Loans (Period-End Balances And Various Asset Quality Attributes By Origination Vintage For The HELOC) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011	Jun. 30, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 16,185,763	[1],[2]	$ 16,397,127	$ 16,061,646	[1],[2]
HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Avg orig FICO	740			740
Avg Refreshed FICO	730			730
Loans, net of unearned income	3,488,330	[3]		3,884,759	[3]
HELOC [Member] | Pre-2003 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
HELOC - Period End Balance	153,428			205,846
Avg orig FICO	721			723
Avg Refreshed FICO	715			720
HELOC [Member] | 2003 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
HELOC - Period End Balance	249,536			297,529
Avg orig FICO	733			733
Avg Refreshed FICO	724			726
HELOC [Member] | 2004 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
HELOC - Period End Balance	546,681			636,798
Avg orig FICO	728			728
Avg Refreshed FICO	719			720
HELOC [Member] | 2005 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
HELOC - Period End Balance	679,687			789,493
Avg orig FICO	734			734
Avg Refreshed FICO	720			721
HELOC [Member] | 2006 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
HELOC - Period End Balance	500,840			592,715
Avg orig FICO	741			742
Avg Refreshed FICO	726			726
HELOC [Member] | 2007 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
HELOC - Period End Balance	521,706			599,372
Avg orig FICO	746			746
Avg Refreshed FICO	731			732
HELOC [Member] | 2008 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
HELOC - Period End Balance	279,200			306,902
Avg orig FICO	755			755
Avg Refreshed FICO	749			749
HELOC [Member] | 2009 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
HELOC - Period End Balance	163,683			191,666
Avg orig FICO	753			755
Avg Refreshed FICO	750			755
HELOC [Member] | 2010 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
HELOC - Period End Balance	159,522			192,126
Avg orig FICO	754			756
Avg Refreshed FICO	753			758
HELOC [Member] | 2011 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
HELOC - Period End Balance	155,018			72,312
Avg orig FICO	759			756
Avg Refreshed FICO	757			758
HELOC [Member] | 2012 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
HELOC - Period End Balance	$ 79,029
Avg orig FICO	761
Avg Refreshed FICO	760

[1] Balances as of June 30, 2012 and 2011 include $19.0 million and $29.9 million of reserves, respectively, and $447.5 million and $649.2 million of balances in restricted consumer real estate loans and secured borrowings, respectively.

[2] Balances as of June 30, 2012 and 2011 include $1.3 million and $3.1 million of reserves, respectively, and $16.9 million and $44.9 million of balances in restricted permanent mortgage loans and secured borrowings, respectively.

[3] (a) Balances as of June 30, 2012 and 2011 include $447.5 million and $649.2 million of restricted loan and secured borrowing balances.