v3.24.1.u1
INVESTMENT SECURITIES - Contractual Maturities of Debt Securities Available for Sale (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Amortized Cost    
Due within one year $ 1,235  
Due after one year through five years 5,402  
Due after five years through ten years 3,259  
Due after ten years 1,230  
Mortgage and asset-backed securities 7,359  
Amortized Cost 18,485 $ 18,302
Fair Value    
Due within one year 1,229  
Due after one year through five years 5,199  
Due after five years through ten years 2,954  
Due after ten years 1,037  
Mortgage and asset-backed securities 6,658  
Fair Value $ 17,077 $ 17,008