Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Gains and Losses (Details)

v2.4.0.8
Fair Value Measurements - Gains and Losses (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Total $ (252) $ 1,748 $ (335) $ 2,423
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Total (766) 1,353 (1,118) 1,693
Corporate securities and other [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in Unrealized Gains (losses) relating to liabilities still held at reporting date   2 1 1
Corporate securities, trading loans and other [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Total Realized and Unrealized Gains (losses) included in Earnings, Liabilities   6 [1] 1 [2] 6 [2]
Accrued expenses and other liabilities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Total Realized and Unrealized Gains (losses) included in Earnings, Liabilities 0 [3],[4] (7) [1],[3],[5] 1 [2],[6] 22 [6]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in Unrealized Gains (losses) relating to liabilities still held at reporting date   (16) [3]   (15) [6]
Long-term debt [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Total Realized and Unrealized Gains (losses) included in Earnings, Liabilities (52) [3],[4],[5] 92 [1],[3],[5] (119) [2],[6] 103 [2],[6]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in Unrealized Gains (losses) relating to liabilities still held at reporting date (52) [3] 92 [3] (113) [6] 78 [6]
Corporate securities, trading loans and other [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 41 [4] 35 [1] 163 [2] 123 [2]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date (20) 2 105 53
Equity Securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings (7) [4] 8 [1] 12 [2] 50 [2]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date (8) 4 2 (8)
Foreign Government Debt Securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 32 [4] (6) [1] 87 [2] 45 [2]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 32 (18) 51 63
Mortgage trading loans and ABS [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 123 [4] 10 [1] 201 [2] 172 [2]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 92 (10) 77 58
Trading Securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 189 [4] 47 [1] 463 [2] 390 [2]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 96 (22) 235 166
Derivative assets [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings (202) [4],[7] 392 [1],[8] (197) [2],[9] 685 [10],[2]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date (446) 201 (434) 5
Other taxable securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 0 [4] 3 [1] 8 [2] 3 [2]
Tax-exempt securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 2 [4] 0 [1] 3 [2] 1 [2]
Available-for-sale debt securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 2 [4] 3 [1] 11 [2] 4 [2]
Loans and leases [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 27 [11],[3],[4],[5] 49 [1],[11],[3],[5] 59 [12],[2],[6] 100 [12],[2],[6]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 37 [3] 58 [3] 64 [6] 103 [6]
Servicing Contracts [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings (249) [11],[4] 1,026 [1],[11] (539) [12],[2] 1,460 [12],[2]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date (391) 954 (864) 1,290
Loans Held-for-Sale [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 59 [3],[4],[5] 19 [1],[3],[5] 71 [2],[6] (20) [2],[6]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 9 [3] 15 [3] 14 [6] (19) [6]
Other Assets [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings (26) [13],[4] 121 [1],[14] (86) [13],[2] (327) [15],[2]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date (19) 69 (21) 84
Trading Account Profits (Losses) [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Total (232) 371 (183) 622
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Total (418) 255 (311) 235
Trading Account Profits (Losses) [Member] | Corporate securities and other [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in Unrealized Gains (losses) relating to liabilities still held at reporting date   2 1 1
Trading Account Profits (Losses) [Member] | Corporate securities, trading loans and other [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Total Realized and Unrealized Gains (losses) included in Earnings, Liabilities   6 1 6
Trading Account Profits (Losses) [Member] | Accrued expenses and other liabilities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Total Realized and Unrealized Gains (losses) included in Earnings, Liabilities      [5]    [6]    [6]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in Unrealized Gains (losses) relating to liabilities still held at reporting date   0 [3]      [6]
Trading Account Profits (Losses) [Member] | Long-term debt [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Total Realized and Unrealized Gains (losses) included in Earnings, Liabilities (11) [5] 58 [5] (64) [6] 80 [6]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in Unrealized Gains (losses) relating to liabilities still held at reporting date (11) [3] 58 [3] (50) [6] 55 [6]
Trading Account Profits (Losses) [Member] | Corporate securities, trading loans and other [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 41 35 163 123
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date (20) 2 105 53
Trading Account Profits (Losses) [Member] | Equity Securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings (7) 8 12 50
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date (8) 4 2 (8)
Trading Account Profits (Losses) [Member] | Foreign Government Debt Securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 32 (6) 87 45
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 32 (18) 51 63
Trading Account Profits (Losses) [Member] | Mortgage trading loans and ABS [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 123 10 201 172
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 92 (10) 77 58
Trading Account Profits (Losses) [Member] | Trading Securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 189 47 463 390
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 96 (22) 235 166
Trading Account Profits (Losses) [Member] | Derivative assets [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings (427) 260 (595) 146
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date (520) 217 (509) 13
Trading Account Profits (Losses) [Member] | Other taxable securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings   0 0 0
Trading Account Profits (Losses) [Member] | Loans and leases [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date    [3]    [3]    [6]    [6]
Trading Account Profits (Losses) [Member] | Servicing Contracts [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 17   12  
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 17    12   
Trading Account Profits (Losses) [Member] | Loans Held-for-Sale [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date    [3]    [3]    [6]    [6]
Trading Account Profits (Losses) [Member] | Other Assets [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date            
Mortgage Banking Income (Loss) [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Total (70) [16] 1,276 [16] (218) [17] 2,147 [16]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Total (357) [16] 1,050 [16] (852) [17] 1,417 [17]
Mortgage Banking Income (Loss) [Member] | Corporate securities and other [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in Unrealized Gains (losses) relating to liabilities still held at reporting date   0 [16] 0 [17] 0 [17]
Mortgage Banking Income (Loss) [Member] | Corporate securities, trading loans and other [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Total Realized and Unrealized Gains (losses) included in Earnings, Liabilities   0 [16] 0 [17] 0 [17]
Mortgage Banking Income (Loss) [Member] | Accrued expenses and other liabilities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Total Realized and Unrealized Gains (losses) included in Earnings, Liabilities   (7) [16],[5]    [17],[6] 22 [17],[6]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in Unrealized Gains (losses) relating to liabilities still held at reporting date   (16) [16],[3]   (15) [17],[6]
Mortgage Banking Income (Loss) [Member] | Long-term debt [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in Unrealized Gains (losses) relating to liabilities still held at reporting date    [16],[3]    [16],[3]    [17],[6]    [17],[6]
Mortgage Banking Income (Loss) [Member] | Corporate securities, trading loans and other [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 0 [16]    [16] 0 [17] 0 [17]
Mortgage Banking Income (Loss) [Member] | Equity Securities [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 0 [16]    [16] 0 [17] 0 [17]
Mortgage Banking Income (Loss) [Member] | Foreign Government Debt Securities [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 0 [16]    [16] 0 [17] 0 [17]
Mortgage Banking Income (Loss) [Member] | Mortgage trading loans and ABS [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 0 [16]    [16] 0 [17] 0 [17]
Mortgage Banking Income (Loss) [Member] | Trading Securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 0 [16] 0 [16] 0 [17] 0 [17]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 0 [16] 0 [16] 0 [17] 0 [17]
Mortgage Banking Income (Loss) [Member] | Derivative assets [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 225 [16] 132 [16] 398 [17] 539 [17]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 74 [16] (16) [16] 75 [17] (8) [17]
Mortgage Banking Income (Loss) [Member] | Other taxable securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings   0 [16] 0 [17] 0 [17]
Mortgage Banking Income (Loss) [Member] | Loans and leases [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 0 [16],[3]    [16],[3] 0 [17],[6] 0 [17],[6]
Mortgage Banking Income (Loss) [Member] | Servicing Contracts [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings (266) [16] 1,026 [16] (551) [17] 1,460 [16]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date (408) [16] 954 [16] (876) [17] 1,290 [17]
Mortgage Banking Income (Loss) [Member] | Loans Held-for-Sale [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 0 [16],[5] (2) [16],[5] 0 [17],[6] 2 [17],[6]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 0 [16],[3] 1 [16],[3] 0 [17],[6] 11 [17],[6]
Mortgage Banking Income (Loss) [Member] | Other Assets [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings (29) [16] 127 [16] (65) [17] 124 [16]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date (23) [16] 127 [16] (51) [17] 139 [17]
Other Income (loss) [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Total 50 [18] 101 [18] 66 [19] (346) [19]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Total 9 [20] 48 [20] 45 [21] 41 [21]
Other Income (loss) [Member] | Corporate securities and other [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in Unrealized Gains (losses) relating to liabilities still held at reporting date   0 [20] 0 [21] 0 [21]
Other Income (loss) [Member] | Corporate securities, trading loans and other [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Total Realized and Unrealized Gains (losses) included in Earnings, Liabilities   0 [18] 0 [19] 0 [19]
Other Income (loss) [Member] | Accrued expenses and other liabilities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Total Realized and Unrealized Gains (losses) included in Earnings, Liabilities   0 [18],[5] 1 [19],[6] 0 [19],[6]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in Unrealized Gains (losses) relating to liabilities still held at reporting date   0 [20],[3]      [19],[6]
Other Income (loss) [Member] | Long-term debt [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Total Realized and Unrealized Gains (losses) included in Earnings, Liabilities (41) [18],[5] 34 [18],[5] (55) [19],[6] 23 [19],[6]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in Unrealized Gains (losses) relating to liabilities still held at reporting date (41) [20],[3] 34 [20],[3] (63) [19],[6] 23 [19],[6]
Other Income (loss) [Member] | Corporate securities, trading loans and other [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date    [20]    [20]    [21]    [21]
Other Income (loss) [Member] | Equity Securities [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date    [20]    [20]    [21]    [21]
Other Income (loss) [Member] | Foreign Government Debt Securities [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date    [20]    [20]    [21]    [21]
Other Income (loss) [Member] | Mortgage trading loans and ABS [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date    [20]    [20]    [21]    [21]
Other Income (loss) [Member] | Trading Securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 0 [18] 0 [18] 0 [19] 0 [19]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 0 [20] 0 [20] 0 [21] 0 [21]
Other Income (loss) [Member] | Derivative assets [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date    [20]    [20]    [21]    [21]
Other Income (loss) [Member] | Other taxable securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings   3 [18] 8 [19] 3 [19]
Other Income (loss) [Member] | Tax-exempt securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 2 [18]   3 [19] 1 [19]
Other Income (loss) [Member] | Available-for-sale debt securities [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings     11 [19] 4 [19]
Other Income (loss) [Member] | Loans and leases [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 27 [18],[5] 49 [18],[5] 59 [19],[6] 100 [19],[6]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 37 [20],[3] 58 [20],[3] 64 [19],[6] 103 [19],[6]
Other Income (loss) [Member] | Servicing Contracts [Member]
       
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 0 [20]    [20] 0 [21] 0 [21]
Other Income (loss) [Member] | Loans Held-for-Sale [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 59 [18],[5] 21 [18],[5] 71 [19],[6] (22) [19],[6]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 9 [20],[3] 14 [20],[3] 14 [19],[6] (30) [19],[6]
Other Income (loss) [Member] | Other Assets [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 3 [18] (6) [18] (21) [19] (451) [19]
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date 4 [20] (58) [20] 30 [21] (55) [21]
Equity investments [Member] | Other Assets [Member]
       
Level 3 Total Realized and Unrealized Gains (Losses) Related to Assets Included in Earnings        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings 2 34 (21) 36
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets Still Held at Reporting Date        
Change in unrealized Gains (losses) relating to assets still held at reporting date $ 3 $ (18) $ 30 $ (18)
[1] Assets (liabilities). For assets, increase (decrease) to Level 3 and for liabilities, (increase) decrease to Level 3.
[2] (1) Assets (liabilities). For assets, increase (decrease) to Level 3 and for liabilities, (increase) decrease to Level 3.
[3] Amounts represent instruments that are accounted for under the fair value option.
[4] Assets (liabilities). For assets, increase (decrease) to Level 3 and for liabilities, (increase) decrease to Level 3.
[5] Amounts represent instruments that are accounted for under the fair value option.Level 3 – Total Realized and Unrealized Gains (Losses) Included in Earnings Six Months Ended June 30, 2014(Dollars in millions)TradingAccountProfits(Losses) MortgageBankingIncome(Loss) (1) Other (2) TotalTrading account assets: Corporate securities, trading loans and other$163 $— $— $163Equity securities12 — — 12Non-U.S. sovereign debt87 — — 87Mortgage trading loans and ABS201 — — 201Total trading account assets463 — — 463Net derivative assets(595) 398 — (197)AFS debt securities: Other taxable securities— — 8 8Tax-exempt securities— — 3 3Total AFS debt securities— — 11 11Loans and leases (3)— — 59 59Mortgage servicing rights12 (551) — (539)Loans held-for-sale (3)— — 71 71Other assets— (65) (21) (86)Trading account liabilities – Corporate securities and other1 — — 1Accrued expenses and other liabilities (3)— — 1 1Long-term debt (3)(64) — (55) (119)Total$(183) $(218) $66 $(335) Six Months Ended June 30, 2013Trading account assets: Corporate securities, trading loans and other$123 $— $— $123Equity securities50 — — 50Non-U.S. sovereign debt45 — — 45Mortgage trading loans and ABS172 — — 172Total trading account assets390 — — 390Net derivative assets146 539 — 685AFS debt securities: Other taxable securities— — 3 3Tax-exempt securities— — 1 1Total AFS debt securities— — 4 4Loans and leases (3)— — 100 100Mortgage servicing rights— 1,460 — 1,460Loans held-for-sale (3)— 2 (22) (20)Other assets— 124 (451) (327)Trading account liabilities – Corporate securities and other6 — — 6Accrued expenses and other liabilities (3)— 22 — 22Long-term debt (3)80 — 23 103Total$622 $2,147 $(346) $2,423
[6] (3) Amounts represent instruments that are accounted for under the fair value option.
[7] Net derivatives include derivative assets of $7.1 billion and derivative liabilities of $7.9 billion
[8] Net derivatives include derivative assets of $7.7 billion and derivative liabilities of $6.5 billion.
[9] (2) Net derivatives include derivative assets of $7.1 billion and derivative liabilities of $7.9 billion.
[10] (2) Net derivatives include derivative assets of $7.7 billion and derivative liabilities of $6.5 billion.
[11] Issuances represent loan originations and mortgage servicing rights retained following securitizations or whole-loan sales.
[12] (4) Issuances represent loan originations and mortgage servicing rights retained following securitizations or whole-loan sales.
[13] (5) Other assets is primarily comprised of private equity investments and certain long-term fixed-rate margin loans that are accounted for under the fair value option.
[14] Other assets is primarily comprised of net monoline exposure to a single counterparty and private equity investments.
[15] (5) Other assets is primarily comprised of net monoline exposure to a single counterparty and private equity investments.
[16] Mortgage banking income (loss) does not reflect the impact of Level 1 and Level 2 hedges on MSRs.
[17] (1) Mortgage banking income (loss) does not reflect the impact of Level 1 and Level 2 hedges on MSRs.
[18] Amounts included are primarily recorded in other income (loss). Equity investment gains of $2 million and $34 million recorded on other assets were also included for the three months ended June 30, 2014 and 2013.
[19] (2) Amounts included are primarily recorded in other income (loss). Equity investment losses of $21 million and gains of $36 million recorded on other assets were also included for the six months ended June 30, 2014 and 2013.
[20] Amounts included are primarily recorded in other income (loss). Equity investment gains of $3 million and losses of $18 million recorded on other assets were also included for the three months ended June 30, 2014 and 2013.
[21] (2) Amounts included are primarily recorded in other income (loss). Equity investment gains of $30 million and losses of $18 million recorded on other assets were also included for the six months ended June 30, 2014 and 2013.