v3.26.1
Derivative and Hedging Activities - Schedule of Company's Carrying Amounts on our Hedged Loans (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
U. S. Treasury obligations    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Carrying Amount of Hedged Items $ 1,000 $ 1,016
Cumulative Amount of Fair Value Hedging Adjustments (2) 14
GSE CMOs    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Carrying Amount of Hedged Items 1,868 1,957
Cumulative Amount of Fair Value Hedging Adjustments (5) 7
GSE debentures    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Carrying Amount of Hedged Items 1,285 1,297
Cumulative Amount of Fair Value Hedging Adjustments (7) 10
Debt securities available-for-sale    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Carrying Amount of Hedged Items 4,153 4,270
Cumulative Amount of Fair Value Hedging Adjustments (14) 31
Loans and leases held-for-investment    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Carrying Amount of Hedged Items 1,705 5,073
Cumulative Amount of Fair Value Hedging Adjustments $ (9) $ (2)