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DAC, VOBA, DSI and DFEL - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract] |  |  |
DAC amortization | $ 1,000 | $ 987 | $ 964
VOBA amortization | 48 | 53 | 60
DSI amortization | 17 | 19 | 19
DFEL amortization | $ 311 | $ 288 | $ 257

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