v3.26.1
INVESTMENT SECURITIES - Schedule of Investment Securities Maturity Information (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Investment securities available for sale    
Non-amortizing securities maturing in one year or less, amortized cost $ 6,393 $ 4,893
Non-amortizing securities maturing in after one through five years, amortized cost 6,162 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 33,663 31,952
Non-amortizing securities maturing in one year or less, fair value 6,406 4,914
Non-amortizing securities maturing in after one through five years, fair value 6,150 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 33,314 31,790
Investment securities held to maturity    
Non-amortizing securities maturing in one year or less, amortized cost 369 307
Non-amortizing securities maturing in after one through five years, amortized cost 1,473 1,434
Non-amortizing securities maturing in after five through 10 years, amortized cost 0 119
Amortized Cost 9,542 9,647
Non-amortizing securities maturing in one year or less, fair value 364 303
Non-amortizing securities maturing in after one through five years, fair value 1,388 1,360
Non-amortizing securities maturing in after five through 10 years, fair value 0 107
Investment securities held to maturity, cost, fair value 8,360 8,491
Government agency    
Investment securities available for sale    
Without single maturity date, amortized cost 39 44
Without single maturity date, fair value 38 43
Residential mortgage-backed securities    
Investment securities available for sale    
Without single maturity date, amortized cost 17,782 17,683
Without single maturity date, fair value 17,595 17,623
Investment securities held to maturity    
Without single maturity date, amortized cost 4,395 4,450
Without single maturity date, fair value 3,926 3,992
Commercial mortgage-backed securities    
Investment securities available for sale    
Without single maturity date, amortized cost 3,259 3,444
Without single maturity date, fair value 3,099 3,299
Investment securities held to maturity    
Without single maturity date, amortized cost 3,305 3,337
Without single maturity date, fair value $ 2,682 $ 2,729