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Total Equity and Other Comprehensive Income (Dividends Per Share) (Details) - $ / shares | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
Common Stock |  |
Class of Stock [Line Items] |  |
Cash dividends declared, common, per share (in dollars per share) | $ 1.25 | $ 1.15
Series B |  |
Class of Stock [Line Items] |  |
Cash dividends declared, Preferred, per share (in dollars per share) | 0.45 | 0.45
Series O |  |
Class of Stock [Line Items] |  |
Cash dividends declared, Preferred, per share (in dollars per share) | 974 | 3,375
Series P |  |
Class of Stock [Line Items] |  |
Cash dividends declared, Preferred, per share (in dollars per share) | 1,531 | 1,531
Series T |  |
Class of Stock [Line Items] |  |
Cash dividends declared, Preferred, per share (in dollars per share) | $ 850 |

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
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