v3.25.2
Derivative Financial Instruments and Hedging Activities - Schedule of Fair Value (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Derivatives, Fair Value [Line Items]    
Notional $ 176,860 $ 169,727
Fair Value of Assets 1,370 981
Fair Value of Liabilities 1,368 2,427
Fair value of assets (liabilities) available for offset 652 693
Other Liabilities    
Derivatives, Fair Value [Line Items]    
Collateral held for netting against asset positions 62 190
Other Assets    
Derivatives, Fair Value [Line Items]    
Collateral available for netting against liability positions 687 1,200
Interest rate swaps | Fair value hedges | Level 2 | Derivatives designated as hedges    
Derivatives, Fair Value [Line Items]    
Notional 43,883 36,145
Fair Value of Assets 158 32
Fair Value of Liabilities 511 621
Interest rate swaps | Cash flow hedges | Level 2 | Derivatives designated as hedges    
Derivatives, Fair Value [Line Items]    
Notional 2,179 1,873
Fair Value of Assets 23 35
Fair Value of Liabilities 26 4
Foreign currency swaps | Cash flow hedges | Level 2 | Derivatives designated as hedges    
Derivatives, Fair Value [Line Items]    
Notional 9,087 8,363
Fair Value of Assets 686 80
Fair Value of Liabilities 51 508
Interest rate contracts | Level 2 | Derivatives not designated as hedges    
Derivatives, Fair Value [Line Items]    
Notional 121,711 123,346
Fair Value of Assets 504 833
Fair Value of Liabilities $ 781 $ 1,294