v3.26.3
INVESTMENT SECURITIES - Schedule of Investment Securities Maturity Information (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Investment securities available for sale    
Non-amortizing securities maturing in one year or less, amortized cost $ 5,439 $ 4,893
Non-amortizing securities maturing in after one through five years, amortized cost 10,395 5,853
Non-amortizing securities maturing in after five through 10 years, amortized cost 16 23
Non-amortizing securities maturing in after 10 years, amortized cost 12 12
Amortized Cost 36,827 31,952
Non-amortizing securities maturing in one year or less, fair value 5,423 4,914
Non-amortizing securities maturing in after one through five years, fair value 10,266 5,879
Non-amortizing securities maturing in after five through 10 years, fair value 14 20
Non-amortizing securities maturing in after 10 years, fair value 12 12
Investment securities available for sale, fair value 35,606 31,790
Investment securities held to maturity    
Non-amortizing securities maturing in one year or less, amortized cost 679 307
Non-amortizing securities maturing in after one through five years, amortized cost 953 1,434
Non-amortizing securities maturing in after five through 10 years, amortized cost 0 119
Amortized Cost 9,157 9,647
Non-amortizing securities maturing in one year or less, fair value 665 303
Non-amortizing securities maturing in after one through five years, fair value 866 1,360
Non-amortizing securities maturing in after five through 10 years, fair value 0 107
Investment securities held to maturity, cost, fair value 7,644 8,491
Government agency    
Investment securities available for sale    
Without single maturity date, amortized cost 29 44
Without single maturity date, fair value 28 43
Residential mortgage-backed securities    
Investment securities available for sale    
Without single maturity date, amortized cost 17,856 17,683
Without single maturity date, fair value 17,014 17,623
Investment securities held to maturity    
Without single maturity date, amortized cost 4,276 4,450
Without single maturity date, fair value 3,632 3,992
Commercial mortgage-backed securities    
Investment securities available for sale    
Without single maturity date, amortized cost 3,062 3,444
Without single maturity date, fair value 2,831 3,299
Investment securities held to maturity    
Without single maturity date, amortized cost 3,249 3,337
Without single maturity date, fair value 2,481 2,729
Other    
Investment securities available for sale    
Without single maturity date, amortized cost 18 0
Without single maturity date, fair value $ 18 $ 0