v3.26.3
Derivative Financial Instruments and Off-balance Sheet Financial Instruments - Schedule of OTC Derivatives Counterparty Credit Exposure by Counterparty Credit Rating (Details)
$ in Millions
Sep. 30, 2026
USD ($)
counter-party
Dec. 31, 2025
USD ($)
counter-party
Credit Derivatives    
Number of counter-parties | counter-party 3 1
Notional amount $ 638 $ 37
Credit exposure 5 0
Exposure, net of collateral $ 0 $ 0
AA-    
Credit Derivatives    
Number of counter-parties | counter-party 1 1
Notional amount $ 276 $ 37
Credit exposure 4 0
Exposure, net of collateral $ 0 $ 0
A+    
Credit Derivatives    
Number of counter-parties | counter-party 2 0
Notional amount $ 362 $ 0
Credit exposure 1 0
Exposure, net of collateral $ 0 $ 0