XML 55 R56.htm IDEA: XBRL DOCUMENT v2.4.0.8
Loans and Allowance for Credit Losses - Additional Information (Detail) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
MortgageLoan
Jun. 30, 2014
MortgageLoan
Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans pledged at the Federal Home Loan Bank ("FHLB") $ 78,000,000,000 $ 78,000,000,000 $ 77,200,000,000
Loans pledged at the Federal Reserve Bank 60,500,000,000 60,500,000,000 53,000,000,000
Unearned interest and deferred fees and costs on loans 574,000,000 574,000,000 556,000,000
Contractually required payments receivable for all purchased nonimpaired loans acquired in the Charter One acquisition 1,500,000,000 1,500,000,000  
Contractual cash flows not expected to be collected in the Charter One acquisition 247,000,000 247,000,000  
Fair value of loans acquired in the Charter One acquisition 969,000,000 969,000,000  
Purchased impaired loans acquired in the Charter One acquisition 0 0  
Minimum period for non collection of principal and interest placed on nonaccrual status for commercial lending segment loans   90 days  
Minimum period beyond which revolving consumer lines and credit cards are charged off   180 days  
Minimum period beyond which residential mortgages and other retail loans secured by 1-4 family properties are charged down to fair value of the collateral securing the loan less costs to sell   180 days  
Minimum period beyond which other retail loans not secured by 1-4 family properties are charged off   120 days  
Foreclosed residential real estate property included in other real estate owned 265,000,000 265,000,000  
Foreclosed residential real estate property included in other real estate owned excluding covered assets 235,000,000 235,000,000  
Foreclosed residential real estate related to mortgage loans whose payments are insured by the Federal Housing Administration or guaranteed by the Department of Veterans Affairs 583,000,000 583,000,000  
Residential mortgage loans secured by residential real estate in process of foreclosure 3,400,000,000 3,400,000,000  
Maximum restructuring period under credit card and other retail loan financial difficulty modifications   60 months  
Number of residential mortgage loans, home equity and second mortgage loans, and GNMA loans where trial period arrangement was unsuccessful and no longer eligible for a permanent modification 702 878  
Outstanding balance of residential mortgage loans, home equity and second mortgage loans, and GNMA loans where trial period was unsuccessful and no longer eligible for a permanent modification 79,000,000 102,000,000  
Remaining term for single family residential mortgages covered under loss sharing agreements   5 years  
Purchased impaired loans included in covered loans classified as nonperforming assets 5,000,000 5,000,000 5,000,000
Commercial Lending Segment [Member] | Maximum [Member]
     
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Period for capturing full economic cycle in evaluation   13 years  
Commercial Lending Segment [Member] | Minimum [Member]
     
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Impairment loan threshold for allowance in which loans are individually analyzed 5,000,000 5,000,000  
Junior Lien [Member]
     
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and lines in a junior lien position secured by 1-4 family properties placed on nonaccrual status   120 days  
First Lien [Member]
     
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and lines in a junior lien position placed on nonaccrual status when behind a first lien past due   180 days  
Government National Mortgage Association [Member]
     
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Residential mortgage loans secured by residential real estate in process of foreclosure purchased from Government National Mortgage Association mortgage pools whose repayments are insured by the Federal Housing Administration or guaranteed by the Department of Veterans Affairs   2,200,000,000  
Residential Mortgages [Member]
     
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Number of loans in trial period 211 211  
Outstanding balance of loans in trial period 29,000,000 29,000,000  
Estimated post-modification balance of loans in trial period 33,000,000 33,000,000  
Home equity and second mortgage loans [Member]
     
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Number of loans in trial period 30 30  
Outstanding balance of loans in trial period 1,000,000 1,000,000  
Estimated post-modification balance of loans in trial period 1,000,000 1,000,000  
Loans Purchased from GNMA Mortgage Pools [Member]
     
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Number of loans in trial period 1,531 1,531  
Outstanding balance of loans in trial period 187,000,000 187,000,000  
Estimated post-modification balance of loans in trial period $ 185,000,000 $ 185,000,000