Quarterly report pursuant to Section 13 or 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 $)
 3 Months Ended
Mar. 31, 2012
Dec. 31, 2011
Mar. 31, 2011
Dec. 31, 2010
Variable Interest Entity [Line Items]        
Collection reinvested in revolving period securitizations $ 0      
On Balance Sheet Assets [Abstract]        
AFS Debt Securities 297,040,000,000 276,151,000,000    
Loans and leases 902,294,000,000 926,200,000,000    
Allowance for loan and lease losses (32,211,000,000) (33,783,000,000) (39,843,000,000) (41,885,000,000)
Total assets 2,181,449,000,000 2,129,046,000,000 2,274,532,000,000 [1]  
On Balance Sheet Liabilities [Abstract]        
Long-term debt 354,912,000,000 372,265,000,000    
Total liabilities 1,948,950,000,000 1,898,945,000,000    
In Text Details [Abstract]        
Remaining Borrowing Capacity On Home Equity Line 417,000,000 460,000,000    
Consolidated VIEs [Member]
        
On Balance Sheet Assets [Abstract]        
Loans and leases 133,742,000,000 140,194,000,000    
Allowance for loan and lease losses (4,509,000,000) (5,066,000,000)    
Total assets 143,957,000,000 151,761,000,000    
On Balance Sheet Liabilities [Abstract]        
Long-term debt 44,267,000,000 49,054,000,000    
Other Liabilities 978,000,000 1,116,000,000    
Total liabilities 50,843,000,000 55,947,000,000    
Home Equity [Member]
        
Variable Interest Entity [Line Items]        
Maximum loss exposure 9,828,000,000 [2] 10,235,000,000 [2]    
On Balance Sheet Assets [Abstract]        
Trading account assets 5,000,000 5,000,000    
AFS Debt Securities 14,000,000 13,000,000    
Loans and leases 2,859,000,000 2,975,000,000    
Allowance for loan and lease losses (267,000,000) (303,000,000)    
Total assets 2,611,000,000 2,690,000,000    
On Balance Sheet Liabilities [Abstract]        
Long-term debt 2,966,000,000 3,081,000,000    
Other Liabilities 76,000,000 66,000,000    
Total liabilities 3,042,000,000 3,147,000,000    
Principal balance outstanding 16,730,000,000 17,397,000,000    
In Text Details [Abstract]        
Trust certificates outstanding 10,200,000,000 10,700,000,000    
Reserve For Losses For Home Equity Securitizations 63,000,000 69,000,000    
Servicing Fees, Net 17,000,000      
Home Equity [Member] | Consolidated VIEs [Member]
        
Variable Interest Entity [Line Items]        
Maximum loss exposure 2,592,000,000 [2] 2,672,000,000 [2]    
On Balance Sheet Assets [Abstract]        
Trading account assets 0 0    
AFS Debt Securities 0 0    
Loans and leases 2,859,000,000 2,975,000,000    
Allowance for loan and lease losses (267,000,000) (303,000,000)    
Total assets 2,592,000,000 2,672,000,000    
On Balance Sheet Liabilities [Abstract]        
Long-term debt 2,966,000,000 3,081,000,000    
Other Liabilities 76,000,000 66,000,000    
Total liabilities 3,042,000,000 3,147,000,000    
Principal balance outstanding 2,859,000,000 2,975,000,000    
Home Equity [Member] | Unconsolidated VIEs [Member]
        
Variable Interest Entity [Line Items]        
Maximum loss exposure 7,236,000,000 [2] 7,563,000,000 [2]    
On Balance Sheet Assets [Abstract]        
Trading account assets 5,000,000 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 19,000,000 18,000,000    
On Balance Sheet Liabilities [Abstract]        
Long-term debt 0 0    
Other Liabilities 0 0    
Total liabilities 0 0    
Principal balance outstanding $ 13,871,000,000 $ 14,422,000,000    
[1] There were no material intersegment revenues.
[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.