v3.25.4
Securitization Activities - Firms Continuing Involvement in Securitization Entities to Which Firm Sold Assets (Detail) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]    
Outstanding Principal Amount $ 192,909 $ 138,739
Retained Interests 6,458 5,848
Purchased Interests 90 76
Retained interest 6,370 5,780
U.S. agency obligations    
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]    
Outstanding Principal Amount 62,433 34,049
Retained Interests 3,169 3,053
Purchased Interests 0 0
Residential mortgages    
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]    
Outstanding Principal Amount 38,605 33,069
Retained Interests 1,630 1,357
Purchased Interests 37 14
Commercial mortgages    
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]    
Outstanding Principal Amount 77,967 59,562
Retained Interests 1,148 945
Purchased Interests 39 57
Corporate debt and other asset-backed    
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]    
Outstanding Principal Amount 13,904 12,059
Retained Interests 511 493
Purchased Interests $ 14 $ 5