v3.26.1
Insurance and Contractholder Liabilities - Net Amount of Risk and Average Age of Contractholders (Details) - Variable Annuity - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Net Amount at Risk by Product and Guarantee [Line Items]    
Net amount at risk $ 1,019 $ 1,236
Average attained age of contractholders (weighted by exposure) 78 years 6 months 78 years