Consolidated Statement of Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Common stock dividends (in dollars per share)	$ 0.50	$ 0.48	$ 1.48	$ 1.44
Series A
Preferred stock dividends declared (in dollars per share)	1,682.317	1,684	5,020.442	4,733.948
Series B
Preferred stock dividends declared (in dollars per share)	393.746	394.167	1,175.194	1,103.862
Series J
Preferred stock dividends declared (in dollars per share)	662.50	662.50	1,325	1,325
Series K
Preferred stock dividends declared (in dollars per share)	343.75	343.75	1,031.25	1,031.25
Series L
Preferred stock dividends declared (in dollars per share)	234.375	234.375	703.125	703.125
Series M
Preferred stock dividends declared (in dollars per share)	250.00	250.00	750.00	750.00
Series N
Preferred stock dividends declared (in dollars per share)	231.25	231.25	693.75	693.75
Series O
Preferred stock dividends declared (in dollars per share)	$ 281.25	$ 281.25	$ 843.75	$ 843.75