Annual report pursuant to Section 13 and 15(d)

Securitizations and Other Variable Interest Entities - Other Asset Backed (Details)

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Securitizations and Other Variable Interest Entities - Other Asset Backed (Details) (USD $)
 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2013
Resecuritization Trusts [Member]
Dec. 31, 2012
Resecuritization Trusts [Member]
Dec. 31, 2013
Municipal Bonds [Member]
Dec. 31, 2012
Municipal Bonds [Member]
Dec. 31, 2013
Automobile And Other Securitization Trusts [Member]
Dec. 31, 2012
Automobile And Other Securitization Trusts [Member]
Dec. 31, 2013
Automobile Loan [Member]
Dec. 31, 2012
Automobile Loan [Member]
Dec. 31, 2013
Student Loan [Member]
Dec. 31, 2012
Student Loan [Member]
Dec. 31, 2013
Other Loan and Receivable [Member]
Dec. 31, 2012
Other Loan and Receivable [Member]
Dec. 31, 2013
Unconsolidated VIEs [Member]
Resecuritization Trusts [Member]
Dec. 31, 2012
Unconsolidated VIEs [Member]
Resecuritization Trusts [Member]
Dec. 31, 2013
Unconsolidated VIEs [Member]
Resecuritization Trusts [Member]
Senior Debt Securities [Member]
Dec. 31, 2012
Unconsolidated VIEs [Member]
Resecuritization Trusts [Member]
Senior Debt Securities [Member]
Dec. 31, 2013
Unconsolidated VIEs [Member]
Resecuritization Trusts [Member]
Subordinated Debt Securities [Member]
Dec. 31, 2012
Unconsolidated VIEs [Member]
Resecuritization Trusts [Member]
Subordinated Debt Securities [Member]
Dec. 31, 2013
Unconsolidated VIEs [Member]
Municipal Bonds [Member]
Dec. 31, 2012
Unconsolidated VIEs [Member]
Municipal Bonds [Member]
Dec. 31, 2013
Unconsolidated VIEs [Member]
Municipal Bonds [Member]
Senior Debt Securities [Member]
Dec. 31, 2012
Unconsolidated VIEs [Member]
Municipal Bonds [Member]
Senior Debt Securities [Member]
Dec. 31, 2013
Unconsolidated VIEs [Member]
Municipal Bonds [Member]
Subordinated Debt Securities [Member]
Dec. 31, 2012
Unconsolidated VIEs [Member]
Municipal Bonds [Member]
Subordinated Debt Securities [Member]
Dec. 31, 2013
Unconsolidated VIEs [Member]
Automobile And Other Securitization Trusts [Member]
Dec. 31, 2012
Unconsolidated VIEs [Member]
Automobile And Other Securitization Trusts [Member]
Dec. 31, 2013
Unconsolidated VIEs [Member]
Automobile And Other Securitization Trusts [Member]
Senior Debt Securities [Member]
Dec. 31, 2012
Unconsolidated VIEs [Member]
Automobile And Other Securitization Trusts [Member]
Senior Debt Securities [Member]
Dec. 31, 2013
Unconsolidated VIEs [Member]
Automobile And Other Securitization Trusts [Member]
Subordinated Debt Securities [Member]
Dec. 31, 2012
Unconsolidated VIEs [Member]
Automobile And Other Securitization Trusts [Member]
Subordinated Debt Securities [Member]
Dec. 31, 2013
Consolidated VIEs [Member]
Dec. 31, 2012
Consolidated VIEs [Member]
Dec. 31, 2013
Consolidated VIEs [Member]
Resecuritization Trusts [Member]
Dec. 31, 2012
Consolidated VIEs [Member]
Resecuritization Trusts [Member]
Dec. 31, 2013
Consolidated VIEs [Member]
Municipal Bonds [Member]
Dec. 31, 2012
Consolidated VIEs [Member]
Municipal Bonds [Member]
Dec. 31, 2013
Consolidated VIEs [Member]
Automobile And Other Securitization Trusts [Member]
Dec. 31, 2012
Consolidated VIEs [Member]
Automobile And Other Securitization Trusts [Member]
Dec. 31, 2012
Automobile Loan [Member]
Dec. 31, 2012
Automobile Loan [Member]
Variable Interest Entity [Line Items]                                                                                        
Maximum loss exposure                                 $ 11,913,000,000 $ 20,715,000,000         $ 2,192,000,000 $ 3,341,000,000         $ 81,000,000 $ 122,000,000             $ 164,000,000 $ 126,000,000 $ 2,667,000,000 $ 2,505,000,000 $ 94,000,000 $ 1,255,000,000    
On Balance Sheet Assets [Abstract]                                                                                        
Trading account assets                                     971,000,000 [1],[2] 1,281,000,000 [1],[2]         53,000,000 [1],[2] 12,000,000 [1],[2]         1,000,000 [1],[2] 37,000,000 [1],[2]         319,000,000 220,000,000 2,684,000,000 2,505,000,000 0 0    
Loans and leases 928,233,000,000 907,819,000,000                                                                 109,118,000,000 123,227,000,000 0 0 0 0 680,000,000 2,523,000,000    
Allowance for loan and lease losses (17,428,000,000) (24,179,000,000) (33,783,000,000) (41,885,000,000)                                                             (2,674,000,000) (3,658,000,000) 0 0 0 0 0 (2,000,000)    
Debt securities carried at fair value 268,795,000,000 310,850,000,000                                 10,866,000,000 [1],[2] 19,343,000,000 [1],[2] 71,000,000 [1],[2] 75,000,000 [1],[2]     0 [1],[2] 540,000,000 [1],[2] 0 [1],[2] 0 [1],[2]     70,000,000 [1],[2] 74,000,000 [1],[2] 0 [1],[2] 0 [1],[2]                    
Residual interests held                                 5,000,000 [3] 16,000,000 [3]         0 [3] 0 [3]         0 [3] 0 [3]                            
All other assets 124,090,000,000 150,112,000,000                             0 0         0 0         10,000,000 11,000,000         4,577,000,000 4,654,000,000 0 0 0 0 61,000,000 250,000,000    
Year-end total assets 2,102,273,000,000 [4] 2,209,974,000,000 [4]                             11,913,000,000 20,715,000,000         53,000,000 552,000,000         81,000,000 122,000,000         121,002,000,000 134,431,000,000 319,000,000 220,000,000 2,684,000,000 2,505,000,000 741,000,000 2,771,000,000    
Unconsolidated, Total assets of VIEs                                 40,924,000,000 [5] 42,818,000,000 [5]         3,643,000,000 [5] 4,980,000,000 [5]         1,788,000,000 [5] 1,890,000,000 [5]                            
On Balance Sheet Liabilities [Abstract]                                                                                        
Short-term borrowings 45,999,000,000 30,731,000,000                                                                 1,150,000,000 3,731,000,000 0 0 1,073,000,000 2,859,000,000 0 0    
Long-term debt 249,674,000,000 275,585,000,000                                                                 19,448,000,000 34,256,000,000 155,000,000 94,000,000 17,000,000 0 646,000,000 1,513,000,000    
All other liabilities                                                                     253,000,000 360,000,000 0 0 0 0 1,000,000 82,000,000    
Liabilities 1,869,588,000,000 1,973,018,000,000                                                                 20,851,000,000 38,347,000,000 155,000,000 94,000,000 1,090,000,000 2,859,000,000 647,000,000 1,595,000,000    
In Text Details [Abstract]                                                                                        
Transfers of Financial Assets Accounted for as Sale, Initial Fair Value of Assets Obtained as Proceeds         22,200,000,000 37,400,000,000                                                                            
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale, Gain (Loss) on Sale         0                                                                              
Cash Flows Between Transferor and Transferee, Proceeds from New Transfers             188,000,000 879,000,000                                                                        
Liquidity Commitments To Unconsolidated Securitization Trusts             2,100,000,000 2,800,000,000                                                                        
Weighted average remaining life of bonds held in the trusts in years 8 years 2 months 12 days                                                                                      
Qualitative and Quantitative Information, Transferor's Continuing Involvement, Principal Amount Outstanding                                                                                     2,400,000,000 (7,000,000)
Qualitative and Quantitative Information, Transferor's Continuing Involvement, Principal Amount Outstanding, Continued Recognition, Amount                 $ 2,500,000,000 $ 4,700,000,000 $ 877,000,000 $ 3,500,000,000 $ 741,000,000 $ 897,000,000 $ 911,000,000 $ 290,000,000                                                        
[1] As a holder of these securities, the Corporation receives scheduled principal and interest payments. During 2013 and 2012, there were no OTTI losses recorded on those securities classified as AFS debt securities.
[2] The retained senior and subordinate securities were valued using quoted market prices or observable market inputs (Level 2 of the fair value hierarchy).
[3] The retained residual interests are carried at fair value which was derived using model valuations (Level 2 of the fair value hierarchy).
[4] There were no material intersegment revenues.
[5] Total assets include loans the Corporation transferred with which the Corporation has continuing involvement, which may include servicing the loan.