v3.26.1
Investment Securities - Amortized Cost and Fair Value of Available-for-Sale Debt and Held-to-Maturity Securities (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Available-for-Sale Debt and Other, Amortized Cost    
Due in 1 year or less $ 4,010  
Due after 1 year through 5 years 21,048  
Due after 5 years through 10 years 19,350  
Due after 10 years 4,032  
Other securities 798  
Total 49,238 $ 39,107
Available-for-Sale Debt and Other, Fair Value    
Due in 1 year or less 3,986  
Due after 1 year through 5 years 20,382  
Due after 5 years through 10 years 17,447  
Due after 10 years 3,548  
Other securities 798  
Fair Value 46,161 36,159
Held-to-Maturity, Amortized Cost    
Due in 1 year or less 308  
Due after 1 year through 5 years 5,546  
Due after 5 years through 10 years 10,350  
Due after 10 years 185  
Other securities 0  
Amortized Cost 16,389 11,368
Held-to-Maturity, Fair Value    
Due in 1 year or less 308  
Due after 1 year through 5 years 5,565  
Due after 5 years through 10 years 10,279  
Due after 10 years 189  
Other securities 0  
Fair Value $ 16,341 $ 11,404