v3.26.1
Derivatives and Hedging Activities - Schedule of Credit Derivatives Sold and Held (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Credit Derivatives [Line Items]    
Notional Amount $ 3 $ 9
Payment / Performance Risk 0.00% 0.00%
Other    
Credit Derivatives [Line Items]    
Notional Amount $ 3 $ 9
Average Term (Years) 5 years 6 months 3 days 3 years 7 months 13 days
Payment / Performance Risk 3.73% 1.76%