v3.25.4
INVESTMENT SECURITIES (Contractual Maturities Debt Securities) (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Available-for-sale, Amortized cost    
Available-for-sale $ 10,353 $ 10,601
Due in one year or less 207  
Due after one year through five years 794  
Due after five years through ten years 3,382  
Due after ten years $ 5,970  
Available-for-sale, Weighted average yield    
Total debt securities 2.45%  
Due in one year or less 3.53%  
Due after one year through five years 3.01%  
Due after five years through ten years 2.54%  
Due after ten years 2.29%  
Held-to-maturity, Amortized cost    
Held-to-maturity $ 8,867  
Due in one year or less 24  
Due after one year through five years 165  
Due after five years through ten years 189  
Due after ten years $ 8,489  
Held-to-maturity, Weighted average yield    
Total debt securities 1.91%  
Due in one year or less 2.03%  
Due after one year through five years 2.69%  
Due after five years through ten years 3.55%  
Due after ten years 1.86%  
Total investment securities, Amortized cost    
Total investment securities $ 19,220 20,270
Due in one year or less 231  
Due after one year through five years 959  
Due after five years through ten years 3,571  
Due after ten years $ 14,459  
Total investment securities, Weighted average yield    
Debt Securities, Maturity, Weighted Average Yield 2.20%  
Due in one year or less 3.37%  
Due after one year through five years 2.95%  
Due after five years through ten years 2.59%  
Due after ten years 2.04%  
U.S. Treasury securities    
Available-for-sale, Amortized cost    
Available-for-sale $ 1,500 781
Due in one year or less 100  
Due after one year through five years 201  
Due after five years through ten years 798  
Due after ten years $ 401  
Available-for-sale, Weighted average yield    
Total debt securities 3.71%  
Due in one year or less 4.04%  
Due after one year through five years 3.99%  
Due after five years through ten years 4.28%  
Due after ten years 2.35%  
Agency securities    
Available-for-sale, Amortized cost    
Available-for-sale $ 313 441
Due in one year or less 0  
Due after one year through five years 56  
Due after five years through ten years 159  
Due after ten years $ 98  
Available-for-sale, Weighted average yield    
Total debt securities 3.25%  
Due in one year or less 0.00%  
Due after one year through five years 3.98%  
Due after five years through ten years 2.97%  
Due after ten years 3.30%  
Held-to-maturity, Amortized cost    
Held-to-maturity $ 137  
Due in one year or less 0  
Due after one year through five years 0  
Due after five years through ten years 76  
Due after ten years $ 61  
Held-to-maturity, Weighted average yield    
Total debt securities 4.15%  
Due in one year or less 0.00%  
Due after one year through five years 0.00%  
Due after five years through ten years 3.50%  
Due after ten years 4.96%  
Agency guaranteed mortgage-backed securities    
Available-for-sale, Amortized cost    
Available-for-sale $ 7,207 7,713
Due in one year or less 7  
Due after one year through five years 218  
Due after five years through ten years 1,778  
Due after ten years $ 5,204  
Available-for-sale, Weighted average yield    
Total debt securities 2.09%  
Due in one year or less 1.30%  
Due after one year through five years 2.91%  
Due after five years through ten years 1.83%  
Due after ten years 2.14%  
Held-to-maturity, Amortized cost    
Held-to-maturity $ 8,459  
Due in one year or less 0  
Due after one year through five years 28  
Due after five years through ten years 10  
Due after ten years $ 8,421  
Held-to-maturity, Weighted average yield    
Total debt securities 1.84%  
Due in one year or less 0.00%  
Due after one year through five years 1.45%  
Due after five years through ten years 2.78%  
Due after ten years 1.84%  
Small Business Administration loan-backed securities    
Available-for-sale, Amortized cost    
Available-for-sale $ 355 455
Due in one year or less 0  
Due after one year through five years 11  
Due after five years through ten years 106  
Due after ten years $ 238  
Available-for-sale, Weighted average yield    
Total debt securities 4.36%  
Due in one year or less 0.00%  
Due after one year through five years 5.26%  
Due after five years through ten years 3.70%  
Due after ten years 4.61%  
Municipal securities    
Available-for-sale, Amortized cost    
Available-for-sale $ 953 1,186
Due in one year or less 100  
Due after one year through five years 298  
Due after five years through ten years 541  
Due after ten years $ 14  
Available-for-sale, Weighted average yield    
Total debt securities 2.06%  
Due in one year or less 3.17%  
Due after one year through five years 1.93%  
Due after five years through ten years 1.92%  
Due after ten years 2.41%  
Held-to-maturity, Amortized cost    
Held-to-maturity $ 271  
Due in one year or less 24  
Due after one year through five years 137  
Due after five years through ten years 103  
Due after ten years $ 7  
Held-to-maturity, Weighted average yield    
Total debt securities 3.22%  
Due in one year or less 2.03%  
Due after one year through five years 2.95%  
Due after five years through ten years 3.67%  
Due after ten years 5.88%  
Other debt securities    
Available-for-sale, 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  
Available-for-sale, Weighted average yield    
Total debt securities 7.97%  
Due in one year or less 0.00%  
Due after one year through five years 9.51%  
Due after five years through ten years 0.00%  
Due after ten years 6.95%