v3.26.1
INVESTMENT SECURITIES (Contractual Maturities Debt Securities) (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Amortized cost    
Available-for-sale $ 10,383 $ 10,353
Due in one year or less 201  
Due after one year through five years 863  
Due after five years through ten years 3,709  
Due after ten years $ 5,610  
Average yield    
Total debt securities 2.48%  
Due in one year or less 3.49%  
Due after one year through five years 2.90%  
Due after five years through ten years 2.60%  
Due after ten years 2.30%  
Amortized cost    
Total debt securities $ 8,688  
Due in one year or less 30  
Due after one year through five years 164  
Due after five years through ten years 176  
Due after ten years $ 8,318  
Average yield    
Total debt securities 1.91%  
Due in one year or less 2.88%  
Due after one year through five years 2.62%  
Due after five years through ten years 3.68%  
Due after ten years 1.86%  
Amortized cost    
Total investment securities $ 19,071 19,220
Due in one year or less 231  
Due after one year through five years 1,027  
Due after five years through ten years 3,885  
Due after ten years $ 13,928  
Average yield    
Total debt securities 2.22%  
Due in one year or less 3.41%  
Due after one year through five years 2.85%  
Due after five years through ten years 2.65%  
Due after ten years 2.03%  
U.S. Treasury securities    
Amortized cost    
Available-for-sale $ 1,799 1,500
Due in one year or less 100  
Due after one year through five years 201  
Due after five years through ten years 1,097  
Due after ten years $ 401  
Average yield    
Total debt securities 3.76%  
Due in one year or less 4.04%  
Due after one year through five years 3.99%  
Due after five years through ten years 4.20%  
Due after ten years 2.35%  
Agency securities    
Amortized cost    
Available-for-sale $ 294 313
Due in one year or less 0  
Due after one year through five years 60  
Due after five years through ten years 144  
Due after ten years $ 90  
Average yield    
Total debt securities 3.33%  
Due in one year or less 0.00%  
Due after one year through five years 4.04%  
Due after five years through ten years 2.99%  
Due after ten years 3.39%  
Amortized cost    
Total debt securities $ 134  
Due in one year or less 0  
Due after one year through five years 0  
Due after five years through ten years 82  
Due after ten years $ 52  
Average yield    
Total debt securities 4.17%  
Due in one year or less 0.00%  
Due after one year through five years 0.00%  
Due after five years through ten years 3.54%  
Due after ten years 5.16%  
Agency guaranteed mortgage-backed securities    
Amortized cost    
Available-for-sale $ 7,017 7,207
Due in one year or less 12  
Due after one year through five years 253  
Due after five years through ten years 1,877  
Due after ten years $ 4,875  
Average yield    
Total debt securities 2.08%  
Due in one year or less 1.62%  
Due after one year through five years 2.72%  
Due after five years through ten years 1.76%  
Due after ten years 2.18%  
Amortized cost    
Total debt securities $ 8,296  
Due in one year or less 0  
Due after one year through five years 33  
Due after five years through ten years 4  
Due after ten years $ 8,259  
Average yield    
Total debt securities 1.83%  
Due in one year or less 0.00%  
Due after one year through five years 1.79%  
Due after five years through ten years 1.80%  
Due after ten years 1.83%  
Small Business Administration loan-backed securities    
Amortized cost    
Available-for-sale $ 327 355
Due in one year or less 0  
Due after one year through five years 14  
Due after five years through ten years 98  
Due after ten years $ 215  
Average yield    
Total debt securities 4.00%  
Due in one year or less 0.00%  
Due after one year through five years 4.98%  
Due after five years through ten years 3.55%  
Due after ten years 4.14%  
Municipal securities    
Amortized cost    
Available-for-sale $ 921 953
Due in one year or less 89  
Due after one year through five years 325  
Due after five years through ten years 493  
Due after ten years $ 14  
Average yield    
Total debt securities 2.03%  
Due in one year or less 3.13%  
Due after one year through five years 1.86%  
Due after five years through ten years 1.93%  
Due after ten years 2.35%  
Amortized cost    
Total debt securities $ 258  
Due in one year or less 30  
Due after one year through five years 131  
Due after five years through ten years 90  
Due after ten years $ 7  
Average yield    
Total debt securities 3.28%  
Due in one year or less 2.88%  
Due after one year through five years 2.83%  
Due after five years through ten years 3.88%  
Due after ten years 5.69%  
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 7.78%  
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 6.62%