v3.26.1
INVESTMENT SECURITIES - Schedule of Amortized Cost and Fair Value of Securities, by Contractual Maturities (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Amortized Cost    
Available for sale, due in one year or less, amortized cost $ 205  
Available for sale, due after one year but within five years, amortized cost 382  
Available for sale, due after five years but within ten years, amortized cost 138  
Available for sale, due after ten years, amortized cost 15  
Available for sale, with contractual maturities, amortized cost 740  
Amortized Cost 3,854 $ 3,783
Fair Value    
Available for sale, due in one year or less, fair value 205  
Available for sale, due after one year but within five years, fair value 380  
Available for sale, due after five years but within ten years, fair value 137  
Available for sale, due after ten years, fair value 15  
Available for sale, with contractual maturities, fair value 737  
Fair value 3,775 3,727
Amortized Cost    
Held to maturity, due in one year or less, amortized cost 8  
Held to maturity, due after one year but within five years, amortized cost 95  
Held to maturity, due after five years but within ten years, amortized cost 318  
Held to maturity, due after ten years, amortized cost 586  
Held to maturity, with contractual maturities, amortized cost 1,007  
Amortized Cost 4,183 4,117
Fair Value    
Held to maturity, due in one year or less, fair value 8  
Held to maturity, due after one year but within five years, fair value 92  
Held to maturity, due after five years but within ten years, fair value 299  
Held to maturity, due after ten years, fair value 528  
Held to maturity, with contractual maturities, fair value 927  
Fair Value 3,972 3,941
Agency MBS    
Amortized Cost    
Available-for-sale, amortized cost 824  
Amortized Cost 824 801
Fair Value    
Available for sale, fair value 816  
Fair value 816 800
Amortized Cost    
Held to maturity, amortized cost 751  
Amortized Cost 751 784
Fair Value    
Held to maturity, fair value 695  
Fair Value 695 731
Agency CMO    
Amortized Cost    
Available-for-sale, amortized cost 631  
Amortized Cost 631 662
Fair Value    
Available for sale, fair value 568  
Fair value 568 601
Amortized Cost    
Held to maturity, amortized cost 588  
Amortized Cost 588 612
Fair Value    
Held to maturity, fair value 523  
Fair Value 523 550
Agency commercial MBS    
Amortized Cost    
Available-for-sale, amortized cost 1,659  
Amortized Cost 1,659 1,595
Fair Value    
Available for sale, fair value 1,654  
Fair value 1,654 1,599
Amortized Cost    
Held to maturity, amortized cost 1,837  
Amortized Cost 1,837 1,715
Fair Value    
Held to maturity, fair value 1,827  
Fair Value $ 1,827 $ 1,714