v3.26.1
Variable Interest Entities - Additional Information (Details) - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Variable Interest Entity [Line Items]    
Accrued income and other assets $ 8,481,000,000 $ 8,797,000,000
Accrued expense and other liabilities 4,286,000,000 4,983,000,000
VIE, assets that can only be used to settle obligations 184,381,000,000 187,168,000,000
VIE, liabilities 164,000,000,000 168,992,000,000
Fair Value, Recurring    
Variable Interest Entity [Line Items]    
Other investments 86,000,000 73,000,000
Variable Interest Entity, Not Primary Beneficiary    
Variable Interest Entity [Line Items]    
Accrued income and other assets 2,400,000,000 2,500,000,000
Accrued expense and other liabilities 1,100,000,000 1,400,000,000
VIE, assets that can only be used to settle obligations 508,000,000 733,000,000
Tax credit of investment   223,000,000
VIE, liabilities 0 1,000,000
Variable Interest Entity, Not Primary Beneficiary | Other Unconsolidated Variable Interest Entities    
Variable Interest Entity [Line Items]    
Other investments 74,000,000  
Variable Interest Entity, Not Primary Beneficiary | NMTC    
Variable Interest Entity [Line Items]    
VIE, assets that can only be used to settle obligations 18,000,000 29,000,000
Variable Interest Entity, Not Primary Beneficiary | Investments    
Variable Interest Entity [Line Items]    
Amortization of investment 268,000,000 234,000,000
Tax credit of investment 258,000,000  
Other tax benefits 65,000,000 56,000,000
Variable Interest Entity, Primary Beneficiary | Investments    
Variable Interest Entity [Line Items]    
VIE, liabilities 0 0
Measured at NAV | Variable Interest Entity, Not Primary Beneficiary | Fair Value, Recurring | Indirect investments    
Variable Interest Entity [Line Items]    
Other investments $ 9,000,000 $ 14,000,000