v3.25.2
FAIR VALUE MEASUREMENT - Items Measured at Fair Value on a Recurring Basis (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Assets, Fair Value Disclosure [Abstract]    
Federal funds sold and securities borrowed and purchased under agreements to resell, Netting $ (326,389) $ (323,772)
Trading account assets 568,558 442,747
Netting agreements (385,343) (334,900)
Netting of cash collateral received (27,790) (27,303)
Trading derivatives 58,586 60,599
Investments 449,400 476,657
Held at fair value 9,257 8,040
Liabilities, Fair Value Disclosure [Abstract]    
Federal funds purchased and securities loaned and sold under agreements to repurchase, Netting (326,389) (323,772)
Netting agreements (385,343) (334,900)
Netting of cash collateral paid (23,829) (28,570)
Total derivative liabilities 54,451 48,298
Fair Value Measured at Net Asset Value Per Share    
Liabilities, Fair Value Disclosure [Abstract]    
Investments measured at net asset value excluded from Level 3 32 23
Recurring    
Assets, Fair Value Disclosure [Abstract]    
Federal funds sold and securities borrowed and purchased under agreements to resell 494,419 462,670
Federal funds sold and securities borrowed and purchased under agreements to resell, Netting (319,395) (321,815)
Federal funds sold and securities borrowed and purchased under agreements to resell 175,024 140,855
Investments 236,353 227,431
Held at fair value 9,257 8,040
Mortgage servicing rights 770 760
Assets before netting 1,738,340 1,518,663
Netting, Assets, total of netting agreements and cash collateral received (732,528) (684,018)
Total assets 1,005,812 834,645
Liabilities, Fair Value Disclosure [Abstract]    
Interest-bearing deposits 4,112 3,608
Federal funds purchased and securities loaned and sold under agreements to repurchase, Gross 362,522 260,676
Federal funds purchased and securities loaned and sold under agreements to repurchase, Netting (170,124) (211,522)
Federal funds purchased and securities loaned and sold under agreements to repurchase 192,398 49,154
Securities sold, not yet purchased 109,488 85,536
Trading liabilities 109,501 85,548
Short-term borrowings 20,594 12,484
Long-term debt 127,373 112,719
Total liabilities, Gross 1,091,640 892,025
Total liabilities, Netting (579,296) (574,992)
Total liabilities 512,344 317,033
Recurring | Securities sold, not yet purchased    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 463,623 411,768
Total trading derivatives and cash collateral, liability 463,623 411,768
Netting agreements (385,343) (334,900)
Netting of cash collateral paid (23,829) (28,570)
Netting, Liabilities, total of netting agreements and cash collateral received (409,172) (363,470)
Total derivative liabilities 54,451 48,298
Recurring | Securities sold, not yet purchased | Interest rate contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 189,399 122,132
Recurring | Securities sold, not yet purchased | Foreign exchange contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 166,185 206,017
Recurring | Securities sold, not yet purchased | Equity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 82,524 61,736
Recurring | Securities sold, not yet purchased | Commodity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 16,006 14,630
Recurring | Securities sold, not yet purchased | Credit derivatives    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 9,509 7,253
Recurring | Other financial liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Netting of cash collateral paid   0
Non-trading derivatives and other financial liabilities measured on a recurring basis, gross 3,915 5,222
Total other assets and cash collateral, gross 3,915 5,222
Recurring | Other trading liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Trading liabilities 13 12
Recurring | Mortgage-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 90,537 64,928
Investments 37,003 29,931
Recurring | Mortgage securitizations - U.S. agency-sponsored    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 89,072 63,666
Investments 36,174 29,306
Recurring | Residential    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 662 595
Investments 828 624
Recurring | Commercial    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 803 667
Investments 1 1
Recurring | U.S. Treasury and federal agency securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 157,000 149,355
Investments 35,490 52,379
Recurring | State and municipal    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 167 179
Investments 1,672 1,658
Recurring | Foreign government    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 128,365 74,855
Investments 150,990 133,359
Recurring | Corporate    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 24,096 14,940
Investments 5,258 4,814
Recurring | Equity securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 79,171 48,808
Investments 112 151
Recurring | Asset-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 2,245 2,309
Investments 987 848
Recurring | Other debt securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 28,391 26,774
Investments 4,402 3,887
Recurring | Non-marketable equity securities    
Assets, Fair Value Disclosure [Abstract]    
Investments 439 404
Recurring | Trading mortgage-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 509,972 382,148
Recurring | Trading account derivatives    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 471,719 422,802
Trading derivative, asset, gross net cash collateral paid 471,719 422,802
Netting agreements (385,343) (334,900)
Netting of cash collateral received (27,790) (27,303)
Total trading derivatives, netting (413,133) (362,203)
Trading derivatives 58,586 60,599
Recurring | Trading account derivatives | Interest rate contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 197,490 130,278
Recurring | Trading account derivatives | Foreign exchange contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 176,664 216,045
Recurring | Trading account derivatives | Equity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 73,242 55,144
Recurring | Trading account derivatives | Commodity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 14,336 12,620
Recurring | Trading account derivatives | Credit derivatives    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 9,987 8,715
Recurring | Other financial assets    
Assets, Fair Value Disclosure [Abstract]    
Total trading derivatives, netting   0
Total other assets and cash collateral, gross 15,850 14,812
Other assets 15,850 14,812
Recurring | Level 1    
Assets, Fair Value Disclosure [Abstract]    
Federal funds sold and securities borrowed and purchased under agreements to resell 0 0
Investments 116,747 116,900
Held at fair value 0 0
Mortgage servicing rights 0 0
Assets before netting $ 418,353 $ 343,336
Total as a percentage of gross assets 24.10% 22.60%
Liabilities, Fair Value Disclosure [Abstract]    
Interest-bearing deposits $ 0 $ 0
Federal funds purchased and securities loaned and sold under agreements to repurchase, Gross 0 0
Securities sold, not yet purchased 89,670 72,324
Trading liabilities 89,670 72,324
Short-term borrowings 0 0
Long-term debt 0 0
Total liabilities, Gross $ 93,268 $ 76,848
Total as a percentage of gross liabilities 8.50% 8.60%
Recurring | Level 1 | Securities sold, not yet purchased    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability $ 167 $ 46
Recurring | Level 1 | Securities sold, not yet purchased | Interest rate contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 19 6
Recurring | Level 1 | Securities sold, not yet purchased | Foreign exchange contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 0 0
Recurring | Level 1 | Securities sold, not yet purchased | Equity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 148 40
Recurring | Level 1 | Securities sold, not yet purchased | Commodity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 0 0
Recurring | Level 1 | Securities sold, not yet purchased | Credit derivatives    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 0 0
Recurring | Level 1 | Other financial liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Other liabilities, gross 3,431 4,478
Recurring | Level 1 | Other trading liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Trading liabilities 0 0
Recurring | Level 1 | Mortgage-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 0 0
Investments 0 0
Recurring | Level 1 | Mortgage securitizations - U.S. agency-sponsored    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 0 0
Investments 0 0
Recurring | Level 1 | Residential    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 0 0
Investments 0 0
Recurring | Level 1 | Commercial    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 0 0
Investments 0 0
Recurring | Level 1 | U.S. Treasury and federal agency securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 153,324 142,837
Investments 35,490 51,501
Recurring | Level 1 | State and municipal    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 0 0
Investments 0 0
Recurring | Level 1 | Foreign government    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 70,486 35,805
Investments 77,400 62,106
Recurring | Level 1 | Corporate    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 1,873 1,197
Investments 3,708 3,163
Recurring | Level 1 | Equity securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 70,649 41,163
Investments 104 130
Recurring | Level 1 | Asset-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 0 0
Investments 0 0
Recurring | Level 1 | Other debt securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 1 0
Investments 45 0
Recurring | Level 1 | Non-marketable equity securities    
Assets, Fair Value Disclosure [Abstract]    
Investments 0 0
Recurring | Level 1 | Trading mortgage-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 296,333 221,002
Recurring | Level 1 | Trading account derivatives    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 208 61
Recurring | Level 1 | Trading account derivatives | Interest rate contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 49 17
Recurring | Level 1 | Trading account derivatives | Foreign exchange contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 0 0
Recurring | Level 1 | Trading account derivatives | Equity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 159 44
Recurring | Level 1 | Trading account derivatives | Commodity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 0 0
Recurring | Level 1 | Trading account derivatives | Credit derivatives    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 0 0
Recurring | Level 1 | Other financial assets    
Assets, Fair Value Disclosure [Abstract]    
Other assets, gross 5,065 5,373
Recurring | Level 2    
Assets, Fair Value Disclosure [Abstract]    
Federal funds sold and securities borrowed and purchased under agreements to resell 494,333 462,542
Investments 118,396 109,455
Held at fair value 9,077 7,778
Mortgage servicing rights 0 0
Assets before netting $ 1,310,549 $ 1,166,133
Total as a percentage of gross assets 75.40% 76.80%
Liabilities, Fair Value Disclosure [Abstract]    
Interest-bearing deposits $ 4,069 $ 3,569
Federal funds purchased and securities loaned and sold under agreements to repurchase, Gross 361,567 260,286
Securities sold, not yet purchased 19,781 13,184
Trading liabilities 19,794 13,196
Short-term borrowings 20,251 12,187
Long-term debt 106,207 91,619
Total liabilities, Gross $ 968,045 $ 786,422
Total as a percentage of gross liabilities 88.70% 88.20%
Recurring | Level 2 | Securities sold, not yet purchased    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability $ 455,738 $ 404,821
Recurring | Level 2 | Securities sold, not yet purchased | Interest rate contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 187,240 120,097
Recurring | Level 2 | Securities sold, not yet purchased | Foreign exchange contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 165,633 205,487
Recurring | Level 2 | Securities sold, not yet purchased | Equity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 79,133 58,642
Recurring | Level 2 | Securities sold, not yet purchased | Commodity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 15,113 13,960
Recurring | Level 2 | Securities sold, not yet purchased | Credit derivatives    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 8,619 6,635
Recurring | Level 2 | Other financial liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Other liabilities, gross 419 744
Recurring | Level 2 | Other trading liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Trading liabilities 13 12
Recurring | Level 2 | Mortgage-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 89,845 64,524
Investments 36,973 29,867
Recurring | Level 2 | Mortgage securitizations - U.S. agency-sponsored    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 88,527 63,365
Investments 36,155 29,270
Recurring | Level 2 | Residential    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 577 528
Investments 817 596
Recurring | Level 2 | Commercial    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 741 631
Investments 1 1
Recurring | Level 2 | U.S. Treasury and federal agency securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 3,676 6,517
Investments 0 878
Recurring | Level 2 | State and municipal    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 166 168
Investments 1,169 1,230
Recurring | Level 2 | Foreign government    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 57,875 39,035
Investments 73,563 71,241
Recurring | Level 2 | Corporate    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 21,941 13,474
Investments 1,342 1,505
Recurring | Level 2 | Equity securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 8,271 7,479
Investments 5 7
Recurring | Level 2 | Asset-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 2,034 2,131
Investments 987 846
Recurring | Level 2 | Other debt securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 27,824 26,441
Investments 4,357 3,881
Recurring | Level 2 | Non-marketable equity securities    
Assets, Fair Value Disclosure [Abstract]    
Investments 0 0
Recurring | Level 2 | Trading mortgage-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 211,632 159,769
Recurring | Level 2 | Trading account derivatives    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 466,409 417,165
Recurring | Level 2 | Trading account derivatives | Interest rate contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 195,757 128,562
Recurring | Level 2 | Trading account derivatives | Foreign exchange contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 176,044 215,330
Recurring | Level 2 | Trading account derivatives | Equity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 72,007 53,734
Recurring | Level 2 | Trading account derivatives | Commodity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 13,316 11,546
Recurring | Level 2 | Trading account derivatives | Credit derivatives    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 9,285 7,993
Recurring | Level 2 | Other financial assets    
Assets, Fair Value Disclosure [Abstract]    
Other assets, gross 10,702 9,424
Recurring | Level 3    
Assets, Fair Value Disclosure [Abstract]    
Federal funds sold and securities borrowed and purchased under agreements to resell 86 128
Investments 1,210 1,076
Held at fair value 180 262
Mortgage servicing rights 770 760
Assets before netting $ 9,438 $ 9,194
Total as a percentage of gross assets 0.50% 0.60%
Liabilities, Fair Value Disclosure [Abstract]    
Interest-bearing deposits $ 43 $ 39
Federal funds purchased and securities loaned and sold under agreements to repurchase, Gross 955 390
Securities sold, not yet purchased 37 28
Trading liabilities 37 28
Short-term borrowings 343 297
Long-term debt 21,166 21,100
Total liabilities, Gross $ 30,327 $ 28,755
Total as a percentage of gross liabilities 2.80% 3.20%
Recurring | Level 3 | Securities sold, not yet purchased    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability $ 7,718 $ 6,901
Recurring | Level 3 | Securities sold, not yet purchased | Interest rate contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 2,140 2,029
Recurring | Level 3 | Securities sold, not yet purchased | Foreign exchange contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 552 530
Recurring | Level 3 | Securities sold, not yet purchased | Equity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 3,243 3,054
Recurring | Level 3 | Securities sold, not yet purchased | Commodity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 893 670
Recurring | Level 3 | Securities sold, not yet purchased | Credit derivatives    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 890 618
Recurring | Level 3 | Other financial liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Other liabilities, gross 65 0
Recurring | Level 3 | Other trading liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Trading liabilities 0 0
Recurring | Level 3 | Mortgage-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 692 404
Investments 30 64
Recurring | Level 3 | Mortgage securitizations - U.S. agency-sponsored    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 545 301
Investments 19 36
Recurring | Level 3 | Residential    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 85 67
Investments 11 28
Recurring | Level 3 | Commercial    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 62 36
Investments 0 0
Recurring | Level 3 | U.S. Treasury and federal agency securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 0 1
Investments 0 0
Recurring | Level 3 | State and municipal    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 1 11
Investments 503 428
Recurring | Level 3 | Foreign government    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 4 15
Investments 27 12
Recurring | Level 3 | Corporate    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 282 269
Investments 208 146
Recurring | Level 3 | Equity securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 251 166
Investments 3 14
Recurring | Level 3 | Asset-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 211 178
Investments 0 2
Recurring | Level 3 | Other debt securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 566 333
Investments 0 6
Recurring | Level 3 | Non-marketable equity securities    
Assets, Fair Value Disclosure [Abstract]    
Investments 439 404
Recurring | Level 3 | Trading mortgage-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 2,007 1,377
Recurring | Level 3 | Trading account derivatives    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 5,102 5,576
Recurring | Level 3 | Trading account derivatives | Interest rate contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 1,684 1,699
Recurring | Level 3 | Trading account derivatives | Foreign exchange contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 620 715
Recurring | Level 3 | Trading account derivatives | Equity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 1,076 1,366
Recurring | Level 3 | Trading account derivatives | Commodity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 1,020 1,074
Recurring | Level 3 | Trading account derivatives | Credit derivatives    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, Gross 702 722
Recurring | Level 3 | Other financial assets    
Assets, Fair Value Disclosure [Abstract]    
Other assets, gross $ 83 $ 15