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Deferred Policy Acquisition Costs, Value of Business Acquired and Other Intangibles (Information Regarding DSI) (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Variable Annuities |  |
Deferred Sale Inducement Cost [Line Items] |  |
Balance, beginning of period | $ 220 | $ 245
Amortization | (6) | (7)
Balance, end of period | 214 | 238
Fixed Rate Annuities |  |
Deferred Sale Inducement Cost [Line Items] |  |
Balance, beginning of period | 8 | 9
Amortization | 0 | 0
Balance, end of period | $ 8 | $ 9

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