are due after one year (or one business cycle).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k)(1))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.23)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_NotesPayableRelatedPartiesNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant