Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Reconciliation (Details)

v2.4.0.6
Fair Value Measurements - Reconciliation (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Derivative assets $ 53,497 $ 73,023  
Reclassification of Trading Account Assets - Corporate Securities, Trading Loans and Other to Trading Account Assets - Mortgage Trading Loans and ABS 900    
Derivative assets [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 5,866 [1],[2],[3] 7,745 [1],[2] 7,863 [1],[2]
Consolidation of VIEs        [1],[2]
Gains (Losses) Included in Earnings (221) [1],[3] 5,199 [1],[2] 8,118 [1],[2]
Gross Purchases 893 [1],[3] 1,235 [1],[2]  
Gross Sales (1,012) [1],[3] (1,553) [1],[2]  
Gross Issuances      [1],[2]  
Gross Settlements (3,328) [1],[3] (7,779) [1],[2]  
Gross Transfers into Level 3 (269) [1],[3] 1,199 [1],[2] 1,067 [1],[2]
Gross Transfers out of Level 3 (461) [1],[3] (180) [1],[2] (525) [1],[2]
Balance December 31 1,468 [1],[3] 5,866 [1],[2],[3] 7,745 [1],[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (8,778) [1],[2]
Available-for-sale debt securities [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 8,012 [1] 15,873 [1] 20,346 [1]
Consolidation of VIEs   0 [1]  
Gains (Losses) Included in Earnings 13 [1] (123) [1] (1,108) [1]
Gains (Losses) Included in OCI 65 [1] 19 [1] (193) [1]
Gross Purchases 3,194 [1] 7,138 [1]  
Gross Sales (491) [1] (2,728) [1]  
Gross Issuances      [1]  
Gross Settlements (4,931) [1] (6,377) [1]  
Gross Transfers into Level 3 0 [1] 548 [1] 3,500
Gross Transfers out of Level 3 (771) [1] (6,338) [1] (445) [1]
Balance December 31 5,091 [1] 8,012 [1] 15,873 [1]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (11,946) [1]
Agency [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 37 [1] 4 [1] 0
Consolidation of VIEs     0
Gains (Losses) Included in Earnings     0
Gains (Losses) Included in OCI   0 [1] 0
Gross Purchases 0 [1] 14 [1]  
Gross Sales 0 [1] (11) [1]  
Gross Issuances      [1]  
Gross Settlements (4) [1]    [1]  
Gross Transfers into Level 3 0 [1] 34 [1] 0
Gross Transfers out of Level 3 (33) [1] (4) [1] 0
Balance December 31 0 [1] 37 [1] 4 [1]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     4
Agency-collateralized mortgage obligations [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Consolidation of VIEs      [1] 113 [1]
Gains (Losses) Included in Earnings      [1]  
Gains (Losses) Included in OCI      [1]  
Gross Purchases   56 [1]  
Gross Sales   (56) [1]  
Gross Issuances      [1]  
Gross Settlements      [1]  
Gross Transfers into Level 3      [1]  
Gross Transfers out of Level 3      [1]  
Balance December 31   0 [1]  
Non-Agency Residential MBS [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 860 [1] 1,468 [1] 7,216 [1]
Consolidation of VIEs   0 [1]    [1]
Gains (Losses) Included in Earnings (69) [1] (158) [1] (646) [1]
Gains (Losses) Included in OCI 19 [1] 41 [1] (169) [1]
Gross Purchases 0 [1] 11 [1]  
Gross Sales (306) [1] (307) [1]  
Gross Issuances      [1]  
Gross Settlements (2) [1] (568) [1]  
Gross Transfers into Level 3 0 [1] 373 [1] 1,909
Gross Transfers out of Level 3 (502) [1] 0 [1] (188) [1]
Balance December 31 0 [1] 860 [1] 1,468 [1]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (6,767) [1]
Non-Agency Commercial MBS [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 40 [1] 19 [1] 258 [1]
Consolidation of VIEs        [1]
Gains (Losses) Included in Earnings   0 [1] (13) [1]
Gains (Losses) Included in OCI   0 [1] (31) [1]
Gross Purchases 0 [1] 15 [1]  
Gross Sales (24) [1]    [1]  
Gross Issuances      [1]  
Gross Settlements (6) [1]    [1]  
Gross Transfers into Level 3 0 [1] 6 [1] 71
Gross Transfers out of Level 3   0 [1] (88) [1]
Balance December 31 10 [1] 40 [1] 19 [1]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (178) [1]
Non-U.S. Securities [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance   3 [1] 468 [1]
Consolidation of VIEs        [1]
Gains (Losses) Included in Earnings   0 [1] (125) [1]
Gains (Losses) Included in OCI   0 [1] (75) [1]
Gross Purchases      [1]  
Gross Sales      [1]  
Gross Issuances      [1]  
Gross Settlements      [1]  
Gross Transfers into Level 3   88 [1] 56
Gross Transfers out of Level 3   (91) [1]    [1]
Balance December 31   0 [1] 3 [1]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (321) [1]
Corporate Bond [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 162 [1] 137 [1] 927 [1]
Consolidation of VIEs     5,603 [1]
Gains (Losses) Included in Earnings (2) [1] (12) [1] (3) [1]
Gains (Losses) Included in OCI 0 [1] (8) [1] 47 [1]
Gross Purchases (2) [1] 304 [1]  
Gross Sales 0 [1] (17) [1]  
Gross Issuances      [1]  
Gross Settlements (39) [1]    [1]  
Gross Transfers into Level 3 0 [1] 7 [1] 32
Gross Transfers out of Level 3 (27) [1] (249) [1] (19) [1]
Balance December 31 92 [1] 162 [1] 137 [1]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (847) [1]
Other taxable securities [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 4,265 [1] 13,018 [1] 9,854 [1]
Consolidation of VIEs   0 [1]    [1]
Gains (Losses) Included in Earnings 23 [1] 26 [1] (296) [1]
Gains (Losses) Included in OCI 26 [1] 21 [1] 44 [1]
Gross Purchases 3,196 [1] 3,876 [1]  
Gross Sales (28) [1] (2,245) [1]  
Gross Issuances      [1]  
Gross Settlements (3,345) [1] (5,112) [1]  
Gross Transfers into Level 3 0 [1] 2 [1] 1,119
Gross Transfers out of Level 3 (209) [1] (5,321) [1] (43) [1]
Balance December 31 3,928 [1] 4,265 [1] 13,018 [1]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (3,263) [1]
Tax-exempt securities [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 2,648 [1] 1,224 [1] 1,623 [1]
Consolidation of VIEs     5,716 [1]
Gains (Losses) Included in Earnings 61 [1] 21 [1] (25) [1]
Gains (Losses) Included in OCI 20 [1] (35) [1] (9) [1]
Gross Purchases 0 [1] 2,862 [1]  
Gross Sales (133) [1] (92) [1]  
Gross Issuances      [1]  
Gross Settlements (1,535) [1] (697) [1]  
Gross Transfers into Level 3 0 [1] 38 [1] 316
Gross Transfers out of Level 3 0 [1] (673) [1] (107) [1]
Balance December 31 1,061 [1] 2,648 [1] 1,224 [1]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (574) [1]
Trading Account Assets [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 11,455 [1] 15,459 [1] 21,077 [1]
Consolidation of VIEs   0 [1] 292 [1]
Gains (Losses) Included in Earnings 449 [1] 1,068 [1] 1,282 [1]
Gross Purchases 5,961 [1] 8,428 [1]  
Gross Sales (6,722) [1] (11,876) [1]  
Gross Issuances      [1]  
Gross Settlements (1,733) [1] (1,945) [1]  
Gross Transfers into Level 3 1,370 [1] 1,910 [1] 3,241 [1]
Gross Transfers out of Level 3 (1,221) [1] (1,589) [1] (3,357) [1]
Balance December 31 9,559 [1] 11,455 [1] 15,459 [1]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (7,010) [1]
Corporate securities, trading loans and other [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 6,880 [1],[4],[5],[6] 7,751 [1],[4],[7] 11,080 [1],[7]
Consolidation of VIEs   0 [1],[4] 117 [1],[7]
Gains (Losses) Included in Earnings 195 [1],[5],[6] 490 [1],[4] 848 [1],[7]
Gross Purchases 2,798 [1],[5],[6] 5,683 [1],[4]  
Gross Sales (4,556) [1],[5],[6] (6,664) [1],[4]  
Gross Issuances      [1],[4]  
Gross Settlements (1,077) [1],[5],[6] (1,362) [1],[4]  
Gross Transfers into Level 3 436 [1],[5],[6] 1,695 [1],[4] 2,599
Gross Transfers out of Level 3 (950) [1],[5],[6] (713) [1],[4] (2,041) [1],[7]
Balance December 31 3,726 [1],[5],[6] 6,880 [1],[4],[5],[6] 7,751 [1],[4],[7]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (4,852) [1],[7]
Equity Securities [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 544 [1] 557 [1] 1,084 [1]
Consolidation of VIEs        [1]
Gains (Losses) Included in Earnings 31 [1] 49 [1] (81) [1]
Gross Purchases 201 [1] 335 [1]  
Gross Sales (271) [1] (362) [1]  
Gross Issuances      [1]  
Gross Settlements 27 [1] (140) [1]  
Gross Transfers into Level 3 90 [1] 132 [1] 131
Gross Transfers out of Level 3 (77) [1] (27) [1] (169) [1]
Balance December 31 545 [1] 544 [1] 557 [1]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (342) [1]
Non-U.S. sovereign debt [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 342 [1] 243 [1] 1,143 [1]
Consolidation of VIEs        [1]
Gains (Losses) Included in Earnings 8 [1] 87 [1] (138) [1]
Gross Purchases 388 [1] 188 [1]  
Gross Sales (359) [1] (137) [1]  
Gross Issuances      [1]  
Gross Settlements (5) [1] (3) [1]  
Gross Transfers into Level 3 0 [1] 8 [1] 115
Gross Transfers out of Level 3 (21) [1] (44) [1] (720) [1]
Balance December 31 353 [1] 342 [1] 243 [1]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (157) [1]
Mortgage trading loans and ABS [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 3,689 [1],[6] 6,908 [1] 7,770 [1]
Consolidation of VIEs   0 [1] 175 [1]
Gains (Losses) Included in Earnings 215 [1],[6] 442 [1] 653 [1]
Gross Purchases 2,574 [1],[6] 2,222 [1]  
Gross Sales (1,536) [1],[6] (4,713) [1]  
Gross Issuances      [1]  
Gross Settlements (678) [1],[6] (440) [1]  
Gross Transfers into Level 3 844 [1],[6] 75 [1] 396
Gross Transfers out of Level 3 (173) [1],[6] (805) [1] (427) [1]
Balance December 31 4,935 [1],[6] 3,689 [1],[6] 6,908 [1]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (1,659) [1]
Loans and leases [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 2,744 [1],[4],[5],[8] 3,321 [1],[4],[7],[8] 4,936 [1],[7]
Consolidation of VIEs   5,194 [1],[4],[8] 0 [1],[7]
Gains (Losses) Included in Earnings 334 [1],[5],[8] (55) [1],[4],[8] (89) [1],[7]
Gross Purchases 564 [1],[5],[8] 21 [1],[4],[8]  
Gross Sales (1,520) [1],[5],[8] (2,644) [1],[4],[8]  
Gross Issuances 0 [1],[5],[8] 3,118 [1],[4],[8]  
Gross Settlements (274) [1],[5],[8] (1,830) [1],[4],[8]  
Gross Transfers into Level 3 450 [1],[5],[8] 5 [1],[4],[8] 0
Gross Transfers out of Level 3 (11) [1],[5],[8] (4,386) [1],[4],[8] 0 [1],[7]
Balance December 31 2,287 [1],[5],[8] 2,744 [1],[4],[5],[8] 3,321 [1],[4],[7],[8]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (1,526) [1],[7]
Mortgage servicing rights [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 7,378 [1],[8] 14,900 [1],[8] 19,465 [1]
Consolidation of VIEs        [1]
Gains (Losses) Included in Earnings (430) [1],[8] (5,661) [1],[8] (4,321) [1]
Gross Purchases      [1],[8]  
Gross Sales (122) [1],[8] (896) [1],[8]  
Gross Issuances 374 [1],[8] 1,656 [1],[8]  
Gross Settlements (1,484) [1],[8] (2,621) [1],[8]  
Gross Transfers into Level 3     0
Gross Transfers out of Level 3        [1]
Balance December 31 5,716 [1],[8] 7,378 [1],[8] 14,900 [1],[8]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (244) [1]
Loans held-for-sale [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 3,387 [1],[4],[5] 4,140 [1],[4],[7] 6,942 [1],[7]
Consolidation of VIEs        [1],[7]
Gains (Losses) Included in Earnings 352 [1],[5] 36 [1],[4] 482 [1],[7]
Gross Purchases 794 [1],[5] 157 [1],[4]  
Gross Sales (834) [1],[5] (483) [1],[4]  
Gross Issuances      [1],[4]  
Gross Settlements (414) [1],[5] (961) [1],[4]  
Gross Transfers into Level 3 80 [1],[5] 565 [1],[4] 624
Gross Transfers out of Level 3 (632) [1],[5] (67) [1],[4] (194) [1],[7]
Balance December 31 2,733 [1],[5] 3,387 [1],[4],[5] 4,140 [1],[4],[7]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (3,714) [1],[7]
Other assets [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance 4,235 [1],[9] 6,922 [1],[9] 7,821 [1],[10]
Consolidation of VIEs        [1],[10]
Gains (Losses) Included in Earnings (54) [1],[9] 140 [1],[9] 1,946 [1],[10]
Gross Purchases 109 [1],[9] 1,932 [1],[9]  
Gross Sales (1,039) [1],[9] (2,391) [1],[9]  
Gross Issuances 270 [1],[9]    [1],[9]  
Gross Settlements (381) [1],[9] (768) [1],[9]  
Gross Transfers into Level 3 0 [1],[9] 375 [1],[9] 0
Gross Transfers out of Level 3 (11) [1],[9] (1,975) [1],[9] (299) [1],[10]
Balance December 31 3,129 [1],[9] 4,235 [1],[9] 6,922 [1],[9]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements     (2,612) [1],[10]
Fair Value, Measurements, Recurring [Member]
      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Derivative assets 53,497 [11] 73,023 [11]  
Derivative liabilities included in net derivatives 46,016 [11] 59,520 [11]  
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Derivative assets 8,073 [11] 14,366 [11] 18,800
Derivative liabilities included in net derivatives 6,605 [11] 8,500 [11] 11,000
Corporate securities, trading loans and other [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance   (7) [1]  
Gains (Losses) Included in Earnings   4 [1]  
Gross Purchases   133 [1]  
Gross Sales   (189) [1]  
Gross Transfers into Level 3   (65) [1]  
Gross Transfers out of Level 3   10 [1]  
Balance December 31   (114) [1]  
Trading Liabilities [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance     (396) [1]
Gains (Losses) Included in Earnings     18 [1]
Purchases, Issuances and Settlements     (6) [1]
Gross Transfers into Level 3     52
Gross Transfers out of Level 3     (429) [1]
Balance December 31     (7) [1]
Trading Liabilities [Member] | Corporate securities, trading loans and other [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance (114) [1]   (10) [1]
Gains (Losses) Included in Earnings 4 [1]   (5) [1]
Gross Purchases 116 [1]    
Gross Sales (136) [1]    
Gross Settlements 80 [1]    
Purchases, Issuances and Settlements     11 [1]
Gross Transfers into Level 3 (68) [1]   52
Gross Transfers out of Level 3 (54) [1]   (49) [1]
Balance December 31 (64) [1]    
Trading Liabilities [Member] | Non-U.S. sovereign debt [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Beginning Balance     (386) [1]
Gains (Losses) Included in Earnings     23 [1]
Purchases, Issuances and Settlements     (17) [1]
Gross Transfers into Level 3     0
Gross Transfers out of Level 3     (380) [1]
Balance December 31     0 [1]
Short-term Debt [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Consolidation of VIEs        [1],[7]
Beginning Balance 0 [1],[4] (706) [1],[4],[7] (707) [1],[7]
Gains (Losses) Included in Earnings 0 [1],[5] (30) [1],[4] (95) [1],[7]
Gross Purchases      [1],[4]  
Gross Sales   0 [1],[4]  
Gross Issuances (232) [1],[5]    [1],[4]  
Gross Settlements 232 [1],[5] 86 [1],[4]  
Purchases, Issuances and Settlements     96 [1],[7]
Gross Transfers into Level 3     0
Gross Transfers out of Level 3 0 [1],[5] 650 [1],[4]  
Balance December 31   0 [1],[4] (706) [1],[4],[7]
Accrued Liabilities [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Consolidation of VIEs        [1],[7]
Beginning Balance (14) [1],[4] (828) [1],[4],[7] (891) [1],[7]
Gains (Losses) Included in Earnings (4) [1],[5] 61 [1],[4] 146 [1],[7]
Gross Purchases 8 [1],[5]    [1],[4]  
Gross Sales 0 [1],[5] (2) [1],[4]  
Gross Issuances (9) [1],[5] (9) [1],[4]  
Gross Settlements 0 [1],[5] 3 [1],[4]  
Purchases, Issuances and Settlements     (83) [1],[7]
Gross Transfers into Level 3     0
Gross Transfers out of Level 3 (4) [1],[5] 761 [1],[4]  
Balance December 31 (15) [1],[5] (14) [1],[4] (828) [1],[4],[7]
Long-term Debt [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Consolidation of VIEs        [1],[7]
Beginning Balance (2,943) [1],[4] (2,986) [1],[4],[7] (4,660) [1],[7]
Gains (Losses) Included in Earnings (307) [1],[5] (188) [1],[4] 697 [1],[7]
Gross Purchases 290 [1],[5] 520 [1],[4]  
Gross Sales (33) [1],[5] (72) [1],[4]  
Gross Issuances (259) [1],[5] (520) [1],[4]  
Gross Settlements 1,239 [1],[5] 838 [1],[4]  
Purchases, Issuances and Settlements     1,074 [1],[7]
Gross Transfers into Level 3 (2,040) [1],[5] (2,111) [1],[4] (1,881) [1],[4]
Gross Transfers out of Level 3 (1,752) [1],[5] 1,576 [1],[4] (1,784) [1],[7]
Balance December 31 (2,301) [1],[5] (2,943) [1],[4] (2,986) [1],[4],[7]
Reclass [Member] | Trading Account Assets [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Balance December 31     15,525 [1]
Reclass [Member] | Equity Securities [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Balance December 31     623 [1]
Reclass [Member] | Other assets [Member]
      
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs Level(3)      
Balance December 31     $ 6,856 [1],[10]
[1] Assets (liabilities). For assets, increase / (decrease) to Level 3 and for liabilities, (increase) / decrease to Level 3.
[2] Amounts represent instruments that are accounted for under the fair value option
[3] Amounts represent instruments that are accounted for under the fair value option.
[4] Net derivatives include derivative assets of $14.4 billion and derivative liabilities of $8.5 billion.
[5] During 2012, approximately $900 million was reclassified from Trading account assets - Corporate securities, trading loans and other to Trading account assets - Mortgage trading loans and ABS. In the table above, this reclassification is presented as a sale of Trading account assets - Corporate securities, trading loans and other and as a purchase of Trading account assets - Mortgage trading loans and ABS.
[6] Net derivatives include derivative assets of $8.1 billion and derivative liabilities of $6.6 billion.
[7] Net derivatives include derivative assets of $18.8 billion and derivative liabilities of $11.0 billion.
[8] Issuances represent loan originations and mortgage servicing rights retained following securitizations or whole loan sales.
[9] Other assets is primarily comprised of net monoline exposure to a single counterparty and private equity investments.
[10] Other assets is primarily comprised of AFS marketable equity securities.
[11] For further disaggregation of derivative assets and liabilities, see Note 3 – Derivatives.