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Stockholders' Equity Common Stock (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Apr. 28, 2022
Dec. 31, 2021
Aug. 05, 2021
Jun. 26, 2019
Class of Stock [Line Items]            
Common Stock, Par Value $ 0.01 $ 0.01 $ 0.01 $ 0.01    
Repurchase of Common Stock $ 235 $ 350        
2019 Share Buyback Plan            
Class of Stock [Line Items]            
Stock Repurchased and Retired During Period, Shares   7,646        
Stock Repurchase Program, Authorized Amount           $ 1,000
Repurchase of Common Stock   $ 350        
2021 Stock Repurchase Program            
Class of Stock [Line Items]            
Stock Repurchased and Retired During Period, Shares 4,585          
Stock Repurchase Program, Authorized Amount         $ 1,500  
Repurchase of Common Stock $ 235          
Corteva [Member]            
Class of Stock [Line Items]            
Common Stock, Par Value $ 0.01       $ 0.01