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Equity (Components of Net Unrealized Appreciation Depreciation of Balances Carried at Fair Value) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Comprehensive Income Net Of Tax [Line Items] |  |  |  |  |  |
Fixed maturity securities available-for-sale |  | $ 60,467 | [1] | $ 52,901 | [2] |
Other invested assets |  | (1,171) |  | (1,140) |  |
Deferred policy acquisition costs |  | 4,617 |  | 4,128 |  |
Accumulated Other Comprehensive Income Loss Change In Component During Period |  | 2,278 |  | (11,818) |  | $ (2,363)
Change In Net Unrealized Appreciation Depreciation [Member] |  |  |  |  |  |
Comprehensive Income Net Of Tax [Line Items] |  |  |  |  |  |
Fixed maturity securities available-for-sale |  | 2,289 |  | 11,632 |  | 2,299
Other invested assets | [3] | $ (11) |  | $ (186) |  | $ (64)
[1] | Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of December 31, 2023, the fair value of such investments was $856 million
[2] | Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of December 31, 2022, the fair value of such investments was $683 million.
[3] | Includes cash flow hedges. See Note 12 for additional information on cash flow hedges.

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