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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, 2023 | Mar. 31, 2022
Variable Annuities |  |
Deferred Sale Inducement Cost [Line Items] |  |
Balance, beginning of period | $ 245 | $ 272
Amortization | (7) | (7)
Balance, end of period | 238 | 265
Fixed Rate Annuities |  |
Deferred Sale Inducement Cost [Line Items] |  |
Balance, beginning of period | 9 | 10
Amortization | 0 | 0
Balance, end of period | $ 9 | $ 10

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