Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Reconciliation (Details)

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Fair Value Measurements - Reconciliation (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2012
Dec. 31, 2011
Mar. 31, 2012
Fair Value, Measurements, Recurring [Member]
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Mar. 31, 2012
Fair Value, Measurements, Recurring [Member]
Fair Value, Inputs, Level 3 [Member]
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Fair Value, Inputs, Level 3 [Member]
Mar. 31, 2011
Fair Value, Measurements, Recurring [Member]
Fair Value, Inputs, Level 3 [Member]
Mar. 31, 2012
Corporate securities, trading loans and other [Member]
Mar. 31, 2011
Corporate securities, trading loans and other [Member]
Mar. 31, 2011
Short-term Debt [Member]
Mar. 31, 2012
Accrued Liabilities [Member]
Mar. 31, 2011
Accrued Liabilities [Member]
Mar. 31, 2012
Long-term Debt [Member]
Mar. 31, 2011
Long-term Debt [Member]
Mar. 31, 2012
Trading Account Assets [Member]
Mar. 31, 2011
Trading Account Assets [Member]
Mar. 31, 2012
Corporate securities, trading loans and other [Member]
Mar. 31, 2011
Corporate securities, trading loans and other [Member]
Mar. 31, 2012
Equity securities [Member]
Mar. 31, 2011
Equity securities [Member]
Mar. 31, 2012
Non-U.S. sovereign debt [Member]
Mar. 31, 2011
Non-U.S. sovereign debt [Member]
Mar. 31, 2012
Mortgage trading loans and ABS [Member]
Mar. 31, 2011
Mortgage trading loans and ABS [Member]
Mar. 31, 2012
Derivative assets [Member]
Mar. 31, 2011
Derivative assets [Member]
Mar. 31, 2012
Available-for-sale debt securities [Member]
Mar. 31, 2011
Available-for-sale debt securities [Member]
Mar. 31, 2012
Agency [Member]
Mar. 31, 2011
Agency [Member]
Mar. 31, 2011
Agency-collateralized mortgage obligations [Member]
Mar. 31, 2012
Non-Agency Residential MBS [Member]
Mar. 31, 2011
Non-Agency Residential MBS [Member]
Mar. 31, 2012
Non-Agency Commercial MBS [Member]
Mar. 31, 2011
Non-Agency Commercial MBS [Member]
Mar. 31, 2011
Non-U.S. Securities [Member]
Mar. 31, 2012
Corporate Bond [Member]
Mar. 31, 2011
Corporate Bond [Member]
Mar. 31, 2012
Other taxable securities [Member]
Mar. 31, 2011
Other taxable securities [Member]
Mar. 31, 2012
Tax-exempt securities [Member]
Mar. 31, 2011
Tax-exempt securities [Member]
Mar. 31, 2012
Loans and leases [Member]
Mar. 31, 2011
Loans and leases [Member]
Mar. 31, 2012
Mortgage servicing rights [Member]
Mar. 31, 2011
Mortgage servicing rights [Member]
Mar. 31, 2012
Loans held-for-sale [Member]
Mar. 31, 2011
Loans held-for-sale [Member]
Mar. 31, 2012
Other assets [Member]
Mar. 31, 2011
Other assets [Member]
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)                                                                                                    
Balance, January 1                             $ 11,455 [1] $ 15,525 [1] $ 6,880 [1],[2] $ 7,751 [1],[2] $ 544 [1] $ 623 [1] $ 342 [1] $ 243 [1] $ 3,689 [1] $ 6,908 [1] $ 5,866 [1],[3] $ 7,745 [1],[4] $ 8,012 [1] $ 15,873 [1] $ 37 [1] $ 4 [1]   $ 860 [1] $ 1,468 [1] $ 40 [1] $ 19 [1] $ 3 [1] $ 162 [1] $ 137 [1] $ 4,265 [1] $ 13,018 [1] $ 2,648 [1] $ 1,224 [1] $ 2,744 [1],[2],[5] $ 3,321 [1],[2],[5] $ 7,378 [1],[5] $ 14,900 [1],[5] $ 3,387 [1],[2] $ 4,140 [1],[2] $ 4,235 [1],[6] $ 6,856 [1],[7]
Gains (Losses) in Earnings                             231 [1] 1,104 [1] 93 [1],[2] 494 [1],[2] 15 [1] 43 [1] 24 [1] 5 [1] 99 [1] 562 [1] (837) [1],[3] 438 [1],[4] (38) [1] 12 [1]    [1]    [1]    [1] (69) [1] (16) [1]    [1]    [1]    [1] (2) [1] 2 [1] 7 [1] 29 [1] 26 [1] (3) [1] 164 [1],[2],[5] 172 [1],[2],[5] 655 [1],[5] 247 [1],[5] 169 [1],[2] 178 [1],[2] (32) [1],[6] 122 [1],[7]
Gains (Losses) in OCI                                [1]    [1]    [1],[2]    [1],[2]    [1]    [1]    [1]    [1]    [1]    [1]    [1],[3]    [1],[4] 54 [1] 42 [1]    [1]    [1]    [1] 19 [1] (22) [1]    [1]    [1]    [1]    [1] 1 [1] 17 [1] 57 [1] 18 [1] 6 [1]    [1],[2],[5]    [1],[2],[5]    [1],[5]    [1],[5]    [1],[2]    [1],[2]    [1],[6]    [1],[7]
Gross Purchases                             1,211 [1] 2,464 [1] 675 [1],[2] 1,550 [1],[2] 79 [1] 100 [1] 273 [1] 48 [1] 184 [1] 766 [1] 359 [1],[3] 502 [1],[4] 360 [1] 608 [1]    [1]    [1] 56 [1]    [1]    [1]    [1]    [1]    [1] (2) [1]    [1] 362 [1] 552 [1]    [1]    [1]    [1],[2],[5]    [1],[2],[5]    [1],[5]    [1],[5] 4 [1],[2] 31 [1],[2] 43 [1],[6] 77 [1],[7]
Gross Sales                             (1,710) [1] (3,510) [1] (1,065) [1],[2] (2,350) [1],[2] (109) [1] (70) [1] (81) [1] (4) [1] (455) [1] (1,086) [1] (321) [1],[3] (748) [1],[4] (328) [1] (345) [1]    [1]    [1]    [1] (293) [1] (237) [1]    [1]    [1]    [1]    [1] (7) [1]    [1] (52) [1] (35) [1] (49) [1]    [1],[2],[5] (109) [1],[2],[5]    [1]    [1],[5] 0 [1],[2] (173) [1],[2] (581) [1],[6] (941) [1],[7]
Gross Issuances                                [1]    [1]    [1],[2]    [1],[2]    [1]    [1]    [1]    [1]    [1]    [1]    [1],[3]    [1],[4]    [1]    [1]    [1]    [1]    [1]    [1]    [1]    [1]    [1]    [1]    [1]    [1]    [1]    [1]    [1]    [1]    [1],[2],[5] 846 [1],[2],[5] 77 [1] 841 [1],[5]    [1],[2]    [1],[2]    [1],[6]    [1],[7]
Gross Settlements                             (288) [1] (245) [1] (189) [1],[2] (181) [1],[2] (10) [1]    [1]    [1]    [1] (89) [1] (64) [1] (634) [1],[3] (1,670) [1],[4] (1,186) [1] (2,876) [1] (4) [1]    [1]    [1]    [1] (262) [1] (2) [1]    [1]    [1]    [1]    [1] (418) [1] (2,582) [1] (762) [1] (32) [1] (117) [1],[2],[5] (616) [1],[2],[5] (521) [1] (706) [1],[5] (97) [1],[2] (123) [1],[2] (167) [1],[6] (288) [1],[7]
Trading Securities 209,775 169,319                                                                                                
Gross Transfers into Level 3                             809 [1] 609 [1] 59 [1],[2] 569 [1],[2] 8 [1] 39 [1]    [1]    [1] 742 [1] 1 [1] 106 307 [1],[4]    [1] 274 [1]    [1]    [1]    [1]    [1] 272 [1]    [1]    [1]    [1]    [1]    [1]    [1] 2 [1]    [1]    [1]    [1],[2],[5] 5 [1],[2],[5]    [1],[5]    [1],[5] 31 [1],[2] 222 [1],[2]    [1],[6]    [1],[7]
Gross Transfers out of Level 3                             (624) [1] (686) [1] (452) [1],[2] (255) [1],[2] (2) [1] (1) [1] (12) [1] (40) [1] (158) [1] (390) [1] (352) [1],[3] (155) [1],[4] (573) [1] (7) [1]    [1] (4) [1]    [1] (488) [1]    [1]    [1]    [1] (3) [1] (27) [1]    [1] (58) [1]    [1]    [1]    [1] (9) [1],[2],[5]    [1],[2],[5]    [1],[5]    [1],[5] (632) [1],[2] (16) [1],[2] (11) [1],[6] (1,633) [1],[7]
Balance March 31                             11,084 [1] 15,261 [1] 6,001 [1],[2] 7,578 [1],[2] 525 [1] 734 [1] 546 [1] 252 [1] 4,012 [1] 6,697 [1] 4,187 [1],[3] 6,419 [1],[4] 6,301 [1] 13,581 [1] 33 [1]    [1] 56 [1] 29 [1] 1,203 [1] 38 [1] 19 [1]    [1] 131 [1] 133 [1] 4,175 [1] 11,024 [1] 1,895 [1] 1,146 [1] 2,782 [1],[2],[5] 3,619 [1],[2],[5] 7,589 [1],[5] 15,282 [1],[5] 2,862 [1],[2] 4,259 [1],[2] 3,487 [1],[6] 4,193 [1],[7]
Balance January 1               (114) [1] (7) [1] (706) [1],[2] (14) [1],[2] (828) [1],[2] (2,943) [1],[2] (2,986) [1],[2]                                                                        
Gains (Losses) in Earnings                   (46) [1],[2] 3 [1],[2] 143 [1],[2] (241) [1],[2] (148) [1],[2]                                                                        
Gains (Losses) in OCI                      [1],[2]    [1],[2]    [1],[2]    [1],[2]    [1],[2]                                                                        
Gross Purchases               48 [1] 7 [1]    [1],[2] 5 [1],[2]    [1],[2] 76 [1],[2] 84 [1],[2]                                                                        
Gross Sales               (27) [1] (102) [1] 0 [1],[2]    [1],[2] (4) [1],[2] (33) [1],[2]    [1],[2]                                                                        
Gross Issuances                      [1],[2]    [1],[2]    [1],[2] (65) [1],[2] (43) [1],[2]                                                                        
Gross Settlements                   26 [1],[2]    [1],[2]    [1],[2] 433 [1],[2] 239 [1],[2]                                                                        
Gross Transfers into Level 3               (65) [1]      [1],[2]    [1],[2]    [1],[2] (532) [1],[2] (637) [1],[2]                                                                        
Gross Transfers out of Level 3               (34) [1]      [1],[2] (3) [1],[2]    [1],[2] (805) [1],[2] (353) [1],[2]                                                                        
Balance March 31               (124) [1] (102) [1] (726) [1],[2] (3) [1],[2] (689) [1],[2] (2,500) [1],[2] (3,138) [1],[2]                                                                        
Derivative assets 59,051 73,023 59,051 73,023 11,315 [8] 14,366 [8] 16,200                                                                                      
Derivative liabilities     $ 49,172 $ 59,520 $ 7,128 $ 8,500 [8] $ 9,800                                                                                      
[1] Assets (liabilities). For assets, increase / (decrease) to Level 3 and for liabilities, (increase) / decrease to Level 3.
[2] Amounts represent items that are accounted for under the fair value option.
[3] Net derivatives include derivative assets of $11.3 billion and derivative liabilities of $7.1 billion.
[4] Net derivatives include derivative assets of $16.2 billion and derivative liabilities of $9.8 billion.
[5] Issuances represent loan originations and mortgage servicing rights retained following securitizations or whole loan sales.
[6] Other assets is primarily comprised of net monoline exposure to a single counterparty and private equity investments.
[7] Other assets is primarily comprised of AFS marketable equity securities.
[8] For further disaggregation of derivative assets and liabilities, see Note 3 – Derivatives.