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Other Intangible Assets - Reconciliation of DAC to the Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
DAC	$ 3,036	$ 2,215
Indexed Annuities
Finite-Lived Intangible Assets [Line Items]
DAC	1,874	1,378
Fixed rate annuities
Finite-Lived Intangible Assets [Line Items]
DAC	376	288
Universal Life
Finite-Lived Intangible Assets [Line Items]
DAC	781	545
Funding Agreements
Finite-Lived Intangible Assets [Line Items]
DAC	4	4
PRT
Finite-Lived Intangible Assets [Line Items]
DAC	$ 1	$ 0

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