Annual report pursuant to Section 13 and 15(d)

Loans and Leases and Allowance For Credit Losses (Textuals) (Details)

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Loans and Leases and Allowance For Credit Losses (Textuals) (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
D
Dec. 31, 2011
Dec. 31, 2010
Mar. 30, 2012
Loans and Leases (Textuals)        
Amount of security for borrowing and advances $ 18,400,000,000      
All loans with an outstanding balance which evaluated on quarterly basis for impairment 1,000,000      
Amount guaranteed by U.S. Government 90,816,000 96,703,000    
Redefault status number of days 90      
Amount of NAL foregone interest 40,400,000 38,400,000 59,700,000  
Amount of TDR foregone interest 41,200,000 37,700,000 30,600,000  
Amount of interest recorded to interest income on NALs 4,800,000 5,100,000 5,500,000  
Amount of interest recorded to interest income on TDRs 32,200,000 28,200,000 23,900,000  
Aggregate amount of net unamortized deferred loan origination fees and net unearned income 174,500,000 122,500,000    
Fidelity Bank loans acquired at fair value as of acquisition date 523,900,000     523,900,000
Lease Financing Receivables Textuals [Abstract]        
Capital Leases, Future Minimum Payments Receivable 1,500,000,000      
Capital Leases, Future Minimum Payments Receivable, Current 500,000,000      
Capital Leases, Future Minimum Payments, Receivable in Two Years 300,000,000      
Capital Leases, Future Minimum Payments, Receivable in Three Years 200,000,000      
Capital Leases, Future Minimum Payments, Receivable in Four Years 200,000,000      
Capital Leases, Future Minimum Payments, Receivable in Five Years 100,000,000      
Capital Leases, Future Minimum Payments, Receivable Due Thereafter $ 200,000,000      
Automobile and other consumer loans [Member]
        
Loans and Leases (Textuals)        
Loans charged off or written down past due 120      
Commercial and Industrial and Commercial Real Estate [Member]
        
Loans and Leases (Textuals)        
Nonaccrual status number of days past due 90      
Loans charged off or written down past due 90      
Residential Mortgage [Member]
        
Loans and Leases (Textuals)        
Nonaccrual status number of days past due 150      
Loans charged off or written down past due 150      
Home equity secured by first-lien other [Member]
        
Loans and Leases (Textuals)        
Nonaccrual status number of days past due 150      
Loans charged off or written down past due 150      
Home equity secured by junior-lien [Member]
        
Loans and Leases (Textuals)        
Nonaccrual status number of days past due 120      
Loans charged off or written down past due 120