v3.26.1
Fair Value Hierarchy - Financial Assets and Financial Liabilities by Level (Detail) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Resale agreements $ 152,875 $ 126,007
Securities borrowed 61,700 51,581
Customer and other receivables 325 315
Other assets 192 180
Total 215,092 178,083
Deposits (92,248) (76,569)
Repurchase agreements (259,452) (223,384)
Securities loaned (12,586) (11,995)
Other secured financings (36,139) (27,833)
Unsecured borrowings: Short-term (65,705) (59,758)
Unsecured borrowings: Long-term (125,666) (112,683)
Other liabilities (256) (111)
Total financial liabilities at fair value (592,052) (512,333)
Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Resale agreements 0 0
Securities borrowed 0 0
Customer and other receivables 0 0
Other assets 0 0
Total 0 0
Deposits 0 0
Repurchase agreements 0 0
Securities loaned 0 0
Other secured financings 0 0
Unsecured borrowings: Short-term 0 0
Unsecured borrowings: Long-term 0 0
Other liabilities 0 0
Total financial liabilities at fair value 0 0
Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Resale agreements 152,875 126,007
Securities borrowed 61,700 51,581
Customer and other receivables 325 315
Other assets 0 0
Total 214,900 177,903
Deposits (89,186) (73,344)
Repurchase agreements (259,452) (223,384)
Securities loaned (12,586) (11,995)
Other secured financings (35,058) (27,340)
Unsecured borrowings: Short-term (57,422) (52,093)
Unsecured borrowings: Long-term (108,611) (96,858)
Other liabilities (145) (6)
Total financial liabilities at fair value (562,460) (485,020)
Level 3    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Resale agreements 0 0
Securities borrowed 0 0
Customer and other receivables 0 0
Other assets 192 180
Total 192 180
Deposits (3,062) (3,225)
Repurchase agreements 0 0
Securities loaned 0 0
Other secured financings (1,081) (493)
Unsecured borrowings: Short-term (8,283) (7,665)
Unsecured borrowings: Long-term (17,055) (15,825)
Other liabilities (111) (105)
Total financial liabilities at fair value $ (29,592) $ (27,313)