Loans (Accruing And Non-Accruing Loans By Class) (Details) (USD $)	Jun. 30, 2011		Dec. 31, 2010	Jun. 30, 2010
Total Loans	$ 16,061,646,000	[1],[2]	$ 16,782,572,000	$ 17,154,050,000	[1],[2]
Accruing [Member]
Current	15,273,253,000			16,097,752,000
30-89 Days Past Due	148,030,000			225,926,000
90+ Days Past Due	58,969,000			90,864,000
Total Accruing	15,480,252,000			16,414,542,000
Accruing [Member] | Credit Card [Member]
Current	189,180,000			185,222,000
30-89 Days Past Due	1,480,000			2,091,000
90+ Days Past Due	1,141,000			1,840,000
Total Accruing	191,801,000			189,153,000
Accruing [Member] | Other [Member]
Current	93,173,000	[3]		111,867,000	[4]
30-89 Days Past Due	908,000	[3]		651,000	[4]
90+ Days Past Due	10,000	[3]		98,000	[4]
Total Accruing	94,091,000	[3]		112,616,000	[4]
Accruing [Member] | TRUPs [Member] | Commercial, Financial, and Industrial [Member]
Current	349,519,000	[5]		365,700,000	[5]
Total Accruing	349,519,000	[5]		365,700,000	[5]
Accruing [Member] | Commercial, Financial, and Industrial [Member]
Current	6,930,806,000			6,727,164,000
30-89 Days Past Due	36,859,000			69,396,000
90+ Days Past Due	398,000			2,125,000
Total Accruing	6,968,063,000			6,798,685,000
Accruing [Member] | Consumer Real Estate [Member]
Current	5,894,557,000			6,524,628,000
30-89 Days Past Due	64,204,000			105,421,000
90+ Days Past Due	36,565,000			52,953,000
Total Accruing	5,995,326,000			6,683,002,000
Accruing [Member] | Consumer Real Estate [Member] | HELOC [Member]
Current	3,794,849,000	[6]		4,188,397,000	[6]
30-89 Days Past Due	41,577,000	[6]		65,836,000	[6]
90+ Days Past Due	25,909,000	[6]		33,548,000	[6]
Total Accruing	3,862,335,000	[6]		4,287,781,000	[6]
Accruing [Member] | Consumer Real Estate [Member] | R/E Installment Loans [Member]
Current	2,099,708,000			2,336,231,000
30-89 Days Past Due	22,627,000			39,585,000
90+ Days Past Due	10,656,000			19,405,000
Total Accruing	2,132,991,000			2,395,221,000
Accruing [Member] | Commercial Real Estate [Member]
Current	1,287,615,000			1,641,768,000
30-89 Days Past Due	23,714,000			24,633,000
90+ Days Past Due	181,000			6,266,000
Total Accruing	1,311,510,000			1,672,667,000
Accruing [Member] | Permanent Mortgage [Member]
Current	877,922,000	[6]		907,103,000	[6]
30-89 Days Past Due	20,865,000	[6]		23,734,000	[6]
90+ Days Past Due	20,674,000	[6]		27,582,000	[6]
Total Accruing	919,461,000	[6]		958,419,000	[6]
Accruing [Member] | Credit Card and Other [Member]
Current	282,353,000			297,089,000
30-89 Days Past Due	2,388,000			2,742,000
90+ Days Past Due	1,151,000			1,938,000
Total Accruing	285,892,000			301,769,000
General C&I [Member] | Accruing [Member] | Commercial, Financial, and Industrial [Member]
Current	5,999,416,000			5,548,007,000
30-89 Days Past Due	36,859,000			69,396,000
90+ Days Past Due	398,000			2,125,000
Total Accruing	6,036,673,000			5,619,528,000
Income CRE [Member] | Accruing [Member] | Commercial Real Estate [Member]
Current	1,184,361,000			1,431,439,000
30-89 Days Past Due	14,322,000			20,394,000
90+ Days Past Due	181,000			633,000
Total Accruing	1,198,864,000			1,452,466,000
Loans to Mortgage Companies [Member] | Accruing [Member] | Commercial, Financial, and Industrial [Member]
Current	581,871,000			813,457,000
Total Accruing	581,871,000			813,457,000
Residential CRE [Member] | Accruing [Member] | Commercial Real Estate [Member]
Current	103,254,000			210,329,000
30-89 Days Past Due	9,392,000			4,239,000
90+ Days Past Due				5,633,000
Total Accruing	112,646,000			220,201,000
Non-Accruing [Member]
Current	187,763,000			149,248,000
30-89 Days Past Due	21,141,000			28,217,000
90+ Days Past Due	372,490,000			562,043,000
Total Non-Accruing	581,394,000			739,508,000
Non-Accruing [Member] | Other [Member]
Current	6,000	[3]
90+ Days Past Due	9,475,000	[3]		53,461,000	[4]
Total Non-Accruing	9,481,000	[3]		53,461,000	[4]
Non-Accruing [Member] | TRUPs [Member] | Commercial, Financial, and Industrial [Member]
90+ Days Past Due	80,008,000	[5]		63,831,000	[5]
Total Non-Accruing	80,008,000	[5]		63,831,000	[5]
Non-Accruing [Member] | Commercial, Financial, and Industrial [Member]
Current	70,532,000			67,980,000
30-89 Days Past Due	8,229,000			19,035,000
90+ Days Past Due	133,437,000			118,098,000
Total Non-Accruing	212,198,000			205,113,000
Non-Accruing [Member] | Consumer Real Estate [Member]
Current	23,761,000			11,065,000
30-89 Days Past Due	2,718,000			2,237,000
90+ Days Past Due	10,596,000			9,546,000
Total Non-Accruing	37,075,000			22,848,000
Non-Accruing [Member] | Consumer Real Estate [Member] | HELOC [Member]
Current	13,332,000	[6]		5,509,000	[6]
30-89 Days Past Due	1,550,000	[6]		1,279,000	[6]
90+ Days Past Due	7,542,000	[6]		5,360,000	[6]
Total Non-Accruing	22,424,000	[6]		12,148,000	[6]
Non-Accruing [Member] | Consumer Real Estate [Member] | R/E Installment Loans [Member]
Current	10,429,000			5,556,000
30-89 Days Past Due	1,168,000			958,000
90+ Days Past Due	3,054,000			4,186,000
Total Non-Accruing	14,651,000			10,700,000
Non-Accruing [Member] | Commercial Real Estate [Member]
Current	65,651,000			57,471,000
30-89 Days Past Due	7,657,000			5,436,000
90+ Days Past Due	108,818,000			271,195,000
Total Non-Accruing	182,126,000			334,102,000
Non-Accruing [Member] | Permanent Mortgage [Member]
Current	27,813,000	[6]		12,732,000	[6]
30-89 Days Past Due	2,537,000	[6]		1,509,000	[6]
90+ Days Past Due	110,164,000	[6]		109,743,000	[6]
Total Non-Accruing	140,514,000	[6]		123,984,000	[6]
Non-Accruing [Member] | Credit Card and Other [Member]
Current	6,000
90+ Days Past Due	9,475,000			53,461,000
Total Non-Accruing	9,481,000			53,461,000
General C&I [Member] | Non-Accruing [Member] | Commercial, Financial, and Industrial [Member]
Current	70,532,000			67,980,000
30-89 Days Past Due	8,229,000			19,035,000
90+ Days Past Due	52,773,000			52,184,000
Total Non-Accruing	131,534,000			139,199,000
Income CRE [Member] | Non-Accruing [Member] | Commercial Real Estate [Member]
Current	35,221,000			25,131,000
30-89 Days Past Due	6,552,000			4,777,000
90+ Days Past Due	70,142,000			127,461,000
Total Non-Accruing	111,915,000			157,369,000
Loans to Mortgage Companies [Member] | Non-Accruing [Member] | Commercial, Financial, and Industrial [Member]
90+ Days Past Due	656,000			2,083,000
Total Non-Accruing	656,000			2,083,000
Residential CRE [Member] | Non-Accruing [Member] | Commercial Real Estate [Member]
Current	30,430,000			32,340,000
30-89 Days Past Due	1,105,000			659,000
90+ Days Past Due	38,676,000			143,734,000
Total Non-Accruing	70,211,000			176,733,000
TRUPs [Member] | Commercial, Financial, and Industrial [Member]
Total Loans	429,527,000	[5]		429,531,000	[5]
Commercial, Financial, and Industrial [Member]
Total Loans	7,180,261,000			7,003,798,000
General C&I [Member] | Commercial, Financial, and Industrial [Member]
Total Loans	6,168,207,000			5,758,727,000
Loans to Mortgage Companies [Member] | Commercial, Financial, and Industrial [Member]
Total Loans	582,527,000			815,540,000
Consumer Real Estate [Member]
Total Loans	6,032,401,000			6,705,850,000
Consumer Real Estate [Member] | HELOC [Member]
Total Loans	3,884,759,000	[6]		4,299,929,000	[6]
Consumer Real Estate [Member] | R/E Installment Loans [Member]
Total Loans	2,147,642,000			2,405,921,000
Commercial Real Estate [Member]
Total Loans	1,493,636,000			2,006,769,000
Income CRE [Member] | Commercial Real Estate [Member]
Total Loans	1,310,779,000			1,609,835,000
Residential CRE [Member] | Commercial Real Estate [Member]
Total Loans	182,857,000			396,934,000
Permanent Mortgage [Member]
Total Loans	1,059,975,000	[6]		1,082,403,000	[6]
Credit Card and Other [Member]
Total Loans	295,373,000			355,230,000
TRUPs [Member]
LOCOM valuation allowance	35,600,000			35,600,000
Credit Card [Member]
30-89 Days Past Due	1,400,000
Total Loans	191,801,000			189,153,000
Other [Member]
30-89 Days Past Due	900,000
90+ Days Past Due	1,100,000
Total Loans	$ 103,572,000	[3]		$ 166,077,000	[4]

[1] Q2 2011 and Q2 2010 include $29.9 million and $43.0 million of reserves, respectively, and $649.2 million and $770.3 million of balances in restricted consumer real estate loans, respectively.

[2] Q2 2011 and Q2 2010 include $3.1 million and $7.1 million of reserves, respectively, and $44.9 million and $63.5 million of balances in restricted permanent mortgage loans, respectively.

[3] Includes OTC and non real estate installment loans.

[4] Includes OTC. All nonaccruing balances reflect OTC.

[5] Includes LOCOM valuation allowance $35.6 million.

[6] Includes restricted loans.