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Stockholders' Equity Preferred Stock (Details) - EIDP - USD ($)
 9 Months Ended
Sep. 30, 2024
Dec. 31, 2023
Sep. 30, 2023
$4.50 Series Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred Stock, Shares Authorized 23,000,000 23,000,000 23,000,000
Preferred Stock, Shares Issued 1,673,000 1,673,000 1,673,000
Preferred Stock, Redemption Amount $ 120 $ 120 $ 120
Preferred Stock, Dividend Rate, Per-Dollar-Amount $ 4.50    
$3.50 Series Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred Stock, Shares Authorized 23,000,000 23,000,000 23,000,000
Preferred Stock, Shares Issued 700,000 700,000 700,000
Preferred Stock, Redemption Amount $ 102 $ 102 $ 102
Preferred Stock, Dividend Rate, Per-Dollar-Amount $ 3.50    
Corteva [Member]      
Class of Stock [Line Items]      
Ownership interest in an entity 100.00%