v3.26.1
Investment Securities - Carrying Amounts and Fair Values of Investment Securities (Detail) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Held-to-maturity    
Amortized cost $ 1,625 $ 1,584
Gross unrealized gains 3 3
Gross unrealized (losses) (178) (160)
Investment securities - HTM, fair value 1,450 1,427
Available-for-sale debt securities    
Amortized Cost 19,343 19,303
Gross unrealized gains 24 95
Gross unrealized (losses) (666) (610)
Fair value 18,701 18,788
CLO    
Available-for-sale debt securities    
Amortized Cost 2,967 2,743
Gross unrealized gains 3 4
Gross unrealized (losses) (4) 0
Fair value 2,966 2,747
Commercial MBS issued by GSEs and GNMA    
Available-for-sale debt securities    
Amortized Cost 478 638
Gross unrealized gains 2 5
Gross unrealized (losses) (9) (8)
Fair value 471 635
Corporate debt securities    
Available-for-sale debt securities    
Amortized Cost 305 308
Gross unrealized gains 0 0
Gross unrealized (losses) (8) (11)
Fair value 297 297
Private label residential MBS    
Held-to-maturity    
Amortized cost 162 165
Gross unrealized gains 0 0
Gross unrealized (losses) (29) (28)
Investment securities - HTM, fair value 133 137
Available-for-sale debt securities    
Amortized Cost 1,155 1,185
Gross unrealized gains 0 2
Gross unrealized (losses) (150) (148)
Fair value 1,005 1,039
Residential MBS issued by GSEs and GNMA    
Available-for-sale debt securities    
Amortized Cost 7,808 7,489
Gross unrealized gains 18 52
Gross unrealized (losses) (329) (311)
Fair value 7,497 7,230
Tax-exempt    
Held-to-maturity    
Amortized cost 1,463 1,419
Gross unrealized gains 3 3
Gross unrealized (losses) (149) (132)
Investment securities - HTM, fair value 1,317 1,290
Available-for-sale debt securities    
Amortized Cost 873 879
Gross unrealized gains 0 0
Gross unrealized (losses) (85) (77)
Fair value 788 802
U.S. Treasury securities    
Available-for-sale debt securities    
Amortized Cost 5,682 5,986
Gross unrealized gains 1 31
Gross unrealized (losses) (73) (47)
Fair value 5,610 5,970
Other    
Available-for-sale debt securities    
Amortized Cost 75 75
Gross unrealized gains 0 1
Gross unrealized (losses) (8) (8)
Fair value $ 67 $ 68