Consolidated Statement of Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Common stock dividends, share	$ 0.48	$ 0.46	$ 1.4	$ 1.3
Series A [Member]
Preferred stock dividends declared per share	902.622	894.444	2,662.344	2,654.166
Series B [Member]
Preferred stock dividends declared per share	223.611	223.611	663.542	663.542
Series F [Member]
Preferred stock dividends declared per share		406.25		1,218.75
Series I [Member]
Preferred stock dividends declared per share				232.953
Series J [Member]
Preferred stock dividends declared per share	662.5	662.5	1,325	1,325
Series K [Member]
Preferred stock dividends declared per share	343.75	343.75	1,031.25	1,031.25
Series L [Member]
Preferred stock dividends declared per share	234.375	234.375	703.125	703.125
Series M [Member]
Preferred stock dividends declared per share	250	$ 250	750	$ 702.778
Series N [Member]
Preferred stock dividends declared per share	231.25		693.75
Series O [Member]
Preferred stock dividends declared per share	$ 281.25		$ 768.75