Annual report pursuant to Section 13 and 15(d)

Securitizations and Other Variable Interest Entities - Home Equity Loans (Details)

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Securitizations and Other Variable Interest Entities - Home Equity Loans (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Variable Interest Entity [Line Items]        
Repurchase of loans from home equity securitization trusts $ 87,000,000 $ 28,000,000    
On Balance Sheet Assets [Abstract]        
AFS Debt Securities 286,906,000,000 276,151,000,000    
Loans and leases 907,819,000,000 926,200,000,000    
Allowance for Loan and Lease Losses (24,179,000,000) (33,783,000,000) (41,885,000,000) (47,988,000,000)
Total assets 2,209,974,000,000 [1] 2,129,046,000,000 [1]    
On Balance Sheet Liabilities [Abstract]        
Long-term debt (includes $49,161 and $46,239 measured at fair value) 275,585,000,000 372,265,000,000    
Total liabilities 1,973,018,000,000 1,898,945,000,000    
In Text Details [Abstract]        
Remaining Borrowing Capacity On Home Equity Line 196,000,000 460,000,000    
Consolidated VIEs [Member]
        
On Balance Sheet Assets [Abstract]        
Loans and leases 123,227,000,000 140,194,000,000    
Allowance for Loan and Lease Losses (3,658,000,000) (5,066,000,000)    
Total assets 134,431,000,000 151,761,000,000    
On Balance Sheet Liabilities [Abstract]        
Long-term debt (includes $49,161 and $46,239 measured at fair value) 34,256,000,000 49,054,000,000    
Other Liabilities 360,000,000 1,116,000,000    
Total liabilities 38,347,000,000 55,947,000,000    
Home Equity Line of Credit [Member]
        
Variable Interest Entity [Line Items]        
Collection reinvested in revolving period securitizations 0      
Maximum loss exposure 8,711,000,000 [2] 10,235,000,000 [2]    
On Balance Sheet Assets [Abstract]        
Trading account assets 8,000,000 5,000,000    
AFS Debt Securities 14,000,000 13,000,000    
Loans and leases 2,197,000,000 2,975,000,000    
Allowance for Loan and Lease Losses (193,000,000) (303,000,000)    
Total assets 2,026,000,000 2,690,000,000    
On Balance Sheet Liabilities [Abstract]        
Long-term debt (includes $49,161 and $46,239 measured at fair value) 2,331,000,000 3,081,000,000    
Other Liabilities 92,000,000 66,000,000    
Total liabilities 2,423,000,000 3,147,000,000    
Principal balance outstanding 14,841,000,000 17,397,000,000    
In Text Details [Abstract]        
Trust certificates outstanding 9,000,000,000 10,700,000,000    
Reserve For Losses For Home Equity Securitizations 51,000,000 69,000,000    
Servicing Fees, Net 59,000,000 62,000,000    
Home Equity Line of Credit [Member] | Consolidated VIEs [Member]
        
Variable Interest Entity [Line Items]        
Maximum loss exposure 2,004,000,000 [2] 2,672,000,000 [2]    
On Balance Sheet Assets [Abstract]        
Trading account assets 0 0    
AFS Debt Securities 0 0    
Loans and leases 2,197,000,000 2,975,000,000    
Allowance for Loan and Lease Losses (193,000,000) (303,000,000)    
Total assets 2,004,000,000 2,672,000,000    
On Balance Sheet Liabilities [Abstract]        
Long-term debt (includes $49,161 and $46,239 measured at fair value) 2,331,000,000 3,081,000,000    
Other Liabilities 92,000,000 66,000,000    
Total liabilities 2,423,000,000 3,147,000,000    
Principal balance outstanding 2,197,000,000 2,975,000,000    
Home Equity Line of Credit [Member] | Unconsolidated VIEs [Member]
        
Variable Interest Entity [Line Items]        
Maximum loss exposure 6,707,000,000 [2] 7,563,000,000 [2]    
On Balance Sheet Assets [Abstract]        
Trading account assets 8,000,000 5,000,000    
AFS Debt Securities 14,000,000 13,000,000    
Loans and leases 0 0    
Allowance for Loan and Lease Losses 0 0    
Total assets 22,000,000 18,000,000    
On Balance Sheet Liabilities [Abstract]        
Long-term debt (includes $49,161 and $46,239 measured at fair value) 0 0    
Other Liabilities 0 0    
Total liabilities 0 0    
Principal balance outstanding $ 12,644,000,000 $ 14,422,000,000    
[1] Total assets include long-lived assets, which are primarily located in the U.S.
[2] For unconsolidated VIEs, the maximum loss exposure includes outstanding trust certificates issued by trusts in rapid amortization, net of recorded reserves, and excludes the liability for representations and warranties obligations and corporate guarantees.