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CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Dividends declared per common share (in dollars per share) |  | $ 0.64 | $ 0.64
Series D Preferred Stock |  |  |
Dividends declared per preferred share (in dollars per share) | $ 2.0625 | $ 2.0625 | 0.2349
Preferred stock dividend rate | 8.25% | 8.25% |
Series B Preferred Stock |  |  |
Dividends declared per preferred share (in dollars per share) | $ 1.3750 | $ 1.3750 | $ 1.3750
Preferred stock dividend rate | 5.50% | 5.50% |

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