Noncash activity affecting the restructuring reserve related to asset write-offs and adjustments.

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- Definition

Separation related transaction costs primarily related to professional fees associated with preparation of regulatory filings and separation activities within finance, legal and information system functions, as well as the premium on early retirement of debt.

+ References

No definition available.

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- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 17
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3367-108585

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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- Definition

Amount of restructuring charges, remediation cost, and asset impairment loss.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

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Restructuring and Asset Related Charges DowDuPont Agriculture Division Restructuring Program (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		7 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset Related Charges - Net	$ 60	$ 101	$ 121	$ 231
DowDuPont Agriculture Division Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset Related Charges - Net			(1)		$ 83
Restructuring Reserve	43		43		43	$ 77
Payments for Restructuring			(24)
Asset write-offs and adjustments			(3)
Separation Related Transaction Costs			(6)
Employee Severance [Member] \| DowDuPont Agriculture Division Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset Related Charges - Net			(4)		74
Restructuring Reserve	43		43		43	77
Payments for Restructuring			(24)
Asset write-offs and adjustments			0
Separation Related Transaction Costs			(6)
Asset Related Charges [Member] \| DowDuPont Agriculture Division Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset Related Charges - Net			3		9
Restructuring Reserve	0		0		$ 0	$ 0
Payments for Restructuring			0
Asset write-offs and adjustments			(3)
Separation Related Transaction Costs			0
Seed [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset Related Charges - Net	(49)	(37)	(76)	(83)
Seed [Member] \| DowDuPont Agriculture Division Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset Related Charges - Net			3
Crop Protection [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset Related Charges - Net	(2)		(25)	(12)
Crop Protection [Member] \| DowDuPont Agriculture Division Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset Related Charges - Net			(4)
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset Related Charges - Net	$ (9)	$ (64)	(20)	$ (136)
Corporate \| DowDuPont Agriculture Division Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset Related Charges - Net			$ 0