v3.26.3
INVESTMENT SECURITIES (Contractual Maturities Debt Securities) (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Amortized cost    
Available-for-sale $ 10,349 $ 10,353
Due in one year or less 198  
Due after one year through five years 1,155  
Due after five years through ten years 3,980  
Due after ten years $ 5,016  
Average yield    
Total debt securities 2.57%  
Due in one year or less 3.62%  
Due after one year through five years 2.98%  
Due after five years through ten years 2.70%  
Due after ten years 2.32%  
Amortized cost    
Total debt securities $ 8,268  
Due in one year or less 33  
Due after one year through five years 156  
Due after five years through ten years 155  
Due after ten years $ 7,924  
Average yield    
Total debt securities 2.20%  
Due in one year or less 3.53%  
Due after one year through five years 2.51%  
Due after five years through ten years 3.65%  
Due after ten years 2.16%  
Amortized cost    
Total investment securities $ 18,617 19,220
Due in one year or less 231  
Due after one year through five years 1,311  
Due after five years through ten years 4,135  
Due after ten years $ 12,940  
Average yield    
Total debt securities 2.40%  
Due in one year or less 3.60%  
Due after one year through five years 2.92%  
Due after five years through ten years 2.74%  
Due after ten years 2.22%  
U.S. Treasury securities    
Amortized cost    
Available-for-sale $ 2,292 1,500
Due in one year or less 100  
Due after one year through five years 397  
Due after five years through ten years 1,394  
Due after ten years $ 401  
Average yield    
Total debt securities 3.92%  
Due in one year or less 4.05%  
Due after one year through five years 4.22%  
Due after five years through ten years 4.27%  
Due after ten years 2.35%  
Agency securities    
Amortized cost    
Available-for-sale $ 260 313
Due in one year or less 8  
Due after one year through five years 57  
Due after five years through ten years 124  
Due after ten years $ 71  
Average yield    
Total debt securities 3.50%  
Due in one year or less 2.51%  
Due after one year through five years 4.21%  
Due after five years through ten years 3.28%  
Due after ten years 3.42%  
Amortized cost    
Total debt securities $ 127  
Due in one year or less 0  
Due after one year through five years 0  
Due after five years through ten years 77  
Due after ten years $ 50  
Average yield    
Total debt securities 4.16%  
Due in one year or less 0.00%  
Due after one year through five years 0.00%  
Due after five years through ten years 3.52%  
Due after ten years 5.14%  
Agency guaranteed mortgage-backed securities    
Amortized cost    
Available-for-sale $ 6,631 7,207
Due in one year or less 34  
Due after one year through five years 302  
Due after five years through ten years 1,954  
Due after ten years $ 4,341  
Average yield    
Total debt securities 2.06%  
Due in one year or less 3.61%  
Due after one year through five years 2.27%  
Due after five years through ten years 1.67%  
Due after ten years 2.21%  
Amortized cost    
Total debt securities $ 7,904  
Due in one year or less 0  
Due after one year through five years 35  
Due after five years through ten years 0  
Due after ten years $ 7,869  
Average yield    
Total debt securities 2.14%  
Due in one year or less 0.00%  
Due after one year through five years 1.90%  
Due after five years through ten years 0.00%  
Due after ten years 2.14%  
Small Business Administration loan-backed securities    
Amortized cost    
Available-for-sale $ 283 355
Due in one year or less 0  
Due after one year through five years 16  
Due after five years through ten years 92  
Due after ten years $ 175  
Average yield    
Total debt securities 3.96%  
Due in one year or less 0.00%  
Due after one year through five years 4.84%  
Due after five years through ten years 3.50%  
Due after ten years 4.12%  
Municipal securities    
Amortized cost    
Available-for-sale $ 858 953
Due in one year or less 56  
Due after one year through five years 373  
Due after five years through ten years 416  
Due after ten years $ 13  
Average yield    
Total debt securities 1.95%  
Due in one year or less 3.00%  
Due after one year through five years 1.78%  
Due after five years through ten years 1.95%  
Due after ten years 2.46%  
Amortized cost    
Total debt securities $ 237  
Due in one year or less 33  
Due after one year through five years 121  
Due after five years through ten years 78  
Due after ten years $ 5  
Average yield    
Total debt securities 3.26%  
Due in one year or less 3.53%  
Due after one year through five years 2.68%  
Due after five years through ten years 3.78%  
Due after ten years 7.36%  
Other debt securities    
Amortized cost    
Available-for-sale $ 25 $ 25
Due in one year or less 0  
Due after one year through five years 10  
Due after five years through ten years 0  
Due after ten years $ 15  
Average yield    
Total debt securities 7.81%  
Due in one year or less 0.00%  
Due after one year through five years 9.50%  
Due after five years through ten years 0.00%  
Due after ten years 6.69%