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 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Mar. 31, 2014
Dec. 31, 2013
Mar. 31, 2013
Dec. 31, 2012
On Balance Sheet Assets [Abstract]                
Loans and leases $ 911,899,000,000   $ 911,899,000,000     $ 928,233,000,000    
Allowance for loan and lease losses (15,811,000,000) (21,235,000,000) (15,811,000,000) (21,235,000,000) (16,618,000,000) (17,428,000,000) (22,441,000,000) (24,179,000,000)
All other Assets 121,651,000,000   121,651,000,000     124,090,000,000    
Total assets 2,170,557,000,000 [1] 2,123,320,000,000 [1] 2,170,557,000,000 [1] 2,123,320,000,000 [1]   2,102,273,000,000 [1]    
On Balance Sheet Liabilities [Abstract]                
Long-term debt 257,071,000,000   257,071,000,000     249,674,000,000    
Total liabilities 1,933,146,000,000   1,933,146,000,000     1,869,588,000,000    
In Text Details [Abstract]                
Remaining Borrowing Capacity On Home Equity Line 61,000,000   61,000,000     82,000,000    
Repurchase of loans from home equity securitization trusts 107,000,000 77,000,000 209,000,000 116,000,000        
Consolidated VIEs [Member]
                
On Balance Sheet Assets [Abstract]                
Loans and leases 102,799,000,000   102,799,000,000     109,118,000,000    
Allowance for loan and lease losses (2,326,000,000)   (2,326,000,000)     (2,674,000,000)    
All other Assets 3,946,000,000   3,946,000,000     4,577,000,000    
Total assets 112,281,000,000   112,281,000,000     121,002,000,000    
On Balance Sheet Liabilities [Abstract]                
Long-term debt 16,333,000,000   16,333,000,000     19,448,000,000    
All other liabilities 93,000,000   93,000,000     253,000,000    
Total liabilities 17,353,000,000   17,353,000,000     20,851,000,000    
Home Equity Line of Credit [Member]
                
Variable Interest Entity [Line Items]                
Maximum loss exposure 6,726,000,000 [2]   6,726,000,000 [2]     7,486,000,000 [2]    
On Balance Sheet Assets [Abstract]                
Trading account assets 11,000,000   11,000,000     12,000,000    
Debt securities carried at fair value 29,000,000   29,000,000     25,000,000    
Loans and leases 1,210,000,000   1,210,000,000     1,329,000,000    
Allowance for loan and lease losses (73,000,000)   (73,000,000)     (80,000,000)    
All other Assets 29,000,000   29,000,000     20,000,000    
Total assets 1,206,000,000   1,206,000,000     1,306,000,000    
On Balance Sheet Liabilities [Abstract]                
Long-term debt 1,264,000,000   1,264,000,000     1,450,000,000    
All other liabilities 0   0     90,000,000    
Total liabilities 1,264,000,000   1,264,000,000     1,540,000,000    
Principal balance outstanding 8,305,000,000   8,305,000,000     8,871,000,000    
In Text Details [Abstract]                
Trust certificates outstanding 6,800,000,000   6,800,000,000     7,600,000,000    
Reserve For Losses For Home Equity Securitizations 12,000,000   12,000,000     12,000,000    
Servicing Fees, Net 8,000,000 13,000,000 17,000,000 26,000,000        
Home Equity Line of Credit [Member] | Consolidated VIEs [Member]
                
Variable Interest Entity [Line Items]                
Maximum loss exposure 1,166,000,000 [2]   1,166,000,000 [2]     1,269,000,000 [2]    
On Balance Sheet Assets [Abstract]                
Trading account assets 0   0     0    
Debt securities carried at fair value 0   0     0    
Loans and leases 1,210,000,000   1,210,000,000     1,329,000,000    
Allowance for loan and lease losses (73,000,000)   (73,000,000)     (80,000,000)    
All other Assets 29,000,000   29,000,000     20,000,000    
Total assets 1,166,000,000   1,166,000,000     1,269,000,000    
On Balance Sheet Liabilities [Abstract]                
Long-term debt 1,264,000,000   1,264,000,000     1,450,000,000    
All other liabilities 0   0     90,000,000    
Total liabilities 1,264,000,000   1,264,000,000     1,540,000,000    
Principal balance outstanding 1,210,000,000   1,210,000,000     1,329,000,000    
Home Equity Line of Credit [Member] | Unconsolidated VIEs [Member]
                
Variable Interest Entity [Line Items]                
Maximum loss exposure 5,560,000,000 [2]   5,560,000,000 [2]     6,217,000,000 [2]    
On Balance Sheet Assets [Abstract]                
Trading account assets 11,000,000   11,000,000     12,000,000    
Debt securities carried at fair value 29,000,000   29,000,000     25,000,000    
Loans and leases 0   0     0    
Allowance for loan and lease losses 0   0     0    
All other Assets 0   0     0    
Total assets 40,000,000   40,000,000     37,000,000    
On Balance Sheet Liabilities [Abstract]                
Long-term debt 0   0     0    
All other liabilities 0   0     0    
Total liabilities 0   0     0    
Principal balance outstanding $ 7,095,000,000   $ 7,095,000,000     $ 7,542,000,000    
[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.