Consolidated Statement of Changes in Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Percentage of income taxes receivable or payable	1.00%		1.00%
Preferred Series E [Member]
Preferred stock per share dividend amount	$ 16.125	$ 16.125	$ 32.25	$ 32.25
Preferred Series F [Member]
Preferred stock per share dividend amount	128.125	128.125	256.25	256.25
Preferred Series G [Member]
Preferred stock per share dividend amount	125	125	250	250
Preferred Series I [Member]
Preferred stock per share dividend amount	87.5	87.5	175	181.81
Preferred Series H [Member]
Preferred stock per share dividend amount	0.3516		0.7031
Retained Earnings [Member]
Common stock per share dividend amount	$ 1.3	$ 1.2	$ 2.6	$ 2.4