v3.26.1
Variable Interest Entities and Securitizations - Carrying Amount of Consolidated and Unconsolidated VIEs (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Variable Interest Entity [Line Items]    
Carrying Amount of Assets $ 673,835 $ 669,009
Carrying Amount of Liabilities 560,042 555,393
Consolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 29,965 35,070
Carrying Amount of Liabilities 8,902 13,277
Unconsolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 8,390 7,922
Carrying Amount of Liabilities 2,692 2,382
Maximum Exposure to Loss 8,390 7,922
Affordable housing entities    
Variable Interest Entity [Line Items]    
VIE, nonconsolidated, carrying amount of assets included in certain investment structures 3,400 3,000
VIE, nonconsolidated, carrying amount of liabilities included in certain investment structures 1,500 1,200
Affordable housing entities | Consolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 441 469
Carrying Amount of Liabilities 117 167
Affordable housing entities | Unconsolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 6,947 6,485
Carrying Amount of Liabilities 2,508 2,204
Maximum Exposure to Loss 6,947 6,485
Entities that provide capital to low-income and rural communities | Consolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 3,546 2,942
Carrying Amount of Liabilities 11 10
Entities that provide capital to low-income and rural communities | Unconsolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 40 48
Carrying Amount of Liabilities 22 24
Maximum Exposure to Loss 40 48
Other investments | Consolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 0 0
Carrying Amount of Liabilities 0 0
Other investments | Unconsolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 1,403 1,389
Carrying Amount of Liabilities 162 154
Maximum Exposure to Loss 1,403 1,389
Total other VIEs | Consolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 3,987 3,411
Carrying Amount of Liabilities 128 177
Total other VIEs | Unconsolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 8,390 7,922
Carrying Amount of Liabilities 2,692 2,382
Maximum Exposure to Loss 8,390 7,922
Credit card loan securitizations | Consolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 23,861 28,208
Carrying Amount of Liabilities 7,029 10,478
Credit card loan securitizations | Unconsolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 0 0
Carrying Amount of Liabilities 0 0
Maximum Exposure to Loss 0 0
Auto loan securitizations | Consolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 2,117 3,451
Carrying Amount of Liabilities 1,745 2,622
Auto loan securitizations | Unconsolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 0 0
Carrying Amount of Liabilities 0 0
Maximum Exposure to Loss 0 0
Total securitization-related VIEs | Consolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 25,978 31,659
Carrying Amount of Liabilities 8,774 13,100
Total securitization-related VIEs | Unconsolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 0 0
Carrying Amount of Liabilities 0 0
Maximum Exposure to Loss $ 0 $ 0