Equity (Preferred Stock Authorized, Issued and Outstanding) (Details) - shares	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Class of Stock [Line Items]
Preferred stock, shares authorized	100,000,000	100,000,000
Preferred stock, shares issued	70,100	70,100
Preferred stock, shares outstanding	70,100	70,100
6.600% Non-Cumulative Preferred Stock, Series A
Class of Stock [Line Items]
Preferred stock, annual dividend rate	6.60%	6.60%
Preferred stock, shares authorized	17,000	17,000
Preferred stock, shares issued	17,000	17,000
Preferred stock, shares outstanding	17,000	17,000
6.750% Non-Cumulative Preferred Stock, Series B
Class of Stock [Line Items]
Preferred stock, annual dividend rate	6.75%	6.75%
Preferred stock, shares authorized	16,100	16,100
Preferred stock, shares issued	16,100	16,100
Preferred stock, shares outstanding	16,100	16,100
5.375% Non-Cumulative Preferred Stock, Series C
Class of Stock [Line Items]
Preferred stock, annual dividend rate	5.375%	5.375%
Preferred stock, shares authorized	23,000	23,000
Preferred stock, shares issued	23,000	23,000
Preferred stock, shares outstanding	23,000	23,000
4.625% Non-Cumulative Preferred Stock, Series D
Class of Stock [Line Items]
Preferred stock, annual dividend rate	4.625%	4.625%
Preferred stock, shares authorized	14,000	14,000
Preferred stock, shares issued	14,000	14,000
Preferred stock, shares outstanding	14,000	14,000
Not designated
Class of Stock [Line Items]
Preferred stock, shares authorized	99,929,900	99,929,900
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0