Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details Textuals)

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Fair Value Measurements (Details Textuals) (USD $)
In Millions
 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2011
Dec. 31, 2010
Sep. 30, 2011
Accrued Liabilities [Member]
Sep. 30, 2010
Accrued Liabilities [Member]
Sep. 30, 2011
Accrued Liabilities [Member]
Sep. 30, 2011
Long-term Debt [Member]
Sep. 30, 2010
Long-term Debt [Member]
Sep. 30, 2011
Long-term Debt [Member]
Sep. 30, 2010
Long-term Debt [Member]
Sep. 30, 2011
Level 3 [Member]
Fair Value, Measurements, Recurring [Member]
Dec. 31, 2010
Level 3 [Member]
Fair Value, Measurements, Recurring [Member]
Sep. 30, 2010
Level 3 [Member]
Fair Value, Measurements, Recurring [Member]
Sep. 30, 2011
Fair Value, Measurements, Recurring [Member]
Dec. 31, 2010
Fair Value, Measurements, Recurring [Member]
Sep. 30, 2011
Other assets [Member]
Sep. 30, 2010
Other assets [Member]
Sep. 30, 2011
Other assets [Member]
Sep. 30, 2010
Other assets [Member]
Sep. 30, 2011
Trading Account Assets [Member]
Sep. 30, 2010
Trading Account Assets [Member]
Sep. 30, 2011
Trading Account Assets [Member]
Sep. 30, 2010
Trading Account Assets [Member]
Sep. 30, 2011
Loans and leases [Member]
Sep. 30, 2010
Loans and leases [Member]
Sep. 30, 2011
Loans and leases [Member]
Sep. 30, 2010
Loans and leases [Member]
Sep. 30, 2011
AFS debt securities [Member]
Sep. 30, 2011
Derivative assets [Member]
Sep. 30, 2010
Derivative assets [Member]
Sep. 30, 2011
Derivative assets [Member]
Sep. 30, 2010
Derivative assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                                                              
Derivative assets included in net derivatives $ 79,044 $ 73,000               $ 16,047 [1] $ 18,773 [1] $ 20,400 $ 79,044 [1] $ 73,000 [1]                                  
Derivative liabilities included in net derivatives                   9,800 11,028 [1] 10,900 59,304 [1] 55,914 [1]                                  
More significant transfers into Level 3                             0 [2],[3] 0 [3],[4] 375 [2],[3] 0 [2],[3] 665 [2] 270 1,604 [2] 3,026 [2] 0 [2],[5],[6] 0 [4],[7] 5 [2],[5],[6] 0 [2],[7] 3,400 285 [2],[8] 307 [4],[9] 625 [2],[8] 1,075 [2],[9]
Gross Transfers into Level 3     0 0 [2] 0 (679) [2] (477) [2] (1,709) [2] (1,374) [2],[7]                                            
More significant transfers out of Level 3                             0 [2],[3] 0 [3],[4] (1,633) [2],[3] (235) [2],[3] (435) [2] (1,536) (1,184) [2] (3,135) [2] (4,345) [2],[5],[6] 0 [4],[7] (4,345) 0 [2],[7]   374 [2],[8] (603) [4],[9] (104) [2],[8] (372) [2],[9]
Gross Transfers out of Level 3     $ (761) [2] $ 0 $ (761) [2] $ (702) [2] $ (475) $ (1,238) [2] $ (1,418) [2],[7]                                            
[1] For further disaggregation of derivative assets and liabilities, see Note 4 – Derivatives.
[2] Assets (liabilities). For assets, increase / (decrease) to Level 3 and for liabilities, (increase) / decrease to Level 3.
[3] Other assets is primarily comprised of AFS marketable equity securities.
[4] ) Assets (liabilities). For assets, increase / (decrease) to Level 3 and for liabilities, (increase) / decrease to Level 3.
[5] Amounts represent items that are accounted for under the fair value option.
[6] Issuances represent loan originations and mortgage servicing rights retained following securitizations or whole loan sales.
[7] Amounts represent instruments that are accounted for under the fair value option.
[8] Net derivatives at September 30, 2011 include derivative assets of $16.0 billion and derivative liabilities of $9.8 billion.
[9] Net derivatives at September 30, 2010 include derivative assets of $20.4 billion and derivative liabilities of $10.9 billion.