EID - Basis of Presentation Narrative (Details) - $ / shares	3 Months Ended
	Mar. 31, 2021	Apr. 30, 2021	Dec. 31, 2020	Mar. 31, 2020	Jun. 26, 2019
EID [Member]
Common Stock, Shares, Outstanding	200		200	200
Common Stock, Par Value	$ 0.30	$ 0.30	$ 0.30	$ 0.30
Common Stock, Shares, Outstanding	738,321,000		743,458,000	748,369,000
Common Stock, Par Value	$ 0.01	$ 0.01	$ 0.01	$ 0.01
Corteva [Member] | EID [Member]
Ownership interest in an entity	100.00%
Corteva [Member]
Common Stock, Par Value	$ 0.01				$ 0.01