v3.26.3
INVESTMENT SECURITIES - Schedule of Contractual Maturities of Investments in Debt Securities for HTM (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Amortized Cost    
Due within one year $ 916  
Due after 1 year but within 5 years 1,292  
Due after 5 years but within 10 years 1,147  
Due after 10 years 19,229  
Total 22,584  
Fair Value    
Due within one year 915  
Due after 1 year but within 5 years 1,270  
Due after 5 years but within 10 years 1,123  
Due after 10 years 17,424  
Total $ 20,732 $ 11,871