Segments (Schedule Of Financial Information By Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022		Sep. 30, 2021
Segment Reporting Information [Line Items]
Net interest income	$ 246,373	$ 214,037	$ 687,544		$ 627,767
Provision for credit losses	(15,290)	7,385	(12,594)		59,272
Non-interest income	138,514	137,506	409,710		412,694
INVESTMENT SECURITIES GAINS, NET	3,410	13,108	11,602	[1]	39,765	[1]
Non-interest expense	(212,884)	(211,620)	(632,037)		(602,319)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	160,123	160,416	464,225		537,179
Consumer segment
Segment Reporting Information [Line Items]
Net interest income	86,232	80,411	249,761		239,157
Provision for credit losses	(4,305)	(3,557)	(12,727)		(19,122)
Non-interest income	30,264	35,758	89,542		110,911
INVESTMENT SECURITIES GAINS, NET	0	0	0		0
Non-interest expense	(76,832)	(75,996)	(225,232)		(220,280)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	35,359	36,616	101,344		110,666
Commercial segment
Segment Reporting Information [Line Items]
Net interest income	114,087	115,529	333,263		340,279
Provision for credit losses	(506)	(69)	(651)		4,856
Non-interest income	57,115	52,092	167,581		155,079
INVESTMENT SECURITIES GAINS, NET	0	0	0		0
Non-interest expense	(91,372)	(84,601)	(272,224)		(246,501)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	79,324	82,951	227,969		253,713
Wealth segment
Segment Reporting Information [Line Items]
Net interest income	18,637	18,075	56,731		53,186
Provision for credit losses	5	9	2		10
Non-interest income	53,862	55,241	161,051		158,731
INVESTMENT SECURITIES GAINS, NET	0	0	0		0
Non-interest expense	(36,194)	(34,285)	(108,967)		(101,377)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	36,310	39,040	108,817		110,550
Segment Totals
Segment Reporting Information [Line Items]
Net interest income	218,956	214,015	639,755		632,622
Provision for credit losses	(4,806)	(3,617)	(13,376)		(14,256)
Non-interest income	141,241	143,091	418,174		424,721
INVESTMENT SECURITIES GAINS, NET	0	0	0		0
Non-interest expense	(204,398)	(194,882)	(606,423)		(568,158)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	150,993	158,607	438,130		474,929
Other/Elimination
Segment Reporting Information [Line Items]
Net interest income	27,417	22	47,789		(4,855)
Provision for credit losses	(10,484)	11,002	782		73,528
Non-interest income	(2,727)	(5,585)	(8,464)		(12,027)
INVESTMENT SECURITIES GAINS, NET	3,410	13,108	11,602		39,765
Non-interest expense	(8,486)	(16,738)	(25,614)		(34,161)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 9,130	$ 1,809	$ 26,095		$ 62,250

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