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Contractholder Funds - Schedule of Reconciliation to Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Policyholder Account Balance [Line Items] |  |
Contractholder funds | $ 57,823 | $ 56,404
Indexed annuities |  |
Policyholder Account Balance [Line Items] |  |
Contractholder funds | 30,925 | 30,454
Fixed rate annuities |  |
Policyholder Account Balance [Line Items] |  |
Contractholder funds | 17,885 | 17,442
Immediate annuities |  |
Policyholder Account Balance [Line Items] |  |
Contractholder funds | 283 | 286
Universal Life |  |
Policyholder Account Balance [Line Items] |  |
Contractholder funds | 2,982 | 2,896
Traditional Life |  |
Policyholder Account Balance [Line Items] |  |
Contractholder funds | 5 | 5
FABN |  |
Policyholder Account Balance [Line Items] |  |
Contractholder funds | 2,836 | 2,463
FHLB |  |
Policyholder Account Balance [Line Items] |  |
Contractholder funds | 2,901 | 2,852
PRT |  |
Policyholder Account Balance [Line Items] |  |
Contractholder funds | $ 6 | $ 6

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