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Stockholders' Equity Preferred Stock (Details) - EID [Member] - USD ($) | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2023 | Dec. 31, 2022 | Jun. 30, 2022
$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
$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
Corteva [Member] |  |  |
Class of Stock [Line Items] |  |  |
Ownership interest in an entity | 100.00% |  |

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