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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, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	Nov. 19, 2024	Sep. 13, 2022	Jun. 01, 2019
Equity, Class of Treasury Stock [Line Items]
Common Stock, Par Value	$ 0.01	$ 0.01	$ 0.01	$ 0.01	$ 0.01
Repurchase of Common Stock			$ 770	$ 757
2024 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Share Repurchase Program, Authorized, Amount						$ 3,000
Stock Repurchased and Retired During Period, Shares	3,401,000		3,681,000
Repurchase of Common Stock	$ 250		$ 270
2022 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Share Repurchase Program, Authorized, Amount							$ 2,000
Stock Repurchased and Retired During Period, Shares		4,722,000	7,815,000	13,838,000
Repurchase of Common Stock		$ 250	$ 500	$ 750
2022 Stock Repurchase Program | Share Repurchase from Pension Plan [Member] | Pension Plan
Equity, Class of Treasury Stock [Line Items]
Repurchase of Common Stock			$ 145		$ 125
Corteva [Member]
Equity, Class of Treasury Stock [Line Items]
Common Stock, Par Value	$ 0.01		$ 0.01					$ 0.01

X

- Definition

Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

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