DEI Document - $ / shares	9 Months Ended
	Sep. 30, 2020	Oct. 29, 2020	Dec. 31, 2019	Sep. 30, 2019
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Amendment Flag	false
Document Transition Report	false
Entity File Number	001-38710
Entity Registrant Name	Corteva, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	82-4979096
Entity Address, Address Line One	974 Centre Road,
Entity Address, City or Town	Wilmington,
Entity Address, State or Province	DE
Entity Address, Postal Zip Code	19805
City Area Code	(302)
Local Phone Number	485-3000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		745,016,000
Common Stock, Par Value	$ 0.01	$ 0.01	$ 0.01	$ 0.01
Entity Central Index Key	0001755672
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Entity Small Business	false
Common Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	CTVA
Security Exchange Name	NYSE
EID [Member]
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Amendment Flag	false
Document Transition Report	false
Entity File Number	1-815
Entity Registrant Name	E. I. du Pont de Nemours and Company
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	51-0014090
Entity Address, Address Line One	974 Centre Road,
Entity Address, City or Town	Wilmington,
Entity Address, State or Province	DE
Entity Address, Postal Zip Code	19805
City Area Code	(302)
Local Phone Number	485-3000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		200
Common Stock, Par Value	$ 0.30	$ 0.30	$ 0.30	$ 0.30
Entity Central Index Key	0000030554
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Entity Small Business	false
EID [Member] | $3.50 Series Preferred Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	$3.50 Series Preferred Stock
Trading Symbol	CTAPrA
Security Exchange Name	NYSE
EID [Member] | $4.50 Series Preferred Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	$4.50 Series Preferred Stock
Trading Symbol	CTAPrB
Security Exchange Name	NYSE