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Equity Schedule of Stock by Class - Preferred (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Class of Stock [Line Items] |  |  |  |  |
Preferred Stock, Shares Outstanding | 1,302,500 |  | 1,302,500 |  | 440,000
Shares outstanding | $ 6,494.9 |  | $ 6,494.9 |  | $ 5,752.2
Series A Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Preferred Stock, Liquidation Preference Per Share | $ 1,000 |  | $ 1,000 |  |
Preferred Stock, Shares Outstanding | 400,000 |  | 400,000 |  |
Dividends Declared Per Share | $ 28.25 | $ 28.25 | $ 56.50 | $ 56.50 |
Series B Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Preferred Stock, Liquidation Preference Per Share | $ 25,000 |  | $ 25,000 |  |
Preferred Stock, Shares Outstanding | 20,000 |  | 20,000 |  |
Dividends Declared Per Share | $ 406.25 | 406.25 | $ 1,625 | 1,625 |
Series B-1 Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Preferred Stock, Shares Outstanding | 20,000 |  | 20,000 |  |
Series C Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Preferred Stock, Liquidation Preference Per Share | $ 1,000 |  | $ 1,000 |  |
Preferred Stock, Shares Outstanding | 862,500 |  | 862,500 |  |
Dividends Declared Per Share | $ 0 | $ 0 | $ 0 | $ 0 |
Preferred Stock | Series A Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Shares outstanding | $ 393.9 |  | $ 393.9 |  | 393.9
Preferred Stock | Series B Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Shares outstanding | 486.1 |  | 486.1 |  | 486.1
Preferred Stock | Series C Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Shares outstanding | $ 839.8 |  | $ 839.8 |  | $ 0.0

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