Stockholders' Equity Common Stock (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended			6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Sep. 13, 2022	Aug. 05, 2021	Jun. 26, 2019
Class of Stock [Line Items]
Common Stock, Par Value				$ 0.01	$ 0.01	$ 0.01
Repurchase of Common Stock				$ 504	$ 332
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 Repurchase Program, Authorized Amount							$ 2,000
Corteva [Member]
Class of Stock [Line Items]
Common Stock, Par Value				$ 0.01					$ 0.01