Investment Securities (Proceeds From Sales Of Securities And Components Of Investment Securities Gains And Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025		Sep. 30, 2024
Debt Securities, Available-for-sale [Line Items]
Proceeds from sales of debt securities, available for sale, including pending trades			$ 36,065		$ 1,057,589
Proceeds from Sale of Equity Securities, FV-NI			0		176,780
Proceeds from sales of other investments, including pending trades			10,563		38,558
Proceeds from sale of investments, total, including pending trades			46,628		1,272,927
INVESTMENT SECURITIES GAINS (LOSSES), NET	$ 7,885	$ 3,872	731	[1]	6,846	[1]
Available-for-sale Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Gains realized on sales			4		0
Available-for-sale Securities, Losses realized on sales			(4,218)		192,938
Equity Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Equity Securities, FV-NI, Gain (Loss)			1,666		178,098
Other Investments [Member]
Debt Securities, Available-for-sale [Line Items]
Other Securities, Gains realized on sales			1,172		3,082
Other Securities, Loss realized on sales			(1,735)		(1,601)
Fair value other securities adjustments, net			$ 3,842		$ 20,205

[1] Available for sale debt securities, equity securities, and other securities.