v3.26.1
Reserves for Future Policy Benefits and Claims Payable - Schedule of Undiscounted and Discounted Expected Future Gross Premiums (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Payout Annuities    
Liability for Future Policy Benefit, Activity [Line Items]    
Expected future benefit payments, undiscounted $ 1,557 $ 1,547
Expected future benefit payments, discounted 1,050 1,059
Expected future gross premiums, undiscounted 0 0
Expected future gross premiums, discounted 0 0
Closed Block Life    
Liability for Future Policy Benefit, Activity [Line Items]    
Expected future benefit payments, undiscounted 6,720 6,875
Expected future benefit payments, discounted 4,540 4,696
Expected future gross premiums, undiscounted 3,711 3,810
Expected future gross premiums, discounted 2,332 2,429
Closed Block Annuity    
Liability for Future Policy Benefit, Activity [Line Items]    
Expected future benefit payments, undiscounted 4,530 4,618
Expected future benefit payments, discounted 2,999 3,101
Expected future gross premiums, undiscounted 0 0
Expected future gross premiums, discounted $ 0 $ 0