Consolidated Statement of Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Common stock dividends (in dollars per share)	$ 0.49	$ 0.48	$ 0.98	$ 0.96
Series A
Preferred stock dividends declared (in dollars per share)	1,670.904	1,587.52	3,338.125	3,049.948
Series B
Preferred stock dividends declared (in dollars per share)	391.184	370.338	781.448	709.695
Series J
Preferred stock dividends declared (in dollars per share)			662.50	662.50
Series K
Preferred stock dividends declared (in dollars per share)	343.75	343.75	687.50	687.50
Series L
Preferred stock dividends declared (in dollars per share)	234.375	234.375	468.750	468.75
Series M
Preferred stock dividends declared (in dollars per share)	250.00	250.00	500.00	500.00
Series N
Preferred stock dividends declared (in dollars per share)	231.25	231.25	462.50	462.50
Series O
Preferred stock dividends declared (in dollars per share)	$ 281.25	$ 281.25	$ 562.50	$ 562.50