Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Reconciliation (Details)

v3.10.0.1
Fair Value Measurements - Reconciliation (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]          
Balance, beginning $ (1,588) $ (1,803) $ (1,714) $ (1,313)  
Total Realized/Unrealized Gains/(Losses) (53) (252) 203 (1,098)  
Gains (Losses) in OCI 0 0 0 0  
Purchases 23 150 371 558  
Sales (66) (367) (919) (843)  
Issuances 0 0 0 0  
Settlements 111 278 488 722  
Gross Transfers into Level 3 20 7 87 36  
Gross Transfers out of Level 3 983 (36) 914 (85)  
Balance, ending (570) (2,023) (570) (2,023)  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held (51) (283) (138) (561)  
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]          
Derivative assets, gross 337,300   337,300   $ 351,600
Derivative liabilities, gross 324,100   324,100   346,000
Federal funds purchased and securities loaned or sold under agreements to repurchase          
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning   (135)   (359)  
Total Realized/Unrealized Gains/(Losses)   0   (5)  
Gains (Losses) in OCI   0   0  
Purchases   0   0  
Sales   0   0  
Issuances   0   (12)  
Settlements   135   171  
Gross Transfers into Level 3   0   (58)  
Gross Transfers out of Level 3   0   263  
Balance, ending   0   0  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held   0   (5)  
Corporate securities, trading loans and other          
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning (35) (22) (24) (27)  
Total Realized/Unrealized Gains/(Losses) 9 1 11 13  
Gains (Losses) in OCI 0 0 0 0  
Purchases 9 0 9 4  
Sales 0 (3) (11) (13)  
Issuances 0 (1) (2) (2)  
Settlements 0 0 0 0  
Gross Transfers into Level 3 0 0 0 0  
Gross Transfers out of Level 3 0 0 0 0  
Balance, ending (17) (25) (17) (25)  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held (6) 0 (7) (1)  
Accrued expenses and other liabilities          
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning   (9) (8) (9)  
Total Realized/Unrealized Gains/(Losses)   0 0 0  
Gains (Losses) in OCI   0 0 0  
Purchases   0 0 0  
Sales   0 0 0  
Issuances   0 0 0  
Settlements   0 8 0  
Gross Transfers into Level 3   0 0 0  
Gross Transfers out of Level 3   0 0 0  
Balance, ending 0 (9) 0 (9)  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held   0 0 0  
Long-term debt          
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning (1,225) (1,646) (1,863) (1,514)  
Total Realized/Unrealized Gains/(Losses) 11 (87) 97 (160)  
Gains (Losses) in OCI (1) (7) 2 (18)  
Purchases 0 63 9 81  
Sales 0 0 0 0  
Issuances (11) (129) (131) (279)  
Settlements 106 115 429 398  
Gross Transfers into Level 3 (106) (244) (253) (530)  
Gross Transfers out of Level 3 303 45 787 132  
Balance, ending (923) (1,890) (923) (1,890)  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held 13 (87) 87 (158)  
Level 3 | Recurring          
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]          
Balance, beginning     (1,714)    
Balance, ending (570)   (570)    
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]          
Derivative assets, gross 4,380 3,900 4,380 3,900 4,067
Derivative liabilities, gross 4,950 5,900 4,950 5,900 $ 5,781
Corporate securities, trading loans and other          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning 1,638 1,777 1,864 2,777  
Total Realized/Unrealized Gains/(Losses) 14 77 (14) 225  
Gains (Losses) in OCI 0 0 (1) 0  
Purchases 54 35 328 353  
Sales (87) (79) (298) (679)  
Issuances 0 5 0 5  
Settlements (175) (208) (388) (443)  
Gross Transfers into Level 3 269 288 517 506  
Gross Transfers out of Level 3 (179) (153) (474) (1,002)  
Balance, ending 1,534 1,742 1,534 1,742  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held (14) 35 (88) 72  
Equity securities          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning 228 229 235 281  
Total Realized/Unrealized Gains/(Losses) 8 8 17 23  
Gains (Losses) in OCI 0 0 0 0  
Purchases 21 3 29 45  
Sales 0 (3) (11) (67)  
Issuances 0 0 0 0  
Settlements 0 0 (4) (10)  
Gross Transfers into Level 3 43 17 73 119  
Gross Transfers out of Level 3 (10) (10) (49) (147)  
Balance, ending 290 244 290 244  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held 8 10 17 11  
Non-U.S. sovereign debt          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning 368 506 556 510  
Total Realized/Unrealized Gains/(Losses) 10 33 39 64  
Gains (Losses) in OCI (13) 18 (55) 12  
Purchases 0 0 7 26  
Sales 0 0 (50) (59)  
Issuances 0 0 0 0  
Settlements 0 (5) (8) (73)  
Gross Transfers into Level 3 109 0 117 72  
Gross Transfers out of Level 3 (5) 0 (137) 0  
Balance, ending 469 552 469 552  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held 11 33 40 60  
Mortgage trading loans, ABS and other MBS          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning 1,523 1,232 1,498 1,211  
Total Realized/Unrealized Gains/(Losses) 16 10 157 195  
Gains (Losses) in OCI (1) (1) 2 (2)  
Purchases 75 150 392 747  
Sales (184) (157) (760) (846)  
Issuances 0 0 0 0  
Settlements (29) (46) (136) (169)  
Gross Transfers into Level 3 191 83 541 187  
Gross Transfers out of Level 3 (112) (19) (215) (71)  
Balance, ending 1,479 1,252 1,479 1,252  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held 8 (2) 92 107  
Trading Securities          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning 3,757 3,744 4,153 4,779  
Total Realized/Unrealized Gains/(Losses) 48 128 199 507  
Gains (Losses) in OCI (14) 17 (54) 10  
Purchases 150 188 756 1,171  
Sales (271) (239) (1,119) (1,651)  
Issuances 0 5 0 5  
Settlements (204) (259) (536) (695)  
Gross Transfers into Level 3 612 388 1,248 884  
Gross Transfers out of Level 3 (306) (182) (875) (1,220)  
Balance, ending 3,772 3,790 3,772 3,790  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held 13 76 61 250  
Non-agency residential MBS          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning 453   0    
Total Realized/Unrealized Gains/(Losses) 31   39    
Gains (Losses) in OCI (28)   (42)    
Purchases 0   0    
Sales (72)   (72)    
Issuances 0   0    
Settlements 0   0    
Gross Transfers into Level 3 235   694    
Gross Transfers out of Level 3 (75)   (75)    
Balance, ending 544   544    
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held 0   0    
Non-U.S. securities          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning 3 139 25 229  
Total Realized/Unrealized Gains/(Losses) 0 1 0 2  
Gains (Losses) in OCI 0 4 (1) 16  
Purchases 0 7 0 49  
Sales 0 0 (10) 0  
Issuances 0 0 0 0  
Settlements 0 (115) (14) (260)  
Gross Transfers into Level 3 0 0 3 0  
Gross Transfers out of Level 3 0 0 0 0  
Balance, ending 3 36 3 36  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held 0 0 0 0  
Other taxable securities          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning 99 483 509 594  
Total Realized/Unrealized Gains/(Losses) (1) 0 1 3  
Gains (Losses) in OCI (3) 1 (5) 6  
Purchases 0 0 0 5  
Sales (22) 0 (22) 0  
Issuances 0 0 0 0  
Settlements 0 (1) (10) (31)  
Gross Transfers into Level 3 0 0 60 0  
Gross Transfers out of Level 3 (66) 0 (526) (94)  
Balance, ending 7 483 7 483  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held 0 0 0 0  
Tax-exempt securities          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning 1 518 469 542  
Total Realized/Unrealized Gains/(Losses) 0 0 0 0  
Gains (Losses) in OCI 0 1 0 1  
Purchases 0 0 0 0  
Sales 0 0 0 (56)  
Issuances 0 0 0 0  
Settlements 0 (7) 0 (10)  
Gross Transfers into Level 3 0 0 1 35  
Gross Transfers out of Level 3 0 (45) (469) (45)  
Balance, ending 1 467 1 467  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held 0 0 0 0  
Available-for-sale Securities          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning 556 1,140 1,003 1,365  
Total Realized/Unrealized Gains/(Losses) 30 1 40 5  
Gains (Losses) in OCI (31) 6 (48) 23  
Purchases 0 7 0 54  
Sales (94) 0 (104) (56)  
Issuances 0 0 0 0  
Settlements 0 (123) (24) (301)  
Gross Transfers into Level 3 235 0 758 35  
Gross Transfers out of Level 3 (141) (45) (1,070) (139)  
Balance, ending 555 986 555 986  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held 0 0 0 0  
Other debt securities carried at fair value – Non-agency residential MBS          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning 287 23 0 25  
Total Realized/Unrealized Gains/(Losses) (23) 0 (27) (1)  
Gains (Losses) in OCI 0 0 0 0  
Purchases 0 0 0 0  
Sales 0 0 (7) 0  
Issuances 0 0 0 0  
Settlements 0 (1) 0 (2)  
Gross Transfers into Level 3 60 0 358 0  
Gross Transfers out of Level 3 (28) 0 (28) 0  
Balance, ending 296 22 296 22  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held (10) 0 (5) 0  
Loans and leases          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning 493 667 571 720  
Total Realized/Unrealized Gains/(Losses) 0 2 (20) 20  
Gains (Losses) in OCI 0 0 0 0  
Purchases 0 2 0 2  
Sales (62) (24) (71) (24)  
Issuances 0 0 0 0  
Settlements (21) (29) (70) (93)  
Gross Transfers into Level 3 0 0 0 0  
Gross Transfers out of Level 3 0 0 0 (7)  
Balance, ending 410 618 410 618  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held (1) 2 (17) 18  
Loans Held-for-Sale          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning 577 766 690 656  
Total Realized/Unrealized Gains/(Losses) 12 38 24 109  
Gains (Losses) in OCI (4) 10 (31) 7  
Purchases 39 0 51 2  
Sales 0 (4) 0 (159)  
Issuances 0 0 0 0  
Settlements (82) (93) (160) (281)  
Gross Transfers into Level 3 12 58 12 473  
Gross Transfers out of Level 3 (28) 0 (60) (32)  
Balance, ending 526 775 526 775  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held 9 27 18 60  
Other assets          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Balance, beginning 3,184 2,795 2,425 2,986  
Total Realized/Unrealized Gains/(Losses) 121 124 389 93  
Gains (Losses) in OCI 0 (43) 0 (31)  
Purchases 0 0 2 2  
Sales (22) (80) (68) (74)  
Issuances 31 69 83 207  
Settlements (174) (191) (585) (573)  
Gross Transfers into Level 3 0 0 929 64  
Gross Transfers out of Level 3 0 0 (35) 0  
Balance, ending 3,140 2,674 3,140 2,674  
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held $ 55 $ 8 $ 188 $ (181)