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Stockholders' Equity Common Stock (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Sep. 13, 2022	Aug. 05, 2021	Jun. 26, 2019
Class of Stock [Line Items]
Common Stock, Par Value	$ 0.01	$ 0.01	$ 0.01	$ 0.01	$ 0.01
Repurchase of Common Stock			$ 757	$ 585
2021 Stock Repurchase Program
Class of Stock [Line Items]
Stock Repurchased and Retired During Period, Shares					4,098,000	17,425,000	5,572,000
Stock Repurchase Program, Authorized Amount									$ 1,500
Repurchase of Common Stock					$ 250	$ 1,000	$ 250
2022 Stock Repurchase Program
Class of Stock [Line Items]
Stock Repurchased and Retired During Period, Shares	4,722,000	4,913,000	13,838,000	6,330,000
Stock Repurchase Program, Authorized Amount								$ 2,000
Repurchase of Common Stock	$ 250	$ 250	$ 750	$ 330
Corteva [Member]
Class of Stock [Line Items]
Common Stock, Par Value	$ 0.01		$ 0.01							$ 0.01

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