v3.26.1
Fair Value Measurements - Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities $ 936 $ 1,061
Total securities available for sale 38,459 39,596
Loans, net of unearned income (residential) 110,430 106,541
Derivative assets 543 472
Netting adjustments (347) (297)
Total derivative assets 196 175
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 1,017 927
Netting adjustments (323) (274)
U.S. Treasury, agencies and corporations    
ASSETS MEASURED ON A RECURRING BASIS    
Total securities available for sale 7,075 7,886
Agency residential mortgage-backed securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total securities available for sale 19,608 19,195
Agency commercial mortgage-backed securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total securities available for sale 3,781 3,950
Recurring    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 929 1,056
Commercial loans 7 5
Total trading account assets 936 1,061
Total securities available for sale 38,459 39,596
Total other investments 94 86
Loans, net of unearned income (residential) 11 11
Loans held for sale (residential) 204 149
Derivative assets 543 472
Netting adjustments (347) (297)
Total derivative assets 196 175
Total assets on a recurring basis at fair value 39,900 41,078
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 1,017 927
Netting adjustments (323) (274)
Total derivative liabilities 694 653
Total liabilities on a recurring basis at fair value 1,624 1,474
Recurring | Short positions    
LIABILITIES MEASURED ON A RECURRING BASIS    
Short positions 930 821
Recurring | Interest rate    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets 104 132
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 635 577
Recurring | Foreign exchange    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets 99 83
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 95 80
Recurring | Commodity    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets 284 249
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 273 237
Recurring | Credit    
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 5 8
Recurring | Other    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets 56 8
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 9 25
Recurring | Agency residential collateralized mortgage obligations    
ASSETS MEASURED ON A RECURRING BASIS    
Total securities available for sale 7,995 8,565
Recurring | Other mortgage-backed securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 430 316
Recurring | U.S. Treasury, agencies and corporations    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 434 674
Total securities available for sale 7,075 7,886
Recurring | States and political subdivisions    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 20 60
Recurring | Other securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 45 6
Total securities available for sale 0 0
Recurring | Agency residential mortgage-backed securities | Other mortgage-backed securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total securities available for sale 19,608 19,195
Recurring | Agency commercial mortgage-backed securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total securities available for sale 3,781 3,950
Recurring | Indirect investments | Variable Interest Entity, Not Primary Beneficiary    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 7 9
Recurring | Total principal investments    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 7 9
Recurring | Equity Investments, Direct    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 6 3
Recurring | Equity Investments Direct, NAV    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 78 71
Recurring | Equity Investments Indirect, NAV    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 3 3
Recurring | Equity Investments    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 87 77
Level 1 | Recurring    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 0 0
Commercial loans 0 0
Total trading account assets 0 0
Total securities available for sale 0 0
Total other investments 0 0
Loans, net of unearned income (residential) 0 0
Loans held for sale (residential) 0 0
Derivative assets 66 39
Netting adjustments 0 0
Total derivative assets 66 39
Total assets on a recurring basis at fair value 66 39
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 61 36
Netting adjustments 0 0
Total derivative liabilities 61 36
Total liabilities on a recurring basis at fair value 729 448
Level 1 | Recurring | Short positions    
LIABILITIES MEASURED ON A RECURRING BASIS    
Short positions 668 412
Level 1 | Recurring | Interest rate    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets 0 0
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 0 0
Level 1 | Recurring | Foreign exchange    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets 66 39
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 61 36
Level 1 | Recurring | Commodity    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets 0 0
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 0 0
Level 1 | Recurring | Credit    
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 0 0
Level 1 | Recurring | Other    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets 0 0
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 0 0
Level 1 | Recurring | Agency residential collateralized mortgage obligations    
ASSETS MEASURED ON A RECURRING BASIS    
Total securities available for sale 0 0
Level 1 | Recurring | Other mortgage-backed securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 0 0
Level 1 | Recurring | U.S. Treasury, agencies and corporations    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 0 0
Total securities available for sale 0 0
Level 1 | Recurring | States and political subdivisions    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 0 0
Level 1 | Recurring | Other securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 0 0
Total securities available for sale 0 0
Level 1 | Recurring | Agency residential mortgage-backed securities | Other mortgage-backed securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total securities available for sale 0 0
Level 1 | Recurring | Agency commercial mortgage-backed securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total securities available for sale 0 0
Level 1 | Recurring | Indirect investments | Variable Interest Entity, Not Primary Beneficiary    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 0 0
Level 1 | Recurring | Total principal investments    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 0 0
Level 1 | Recurring | Equity Investments, Direct    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 0 0
Level 1 | Recurring | Equity Investments Direct, NAV    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 0 0
Level 1 | Recurring | Equity Investments Indirect, NAV    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 0 0
Level 1 | Recurring | Equity Investments    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 0 0
Level 2 | Recurring    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 929 1,056
Commercial loans 7 5
Total trading account assets 936 1,061
Total securities available for sale 38,459 39,596
Total other investments 4 0
Loans, net of unearned income (residential) 0 0
Loans held for sale (residential) 204 149
Derivative assets 476 435
Netting adjustments 0 0
Total derivative assets 476 435
Total assets on a recurring basis at fair value 40,079 41,241
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 956 891
Netting adjustments 0 0
Total derivative liabilities 956 891
Total liabilities on a recurring basis at fair value 1,218 1,300
Level 2 | Recurring | Short positions    
LIABILITIES MEASURED ON A RECURRING BASIS    
Short positions 262 409
Level 2 | Recurring | Interest rate    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets 105 135
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 635 577
Level 2 | Recurring | Foreign exchange    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets 33 44
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 34 44
Level 2 | Recurring | Commodity    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets 284 249
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 273 237
Level 2 | Recurring | Credit    
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 5 8
Level 2 | Recurring | Other    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets 54 7
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 9 25
Level 2 | Recurring | Agency residential collateralized mortgage obligations    
ASSETS MEASURED ON A RECURRING BASIS    
Total securities available for sale 7,995 8,565
Level 2 | Recurring | Other mortgage-backed securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 430 316
Level 2 | Recurring | U.S. Treasury, agencies and corporations    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 434 674
Total securities available for sale 7,075 7,886
Level 2 | Recurring | States and political subdivisions    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 20 60
Level 2 | Recurring | Other securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 45 6
Total securities available for sale 0 0
Level 2 | Recurring | Agency residential mortgage-backed securities | Other mortgage-backed securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total securities available for sale 19,608 19,195
Level 2 | Recurring | Agency commercial mortgage-backed securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total securities available for sale 3,781 3,950
Level 2 | Recurring | Indirect investments | Variable Interest Entity, Not Primary Beneficiary    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 0 0
Level 2 | Recurring | Total principal investments    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 0 0
Level 2 | Recurring | Equity Investments, Direct    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 4 0
Level 2 | Recurring | Equity Investments Direct, NAV    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 0 0
Level 2 | Recurring | Equity Investments Indirect, NAV    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 0 0
Level 2 | Recurring | Equity Investments    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 4 0
Level 3 | Other    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets 2  
Level 3 | Recurring    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 0 0
Commercial loans 0 0
Total trading account assets 0 0
Total securities available for sale 0 0
Total other investments 2 3
Loans, net of unearned income (residential) 11 11
Loans held for sale (residential) 0 0
Derivative assets 1 (2)
Netting adjustments 0 0
Total derivative assets 1 (2)
Total assets on a recurring basis at fair value 14 12
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 0 0
Netting adjustments 0 0
Total derivative liabilities 0 0
Total liabilities on a recurring basis at fair value 0 0
Level 3 | Recurring | Short positions    
LIABILITIES MEASURED ON A RECURRING BASIS    
Short positions 0 0
Level 3 | Recurring | Interest rate    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets (1) (3)
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 0 0
Level 3 | Recurring | Foreign exchange    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets 0 0
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 0 0
Level 3 | Recurring | Commodity    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets 0 0
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 0 0
Level 3 | Recurring | Credit    
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 0 0
Level 3 | Recurring | Other    
ASSETS MEASURED ON A RECURRING BASIS    
Derivative assets   1
LIABILITIES MEASURED ON A RECURRING BASIS    
Derivative liabilities 0 0
Level 3 | Recurring | Agency residential collateralized mortgage obligations    
ASSETS MEASURED ON A RECURRING BASIS    
Total securities available for sale 0 0
Level 3 | Recurring | Other mortgage-backed securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 0 0
Level 3 | Recurring | U.S. Treasury, agencies and corporations    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 0 0
Total securities available for sale 0 0
Level 3 | Recurring | States and political subdivisions    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 0 0
Level 3 | Recurring | Other securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total trading account securities 0 0
Total securities available for sale 0 0
Level 3 | Recurring | Agency residential mortgage-backed securities | Other mortgage-backed securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total securities available for sale 0 0
Level 3 | Recurring | Agency commercial mortgage-backed securities    
ASSETS MEASURED ON A RECURRING BASIS    
Total securities available for sale 0 0
Level 3 | Recurring | Indirect investments | Variable Interest Entity, Not Primary Beneficiary    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 0 0
Level 3 | Recurring | Total principal investments    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 0 0
Level 3 | Recurring | Equity Investments, Direct    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 2 3
Level 3 | Recurring | Equity Investments Direct, NAV    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 0 0
Level 3 | Recurring | Equity Investments Indirect, NAV    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments 0 0
Level 3 | Recurring | Equity Investments    
ASSETS MEASURED ON A RECURRING BASIS    
Total other investments $ 2 $ 3