Quarterly report pursuant to Section 13 or 15(d)

Securitizations and Other Variable Interest Entities - Customer Vehicles (Details)

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Securitizations and Other Variable Interest Entities - Customer Vehicles (Details) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Sep. 30, 2012
On Balance Sheet Assets [Abstract]      
Derivative assets $ 53,161 $ 53,497  
Loans and leases 934,392 907,819  
Loans held-for-sale 15,001 19,413  
Other Assets 122,068 150,112  
Total assets 2,126,653 2,209,974 2,166,162
On Balance Sheet Liabilities [Abstract]      
Commercial paper and other short-term borrowings 40,769 30,731  
Long-term debt 255,331 275,585  
Total liabilities 1,894,371 1,973,018  
Consolidated VIEs [Member]
      
On Balance Sheet Assets [Abstract]      
Derivative assets 199 333  
Loans and leases 109,996 123,227  
Loans held-for-sale 1,875 1,969  
Other Assets 4,314 4,654  
Total assets 122,165 134,431  
On Balance Sheet Liabilities [Abstract]      
Commercial paper and other short-term borrowings 2,180 3,731  
Long-term debt 24,481 34,256  
Other Liabilities 382 360  
Total liabilities 27,043 38,347  
Customer Vehicles [Member]
      
Variable Interest Entity [Line Items]      
Maximum loss exposure 4,833 4,395  
On Balance Sheet Assets [Abstract]      
Trading account assets 2,370 2,980  
Derivative assets 335 516  
Loans and leases 846 523  
Loans held-for-sale 1,038 950  
Other Assets 793 763  
Total assets 5,382 5,732  
On Balance Sheet Liabilities [Abstract]      
Commercial paper and other short-term borrowings 82 131  
Long-term debt 2,413 3,179  
Other Liabilities 502 418  
Total liabilities 2,997 3,728  
Total assets of VIEs 9,189 9,173  
In Text Details [Abstract]      
Liquidity Commitments To Unconsolidated Securitization Trusts 667 742  
Customer Vehicles [Member] | Consolidated VIEs [Member]
      
Variable Interest Entity [Line Items]      
Maximum loss exposure 3,575 2,994  
On Balance Sheet Assets [Abstract]      
Trading account assets 2,283 2,882  
Derivative assets 0 0  
Loans and leases 846 523  
Loans held-for-sale 1,038 950  
Other Assets 793 763  
Total assets 4,960 5,118  
On Balance Sheet Liabilities [Abstract]      
Commercial paper and other short-term borrowings 82 131  
Long-term debt 2,413 3,179  
Other Liabilities 75 29  
Total liabilities 2,570 3,339  
Consolidated, Total assets of VIEs 4,960 5,118  
Customer Vehicles [Member] | Unconsolidated VIEs [Member]
      
Variable Interest Entity [Line Items]      
Maximum loss exposure 1,258 1,401  
On Balance Sheet Assets [Abstract]      
Trading account assets 87 98  
Derivative assets 335 516  
Loans and leases 0 0  
Loans held-for-sale 0 0  
Other Assets 0 0  
Total assets 422 614  
On Balance Sheet Liabilities [Abstract]      
Commercial paper and other short-term borrowings 0 0  
Long-term debt 0 0  
Other Liabilities 427 389  
Total liabilities 427 389  
Unconsolidated, Total assets of VIEs $ 4,229 $ 4,055