v3.25.4
FAIR VALUE MEASUREMENT - Level 3 Roll Forward (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Trading account assets and liabilities    
Fair value, Derivative assets (liabilities) measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period, asset (liability), net $ (1,325) $ (2,218)
Net realized/unrealized gains (losses) included in principal transactions 480 408
Net realized/unrealized gains (losses) included in locations Other 0 0
Transfers into Level 3 3 266
Transfers out of Level 3 1,001 818
Purchases (3,982) (955)
Issuances 10 19
Sales (357) (375)
Settlements 901 712
Balance at end of period, asset (liability), net (3,269) (1,325)
Unrealized gains (losses) still held (1,027) (721)
Trading account assets and liabilities | Interest rate contracts    
Fair value, Derivative assets (liabilities) measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period, asset (liability), net (330) (1,085)
Net realized/unrealized gains (losses) included in principal transactions 306 (875)
Net realized/unrealized gains (losses) included in locations Other 0 0
Transfers into Level 3 108 275
Transfers out of Level 3 31 462
Purchases (150) 94
Issuances 10 19
Sales (91) (35)
Settlements 136 815
Balance at end of period, asset (liability), net 20 (330)
Unrealized gains (losses) still held 362 (381)
Trading account assets and liabilities | Foreign exchange contracts    
Fair value, Derivative assets (liabilities) measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period, asset (liability), net 185 295
Net realized/unrealized gains (losses) included in principal transactions 12 600
Net realized/unrealized gains (losses) included in locations Other 0 0
Transfers into Level 3 68 100
Transfers out of Level 3 (152) (485)
Purchases 32 13
Issuances 0 0
Sales (190) (197)
Settlements (5) (141)
Balance at end of period, asset (liability), net (50) 185
Unrealized gains (losses) still held 36 (474)
Trading account assets and liabilities | Equity contracts    
Fair value, Derivative assets (liabilities) measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period, asset (liability), net (1,688) (1,634)
Net realized/unrealized gains (losses) included in principal transactions (149) 68
Net realized/unrealized gains (losses) included in locations Other 0 0
Transfers into Level 3 73 (135)
Transfers out of Level 3 777 1,022
Purchases (2,780) (954)
Issuances 0 0
Sales (66) (77)
Settlements 869 22
Balance at end of period, asset (liability), net (2,964) (1,688)
Unrealized gains (losses) still held (1,530) (459)
Trading account assets and liabilities | Commodity contracts    
Fair value, Derivative assets (liabilities) measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period, asset (liability), net 404 279
Net realized/unrealized gains (losses) included in principal transactions 418 460
Net realized/unrealized gains (losses) included in locations Other 0 0
Transfers into Level 3 (250) 46
Transfers out of Level 3 188 (210)
Purchases (308) (104)
Issuances 0 0
Sales (10) (66)
Settlements (298) (1)
Balance at end of period, asset (liability), net 144 404
Unrealized gains (losses) still held 219 512
Trading account assets and liabilities | Credit derivatives    
Fair value, Derivative assets (liabilities) measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period, asset (liability), net 104 (73)
Net realized/unrealized gains (losses) included in principal transactions (107) 155
Net realized/unrealized gains (losses) included in locations Other 0 0
Transfers into Level 3 4 (20)
Transfers out of Level 3 157 29
Purchases (776) (4)
Issuances 0 0
Sales 0 0
Settlements 199 17
Balance at end of period, asset (liability), net (419) 104
Unrealized gains (losses) still held (114) 81
Deposits    
Fair value, liabilities measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 39 29
Net realized/unrealized gains (losses) included in principal transactions 0 1
Net realized/unrealized gains (losses) included in locations Other (34) 4
Transfers into Level 3 10 51
Transfers out of Level 3 0 (40)
Purchases 0 0
Issuances 259 39
Sales 0 0
Settlements (103) (35)
Balance at end of period 239 39
Unrealized gains (losses) still held (141) 1
Securities loaned and sold under agreements to repurchase    
Fair value, liabilities measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 390 390
Net realized/unrealized gains (losses) included in principal transactions (11) 5
Net realized/unrealized gains (losses) included in locations Other 0 0
Transfers into Level 3 0 0
Transfers out of Level 3 (100) 0
Purchases 1,486 976
Issuances 0 0
Sales 0 0
Settlements (835) (971)
Balance at end of period 952 390
Unrealized gains (losses) still held 0 5
Trading account liabilities | Securities sold, not yet purchased    
Fair value, liabilities measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 28 35
Net realized/unrealized gains (losses) included in principal transactions 19 (14)
Net realized/unrealized gains (losses) included in locations Other 0 0
Transfers into Level 3 27 35
Transfers out of Level 3 (39) (30)
Purchases 116 116
Issuances 0 0
Sales 0 0
Settlements (68) (142)
Balance at end of period 45 28
Unrealized gains (losses) still held 45 5
Trading account liabilities | Other trading liabilities    
Fair value, liabilities measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 0 0
Net realized/unrealized gains (losses) included in principal transactions 1 0
Net realized/unrealized gains (losses) included in locations Other 0 0
Transfers into Level 3 0 0
Transfers out of Level 3 (2) 0
Purchases 25 0
Issuances 0 0
Sales 0 0
Settlements (22) 0
Balance at end of period 0 0
Unrealized gains (losses) still held 0 0
Short-term borrowings    
Fair value, liabilities measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 297 481
Net realized/unrealized gains (losses) included in principal transactions 51 (94)
Net realized/unrealized gains (losses) included in locations Other 0 0
Transfers into Level 3 78 88
Transfers out of Level 3 (144) (560)
Purchases 13 1
Issuances 928 479
Sales 0 0
Settlements (829) (286)
Balance at end of period 292 297
Unrealized gains (losses) still held (92) (37)
Long-term debt    
Fair value, liabilities measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 21,100 38,380
Net realized/unrealized gains (losses) included in principal transactions (1,156) 1,757
Net realized/unrealized gains (losses) included in locations Other 0 0
Transfers into Level 3 3,120 4,626
Transfers out of Level 3 (4,158) (22,923)
Purchases 0 0
Issuances 5,064 5,995
Sales 0 0
Settlements (2,323) (3,221)
Balance at end of period 23,959 21,100
Unrealized gains (losses) still held (866) 1,731
Other financial liabilities measured on a recurring basis    
Fair value, liabilities measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 0 6
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in locations Other 0 0
Transfers into Level 3 15 0
Transfers out of Level 3 (1) 0
Purchases 50 0
Issuances 1 5
Sales 0 0
Settlements (65) (11)
Balance at end of period 0 0
Unrealized gains (losses) still held 0 0
Securities borrowed and purchased under agreements to resell    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 128 139
Net realized/unrealized gains (losses) included in principal transactions 46 (4)
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 0 0
Transfers out of Level 3 (181) 0
Purchases 637 111
Issuances 0 0
Sales 0 0
Settlements (581) (118)
Balance at end of period 49 128
Unrealized gains (losses) still held 1 (4)
Trading non-derivative assets    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 1,377 3,119
Net realized/unrealized gains (losses) included in principal transactions 82 237
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 859 1,319
Transfers out of Level 3 (1,126) (2,393)
Purchases 2,413 2,586
Issuances 42 34
Sales (1,847) (3,491)
Settlements (33) (34)
Balance at end of period 1,767 1,377
Unrealized gains (losses) still held (67) 88
Trading non-derivative assets | U.S. government-sponsored agency guaranteed    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 301 581
Net realized/unrealized gains (losses) included in principal transactions 24 (50)
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 347 456
Transfers out of Level 3 (426) (856)
Purchases 625 667
Issuances 0 0
Sales (489) (497)
Settlements 0 0
Balance at end of period 382 301
Unrealized gains (losses) still held (13) (18)
Trading non-derivative assets | Other    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 67 116
Net realized/unrealized gains (losses) included in principal transactions (3) (8)
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 66 84
Transfers out of Level 3 (139) (79)
Purchases 232 159
Issuances 0 0
Sales (124) (205)
Settlements 0 0
Balance at end of period 99 67
Unrealized gains (losses) still held (4) (1)
Trading non-derivative assets | Commercial    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 36 202
Net realized/unrealized gains (losses) included in principal transactions (7) 17
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 62 56
Transfers out of Level 3 (81) (189)
Purchases 68 162
Issuances 0 0
Sales (23) (212)
Settlements 0 0
Balance at end of period 55 36
Unrealized gains (losses) still held (2) (4)
Trading non-derivative assets | Mortgage-backed securities    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 404 899
Net realized/unrealized gains (losses) included in principal transactions 14 (41)
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 475 596
Transfers out of Level 3 (646) (1,124)
Purchases 925 988
Issuances 0 0
Sales (636) (914)
Settlements 0 0
Balance at end of period 536 404
Unrealized gains (losses) still held (19) (23)
Trading non-derivative assets | U.S. Treasury and federal agency securities    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 1 7
Net realized/unrealized gains (losses) included in principal transactions 0 4
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 0 1
Transfers out of Level 3 (1) (1)
Purchases 0 0
Issuances 0 0
Sales 0 0
Settlements 0 (10)
Balance at end of period 0 1
Unrealized gains (losses) still held 0 0
Trading non-derivative assets | State and municipal    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 11 3
Net realized/unrealized gains (losses) included in principal transactions 1 2
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 0 20
Transfers out of Level 3 (11) (10)
Purchases 0 0
Issuances 0 0
Sales 0 (4)
Settlements 0 0
Balance at end of period 1 11
Unrealized gains (losses) still held 0 1
Trading non-derivative assets | Foreign government    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 15 54
Net realized/unrealized gains (losses) included in principal transactions 5 (9)
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 62 21
Transfers out of Level 3 (36) (49)
Purchases 19 192
Issuances 0 0
Sales (30) (194)
Settlements 0 0
Balance at end of period 35 15
Unrealized gains (losses) still held 3 0
Trading non-derivative assets | Corporate    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 269 500
Net realized/unrealized gains (losses) included in principal transactions (15) 155
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 105 188
Transfers out of Level 3 (184) (484)
Purchases 368 587
Issuances 0 0
Sales (273) (669)
Settlements 0 (8)
Balance at end of period 270 269
Unrealized gains (losses) still held (55) 97
Trading non-derivative assets | Marketable equity securities    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 166 292
Net realized/unrealized gains (losses) included in principal transactions 26 5
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 74 239
Transfers out of Level 3 (53) (75)
Purchases 260 169
Issuances 0 0
Sales (186) (464)
Settlements 0 0
Balance at end of period 287 166
Unrealized gains (losses) still held 12 (8)
Trading non-derivative assets | Asset-backed securities    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 178 531
Net realized/unrealized gains (losses) included in principal transactions (42) (53)
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 74 54
Transfers out of Level 3 (139) (210)
Purchases 373 273
Issuances 0 0
Sales (219) (417)
Settlements 0 0
Balance at end of period 225 178
Unrealized gains (losses) still held (18) (21)
Trading non-derivative assets | Other trading assets    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 333 833
Net realized/unrealized gains (losses) included in principal transactions 93 174
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 69 200
Transfers out of Level 3 (56) (440)
Purchases 468 377
Issuances 42 34
Sales (503) (829)
Settlements (33) (16)
Balance at end of period 413 333
Unrealized gains (losses) still held 10 42
Investments    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 1,076 1,799
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in Other (21) (86)
Transfers into Level 3 383 96
Transfers out of Level 3 (170) (620)
Purchases 817 436
Issuances 0 0
Sales (669) (549)
Settlements 0 0
Balance at end of period 1,416 1,076
Unrealized gains (losses) still held 3 (29)
Investments | U.S. government-sponsored agency guaranteed    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 36 75
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in Other (1) 4
Transfers into Level 3 10 3
Transfers out of Level 3 (15) 0
Purchases 4 7
Issuances 0 0
Sales (3) (53)
Settlements 0 0
Balance at end of period 31 36
Unrealized gains (losses) still held (3) 5
Investments | Other    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 28 116
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in Other 0 (3)
Transfers into Level 3 0 5
Transfers out of Level 3 (15) (90)
Purchases 0 0
Issuances 0 0
Sales (13) 0
Settlements 0 0
Balance at end of period 0 28
Unrealized gains (losses) still held 0 (3)
Investments | Mortgage-backed securities    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 64 191
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in Other (1) 1
Transfers into Level 3 10 8
Transfers out of Level 3 (30) (90)
Purchases 4 7
Issuances 0 0
Sales (16) (53)
Settlements 0 0
Balance at end of period 31 64
Unrealized gains (losses) still held (3) 2
Investments | U.S. Treasury and federal agency securities    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 0 0
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Purchases 0 0
Issuances 0 0
Sales 0 0
Settlements 0 0
Balance at end of period 0 0
Unrealized gains (losses) still held 0 0
Investments | State and municipal    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 428 542
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in Other 35 (31)
Transfers into Level 3 91 0
Transfers out of Level 3 (16) (8)
Purchases 261 14
Issuances 0 0
Sales (295) (89)
Settlements 0 0
Balance at end of period 504 428
Unrealized gains (losses) still held 10 (14)
Investments | Foreign government    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 12 194
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in Other (5) (16)
Transfers into Level 3 20 8
Transfers out of Level 3 (2) (174)
Purchases 0 36
Issuances 0 0
Sales 0 (36)
Settlements 0 0
Balance at end of period 25 12
Unrealized gains (losses) still held 1 (3)
Investments | Corporate    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 146 362
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in Other (9) (24)
Transfers into Level 3 262 78
Transfers out of Level 3 (112) (348)
Purchases 279 183
Issuances 0 0
Sales (251) (105)
Settlements 0 0
Balance at end of period 315 146
Unrealized gains (losses) still held (3) (7)
Investments | Marketable equity securities    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 14 27
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in Other (21) (13)
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Purchases 218 0
Issuances 0 0
Sales (80) 0
Settlements 0 0
Balance at end of period 131 14
Unrealized gains (losses) still held 0 0
Investments | Asset-backed securities    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 2 0
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 0 2
Transfers out of Level 3 (2) 0
Purchases 1 3
Issuances 0 0
Sales 0 (3)
Settlements 0 0
Balance at end of period 1 2
Unrealized gains (losses) still held 0 0
Investments | Other debt securities    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 6 0
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in Other 0 0
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Purchases 1 6
Issuances 0 0
Sales (7) 0
Settlements 0 0
Balance at end of period 0 6
Unrealized gains (losses) still held 0 0
Investments | Non-marketable equity securities    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 404 483
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in Other (20) (3)
Transfers into Level 3 0 0
Transfers out of Level 3 (8) 0
Purchases 53 187
Issuances 0 0
Sales (20) (263)
Settlements 0 0
Balance at end of period 409 404
Unrealized gains (losses) still held (2) (7)
Loans    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 262 427
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in Other 109 (85)
Transfers into Level 3 7 664
Transfers out of Level 3 (171) (896)
Purchases 0 0
Issuances 189 250
Sales 0 0
Settlements (274) (98)
Balance at end of period 122 262
Unrealized gains (losses) still held 34 (6)
Mortgage servicing rights    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 760 691
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in Other (21) 37
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Purchases 0 0
Issuances 103 104
Sales 0 0
Settlements (83) (72)
Balance at end of period 759 760
Unrealized gains (losses) still held (22) 44
Other financial assets    
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation    
Balance at beginning of period 15 30
Net realized/unrealized gains (losses) included in principal transactions 0 0
Net realized/unrealized gains (losses) included in Other 1 (1)
Transfers into Level 3 2 0
Transfers out of Level 3 0 0
Purchases 62 5
Issuances 30 51
Sales (64) (5)
Settlements (46) (65)
Balance at end of period 0 15
Unrealized gains (losses) still held $ 0 $ (1)