Stockholders' Equity Common Stock (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) shares		Feb. 03, 2022 $ / shares	Jun. 26, 2019 USD ($) $ / shares	Jun. 03, 2019 $ / shares shares	Jun. 01, 2019 shares
Equity, Class of Treasury Stock [Line Items]
Common Stock, Shares Authorized	1,666,667,000	1,666,667,000
Common Stock, Par Value | $ / shares	$ 0.01	$ 0.01			$ 0.01
Common Stock, Shares, Outstanding	726,527,000	743,458,000	748,577,000					748,815,000
Stock Issued During Period, Shares, New Issues	4,019,000	3,384,000	586,000
Stock Repurchased and Retired During Period, Shares	(20,950,000)	(8,503,000)	(824,000)
Stock Repurchase Program, Authorized Amount | $						$ 1,000
Payments for Repurchase of Common Stock | $	$ 950	$ 275	$ 25	[1]
Payments for Repurchase of Common Stock | $	950	275	$ 25	[1]
2019 share repurchase plan
Equity, Class of Treasury Stock [Line Items]
Payments for Repurchase of Common Stock | $	700	275
Payments for Repurchase of Common Stock | $	$ 700	$ 275
Corteva [Member]
Equity, Class of Treasury Stock [Line Items]
Common Stock, Shares Authorized							748,815,000
Common Stock, Par Value | $ / shares						$ 0.01	$ 0.01
Common Stock, Shares, Issued								748,815,000
Corteva [Member] | Shares of Corteva Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Exchange Ratio								1
Corteva [Member] | Shares of DowDuPont Common Stock Held [Member]
Equity, Class of Treasury Stock [Line Items]
Exchange Ratio								3
Corteva [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased and Retired During Period, Shares	15,378,000	8,503,000
Common Stock, Shares, Issued								748,815,000

[1] The cash flows for the year ended December 31, 2019 includes cash flows of EID's ECP and Specialty Products Entities.