v3.26.1
Variable Interest Entities and Securitizations - Carrying Amount of Consolidated and Unconsolidated VIEs (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Variable Interest Entity [Line Items]    
Carrying Amount of Assets $ 682,905 $ 669,009
Carrying Amount of Liabilities 570,644 555,393
Consolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 31,632 35,070
Carrying Amount of Liabilities 11,683 13,277
Unconsolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 7,888 7,922
Carrying Amount of Liabilities 2,302 2,382
Maximum Exposure to Loss 7,888 7,922
Affordable housing entities    
Variable Interest Entity [Line Items]    
VIE, nonconsolidated, carrying amount of assets included in certain investment structures 3,100 3,000
VIE, nonconsolidated, carrying amount of liabilities included in certain investment structures 1,200 1,200
Affordable housing entities | Consolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 428 469
Carrying Amount of Liabilities 134 167
Affordable housing entities | Unconsolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 6,517 6,485
Carrying Amount of Liabilities 2,134 2,204
Maximum Exposure to Loss 6,517 6,485
Entities that provide capital to low-income and rural communities | Consolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 2,998 2,942
Carrying Amount of Liabilities 10 10
Entities that provide capital to low-income and rural communities | Unconsolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 44 48
Carrying Amount of Liabilities 22 24
Maximum Exposure to Loss 44 48
Other | Consolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 0 0
Carrying Amount of Liabilities 0 0
Other | Unconsolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 1,327 1,389
Carrying Amount of Liabilities 146 154
Maximum Exposure to Loss 1,327 1,389
Total other VIEs | Consolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 3,426 3,411
Carrying Amount of Liabilities 144 177
Total other VIEs | Unconsolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 7,888 7,922
Carrying Amount of Liabilities 2,302 2,382
Maximum Exposure to Loss 7,888 7,922
Credit card loan securitizations | Consolidated    
Variable Interest Entity [Line Items]    
Carrying Amount of Assets 25,269 28,208
Carrying Amount of Liabilities 9,230 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 2,937 3,451
Carrying Amount of Liabilities 2,309 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 28,206 31,659
Carrying Amount of Liabilities 11,539 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