v3.25.4
FAIR VALUE MEASUREMENT - Items Measured at Fair Value on a Recurring Basis (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Assets, Fair Value Disclosure [Abstract]    
Securities borrowed and purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell, Netting $ (388,227) $ (323,772)
Securities borrowed and purchased under resale agreements 356,195 274,062
Trading account assets 537,139 442,747
Less: Netting agreements to assets (406,408) (334,900)
Less: Netting of cash collateral received (27,471) (27,303)
Trading derivatives 55,434 60,599
Total investments 444,229 476,657
Loans 6,855 8,040
Total Non-trading derivatives and other financial assets measured on a recurring basis, gross 15,840 13,703
Liabilities, Fair Value Disclosure [Abstract]    
Securities loaned and sold under agreements to repurchase, netting (388,227) (323,772)
Netting agreements (406,408) (334,900)
Netting of cash collateral paid (20,629) (28,570)
Total derivative liabilities 58,214 48,298
Short-term borrowings 51,878 48,505
Long-term debt 315,827 287,300
Fair value    
Assets, Fair Value Disclosure [Abstract]    
Securities borrowed and purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell 150,100 133,200
Loans 742,100 673,500
Non-trading derivatives and other financial assets measured on a recurring basis, net 448,000 362,200
Liabilities, Fair Value Disclosure [Abstract]    
Securities loaned and sold under agreements to repurchase 148,700 205,600
Short-term borrowings 21,567 12,484
Long-term debt 189,900 178,000
Long-term debt 130,726 112,719
Non-trading derivatives and other financial liabilities measured on a recurring basis, gross 141,800 137,700
Total non-trading derivatives and other financial liabilities measured on recurring basis 5,492  
Non-marketable equity securities | Fair value    
Assets, Fair Value Disclosure [Abstract]    
Total investments 446 427
Level 1 | Fair value    
Assets, Fair Value Disclosure [Abstract]    
Securities borrowed and purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell 0 0
Loans 0 0
Non-trading derivatives and other financial assets measured on a recurring basis, net 349,600 260,600
Liabilities, Fair Value Disclosure [Abstract]    
Securities loaned and sold under agreements to repurchase 0 0
Long-term debt 0 0
Non-trading derivatives and other financial liabilities measured on a recurring basis, gross 0 0
Level 2 | Fair value    
Assets, Fair Value Disclosure [Abstract]    
Securities borrowed and purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell 150,100 133,200
Loans 0 0
Non-trading derivatives and other financial assets measured on a recurring basis, net 98,400 15,900
Liabilities, Fair Value Disclosure [Abstract]    
Securities loaned and sold under agreements to repurchase 148,700 205,600
Long-term debt 183,800 162,100
Non-trading derivatives and other financial liabilities measured on a recurring basis, gross 141,800 34,700
Level 3 | Fair value    
Assets, Fair Value Disclosure [Abstract]    
Securities borrowed and purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell 0 0
Loans 742,100 673,500
Non-trading derivatives and other financial assets measured on a recurring basis, net 0 85,700
Liabilities, Fair Value Disclosure [Abstract]    
Securities loaned and sold under agreements to repurchase 0 0
Long-term debt 6,100 15,900
Non-trading derivatives and other financial liabilities measured on a recurring basis, gross 0 103,000
Fair Value Measured at Net Asset Value Per Share    
Liabilities, Fair Value Disclosure [Abstract]    
Alternative investment funds, fair value 37 23
Recurring    
Assets, Fair Value Disclosure [Abstract]    
Securities borrowed and purchased under agreements to resell 591,149 462,670
Securities borrowed and purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell, Netting (385,039) (321,815)
Securities borrowed and purchased under resale agreements 206,110 140,855
Securities borrowed and purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell   140,855
Total investments 247,604 227,431
Loans 6,855 8,040
Mortgage servicing rights 759 760
Total assets before netting 1,834,066 1,518,663
Total assets, netting (818,918) (684,018)
Total assets 1,015,148 834,645
Liabilities, Fair Value Disclosure [Abstract]    
Interest-bearing deposits 4,222 3,608
Securities loaned and sold under agreements to repurchase, gross 427,036 260,676
Securities loaned and sold under agreements to repurchase, netting (227,614) (211,522)
Securities loaned and sold under agreements to repurchase 199,422 49,154
Securities sold, not yet purchased 104,574 85,536
Other trading liabilities 104,584 85,548
Short-term borrowings 21,567 12,484
Long-term debt 130,726 112,719
Total liabilities, gross 1,178,878 892,025
Total liabilities, netting (654,651) (574,992)
Total liabilities 524,227 317,033
Recurring | Trading derivatives liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 485,251 411,768
Netting agreements (406,408) (334,900)
Netting of cash collateral paid (20,629) (28,570)
Total trading derivatives—after netting and collateral, gross 485,251 411,768
Netting, Liabilities, total of netting agreements and cash collateral received (427,037) (363,470)
Total derivative liabilities 58,214 48,298
Recurring | Trading derivatives liabilities | Interest rate contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 217,372 122,132
Recurring | Trading derivatives liabilities | Foreign exchange contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 152,864 206,017
Recurring | Trading derivatives liabilities | Equity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 79,201 61,736
Recurring | Trading derivatives liabilities | Commodity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 24,582 14,630
Recurring | Trading derivatives liabilities | Credit derivatives    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 11,232 7,253
Recurring | Non-trading derivatives and other financial liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Netting, Liabilities, total of netting agreements and cash collateral received 0 0
Non-trading derivatives and other financial liabilities measured on a recurring basis, gross 5,492 5,222
Total non-trading derivatives and other financial liabilities measured on recurring basis   5,222
Recurring | U.S. government-sponsored agency guaranteed    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 92,456 63,666
Total investments 36,756 29,306
Recurring | Other    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 897 595
Total investments 976 625
Recurring | Commercial    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 652 667
Recurring | Mortgage-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 94,005 64,928
Total investments 37,732 29,931
Recurring | U.S. Treasury and federal agency securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 143,722 149,355
Total investments 35,465 52,379
Recurring | State and municipal    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 172 179
Total investments 1,537 1,658
Recurring | Foreign government    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 123,391 74,855
Total investments 163,107 133,359
Recurring | Corporate    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 21,843 14,940
Total investments 4,691 4,814
Recurring | Marketable equity securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 70,383 48,808
Total investments 475 151
Recurring | Asset-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 2,533 2,309
Total investments 1,073 848
Recurring | Other debt securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 25,656 26,774
Total investments 3,115 3,887
Recurring | Non-marketable equity securities    
Assets, Fair Value Disclosure [Abstract]    
Total investments 409 404
Recurring | Trading account liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Other trading liabilities 10 12
Recurring | Trading securities (excluding trading account derivatives)    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 481,705 382,148
Recurring | Trading account assets    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 489,313 422,802
Trading derivative, asset, after netting and collateral 489,313 422,802
Less: Netting agreements to assets (406,408) (334,900)
Less: Netting of cash collateral received (27,471) (27,303)
Netting, assets (433,879) (362,203)
Trading derivatives 55,434 60,599
Recurring | Trading account assets | Interest rate contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 225,911 130,278
Recurring | Trading account assets | Foreign exchange contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 161,684 216,045
Recurring | Trading account assets | Equity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 69,307 55,144
Recurring | Trading account assets | Commodity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 22,688 12,620
Recurring | Trading account assets | Credit derivatives    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 9,723 8,715
Recurring | Non-trading derivatives and other financial assets    
Assets, Fair Value Disclosure [Abstract]    
Netting, assets 0 0
Total Non-trading derivatives and other financial assets measured on a recurring basis, gross 16,681 14,812
Non-trading derivatives and other financial assets measured on a recurring basis, net   14,812
Recurring | Level 1    
Assets, Fair Value Disclosure [Abstract]    
Securities borrowed and purchased under agreements to resell 485 0
Total investments 119,112 116,900
Loans 0 0
Mortgage servicing rights 0 0
Total assets before netting $ 395,551 $ 343,336
Total as a percentage of gross assets 21.50% 22.60%
Liabilities, Fair Value Disclosure [Abstract]    
Interest-bearing deposits $ 0 $ 0
Securities loaned and sold under agreements to repurchase, gross 0 0
Securities sold, not yet purchased 89,352 72,324
Other trading liabilities 89,352 72,324
Short-term borrowings 0 0
Long-term debt 0 0
Total liabilities, gross $ 94,843 $ 76,848
Total as a percentage of gross liabilities 8.00% 8.60%
Recurring | Level 1 | Trading derivatives liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability $ 54 $ 46
Recurring | Level 1 | Trading derivatives liabilities | Interest rate contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 5 6
Recurring | Level 1 | Trading derivatives liabilities | Foreign exchange contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 0 0
Recurring | Level 1 | Trading derivatives liabilities | Equity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 49 40
Recurring | Level 1 | Trading derivatives liabilities | Commodity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 0 0
Recurring | Level 1 | Trading derivatives liabilities | Credit derivatives    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 0 0
Recurring | Level 1 | Non-trading derivatives and other financial liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Non-trading derivatives and other financial liabilities measured on recurring basis 5,437 4,478
Recurring | Level 1 | U.S. government-sponsored agency guaranteed    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 0 0
Total investments 0 0
Recurring | Level 1 | Other    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 0 0
Total investments 0 0
Recurring | Level 1 | Commercial    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 0 0
Recurring | Level 1 | Mortgage-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 0 0
Total investments 0 0
Recurring | Level 1 | U.S. Treasury and federal agency securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 140,671 142,837
Total investments 35,465 51,501
Recurring | Level 1 | State and municipal    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 0 0
Total investments 0 0
Recurring | Level 1 | Foreign government    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 65,966 35,805
Total investments 80,048 62,106
Recurring | Level 1 | Corporate    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 1,161 1,197
Total investments 3,193 3,163
Recurring | Level 1 | Marketable equity securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 61,986 41,163
Total investments 342 130
Recurring | Level 1 | Asset-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 0 0
Total investments 0 0
Recurring | Level 1 | Other debt securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 0 0
Total investments 64 0
Recurring | Level 1 | Non-marketable equity securities    
Assets, Fair Value Disclosure [Abstract]    
Total investments 0 0
Recurring | Level 1 | Trading account liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Other trading liabilities 0 0
Recurring | Level 1 | Trading securities (excluding trading account derivatives)    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 269,784 221,002
Recurring | Level 1 | Trading account assets    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 40 61
Recurring | Level 1 | Trading account assets | Interest rate contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 9 17
Recurring | Level 1 | Trading account assets | Foreign exchange contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 0 0
Recurring | Level 1 | Trading account assets | Equity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 31 44
Recurring | Level 1 | Trading account assets | Commodity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 0 0
Recurring | Level 1 | Trading account assets | Credit derivatives    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 0 0
Recurring | Level 1 | Non-trading derivatives and other financial assets    
Assets, Fair Value Disclosure [Abstract]    
Non-trading derivatives and other financial assets measured on a recurring basis, gross 6,130 5,373
Recurring | Level 2    
Assets, Fair Value Disclosure [Abstract]    
Securities borrowed and purchased under agreements to resell 590,615 462,542
Total investments 127,076 109,455
Loans 6,733 7,778
Mortgage servicing rights 0 0
Total assets before netting $ 1,427,986 $ 1,166,133
Total as a percentage of gross assets 77.90% 76.80%
Liabilities, Fair Value Disclosure [Abstract]    
Interest-bearing deposits $ 3,983 $ 3,569
Securities loaned and sold under agreements to repurchase, gross 426,084 260,286
Securities sold, not yet purchased 15,177 13,184
Other trading liabilities 15,187 13,196
Short-term borrowings 21,275 12,187
Long-term debt 106,767 91,619
Total liabilities, gross $ 1,048,863 $ 786,422
Total as a percentage of gross liabilities 89.00% 88.20%
Recurring | Level 2 | Trading derivatives liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability $ 475,512 $ 404,821
Recurring | Level 2 | Trading derivatives liabilities | Interest rate contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 215,562 120,097
Recurring | Level 2 | Trading derivatives liabilities | Foreign exchange contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 152,202 205,487
Recurring | Level 2 | Trading derivatives liabilities | Equity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 74,365 58,642
Recurring | Level 2 | Trading derivatives liabilities | Commodity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 23,713 13,960
Recurring | Level 2 | Trading derivatives liabilities | Credit derivatives    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 9,670 6,635
Recurring | Level 2 | Non-trading derivatives and other financial liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Non-trading derivatives and other financial liabilities measured on recurring basis 55 744
Recurring | Level 2 | U.S. government-sponsored agency guaranteed    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 92,074 63,365
Total investments 36,725 29,270
Recurring | Level 2 | Other    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 798 528
Total investments 976 597
Recurring | Level 2 | Commercial    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 597 631
Recurring | Level 2 | Mortgage-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 93,469 64,524
Total investments 37,701 29,867
Recurring | Level 2 | U.S. Treasury and federal agency securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 3,051 6,517
Total investments 0 878
Recurring | Level 2 | State and municipal    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 171 168
Total investments 1,033 1,230
Recurring | Level 2 | Foreign government    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 57,390 39,035
Total investments 83,034 71,241
Recurring | Level 2 | Corporate    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 20,412 13,474
Total investments 1,183 1,505
Recurring | Level 2 | Marketable equity securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 8,110 7,479
Total investments 2 7
Recurring | Level 2 | Asset-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 2,308 2,131
Total investments 1,072 846
Recurring | Level 2 | Other debt securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 25,243 26,441
Total investments 3,051 3,881
Recurring | Level 2 | Non-marketable equity securities    
Assets, Fair Value Disclosure [Abstract]    
Total investments 0 0
Recurring | Level 2 | Trading account liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Other trading liabilities 10 12
Recurring | Level 2 | Trading securities (excluding trading account derivatives)    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 210,154 159,769
Recurring | Level 2 | Trading account assets    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 482,857 417,165
Recurring | Level 2 | Trading account assets | Interest rate contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 224,077 128,562
Recurring | Level 2 | Trading account assets | Foreign exchange contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 161,072 215,330
Recurring | Level 2 | Trading account assets | Equity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 67,453 53,734
Recurring | Level 2 | Trading account assets | Commodity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 21,675 11,546
Recurring | Level 2 | Trading account assets | Credit derivatives    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 8,580 7,993
Recurring | Level 2 | Non-trading derivatives and other financial assets    
Assets, Fair Value Disclosure [Abstract]    
Non-trading derivatives and other financial assets measured on a recurring basis, gross 10,551 9,424
Recurring | Level 3    
Assets, Fair Value Disclosure [Abstract]    
Securities borrowed and purchased under agreements to resell 49 128
Total investments 1,416 1,076
Loans 122 262
Mortgage servicing rights 759 760
Total assets before netting $ 10,529 $ 9,194
Total as a percentage of gross assets 0.60% 0.60%
Liabilities, Fair Value Disclosure [Abstract]    
Interest-bearing deposits $ 239 $ 39
Securities loaned and sold under agreements to repurchase, gross 952 390
Securities sold, not yet purchased 45 28
Other trading liabilities 45 28
Short-term borrowings 292 297
Long-term debt 23,959 21,100
Total liabilities, gross $ 35,172 $ 28,755
Total as a percentage of gross liabilities 3.00% 3.20%
Recurring | Level 3 | Trading derivatives liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability $ 9,685 $ 6,901
Recurring | Level 3 | Trading derivatives liabilities | Interest rate contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 1,805 2,029
Recurring | Level 3 | Trading derivatives liabilities | Foreign exchange contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 662 530
Recurring | Level 3 | Trading derivatives liabilities | Equity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 4,787 3,054
Recurring | Level 3 | Trading derivatives liabilities | Commodity contracts    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 869 670
Recurring | Level 3 | Trading derivatives liabilities | Credit derivatives    
Liabilities, Fair Value Disclosure [Abstract]    
Trading derivatives, liability 1,562 618
Recurring | Level 3 | Non-trading derivatives and other financial liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Non-trading derivatives and other financial liabilities measured on recurring basis 0 0
Recurring | Level 3 | U.S. government-sponsored agency guaranteed    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 382 301
Total investments 31 36
Recurring | Level 3 | Other    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 99 67
Total investments 0 28
Recurring | Level 3 | Commercial    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 55 36
Recurring | Level 3 | Mortgage-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 536 404
Total investments 31 64
Recurring | Level 3 | U.S. Treasury and federal agency securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 0 1
Total investments 0 0
Recurring | Level 3 | State and municipal    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 1 11
Total investments 504 428
Recurring | Level 3 | Foreign government    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 35 15
Total investments 25 12
Recurring | Level 3 | Corporate    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 270 269
Total investments 315 146
Recurring | Level 3 | Marketable equity securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 287 166
Total investments 131 14
Recurring | Level 3 | Asset-backed securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 225 178
Total investments 1 2
Recurring | Level 3 | Other debt securities    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 413 333
Total investments 0 6
Recurring | Level 3 | Non-marketable equity securities    
Assets, Fair Value Disclosure [Abstract]    
Total investments 409 404
Recurring | Level 3 | Trading account liabilities    
Liabilities, Fair Value Disclosure [Abstract]    
Other trading liabilities 0 0
Recurring | Level 3 | Trading securities (excluding trading account derivatives)    
Assets, Fair Value Disclosure [Abstract]    
Trading account assets 1,767 1,377
Recurring | Level 3 | Trading account assets    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 6,416 5,576
Recurring | Level 3 | Trading account assets | Interest rate contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 1,825 1,699
Recurring | Level 3 | Trading account assets | Foreign exchange contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 612 715
Recurring | Level 3 | Trading account assets | Equity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 1,823 1,366
Recurring | Level 3 | Trading account assets | Commodity contracts    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 1,013 1,074
Recurring | Level 3 | Trading account assets | Credit derivatives    
Assets, Fair Value Disclosure [Abstract]    
Trading derivatives, asset, before netting and collateral 1,143 722
Recurring | Level 3 | Non-trading derivatives and other financial assets    
Assets, Fair Value Disclosure [Abstract]    
Non-trading derivatives and other financial assets measured on a recurring basis, gross $ 0 $ 15