Annual report pursuant to Section 13 and 15(d)

LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - Narrative (Details)

v3.3.1.900
LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - Narrative (Details)
 3 Months Ended 12 Months Ended
Mar. 31, 2015
USD ($)
securitization
Dec. 31, 2015
USD ($)
securitization
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Mar. 01, 2014
USD ($)
Dec. 31, 2012
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Loans net premium   $ 262,000,000 $ 230,000,000      
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]            
Future lease rental payments due   1,600,000,000        
Future lease rental payments due, in 2016   500,000,000        
Future lease rental payments due, in 2017   400,000,000        
Future lease rental payments due, in 2018   300,000,000        
Future lease rental payments due, in 2019   200,000,000        
Future lease rental payments due, in 2020   100,000,000        
Future lease rental payments due, after 2020   100,000,000        
Allowance for loan and lease losses   597,843,000 605,196,000 $ 647,870,000   $ 769,075,000
Interest income under original terms for NAL loans   20,000,000 21,000,000 23,000,000    
Interest income recorded for NAL loans   10,000,000 8,000,000 5,000,000    
Interest income under original terms for TDR loans   46,000,000 45,000,000 44,000,000    
Interest income recorded for TDR loans   $ 41,000,000 39,000,000 36,000,000    
Redefault status number of days   90 days        
Threshold period of consecutive payments to remove from nonaccrual status   6 months        
Amount of security for borrowing and advances   $ 17,500,000,000        
Macquarie Equipment Finance            
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]            
Leases and loans receivable, fair value $ 839,000,000          
Lease residual value $ 200,000,000          
Amount of security for borrowing and advances   $ 185,000,000        
Number of securitizations | securitization 2 2        
Camco Financial            
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]            
Leases and loans receivable, fair value         $ 559,000,000  
Purchase credit-impaired            
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]            
Allowance for loan and lease losses   $ 3,000,000 4,000,000      
C&I            
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]            
Allowance for loan and lease losses   298,746,000 286,995,000 265,801,000   241,051,000
Threshold outstanding balance for quarterly impairment evaluation   $ 1,000,000        
Redefault status number of days   90 days        
Threshold period past due for nonperforming status   90 days        
Residential Mortgage            
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]            
Allowance for loan and lease losses   $ 41,646,000 $ 47,211,000 $ 39,577,000   $ 61,658,000
Threshold period past due for nonperforming status   150 days