v3.25.0.1
Fair Value - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Change in unrealized capital losses included in OCI associated with Level 3 financial assets $ 1 $ 9
Level 3 | Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Gross transfers into Level 3 0 0
Gross transfers out of Level 3 67 50
Level 3 | Recurring | Separate Accounts, financial assets    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Gross transfers into Level 3 0 0
Gross transfers out of Level 3 $ 0 $ 0