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Fair Value of Financial Instruments - Carrying Amounts of Assets and Liabilities at Estimated Fair Value Measured on a Recurring Basis (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
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Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | $ 42,373 | $ 33,095 |
Derivative investments | 797 | 244 |
Market risk benefits assets | 88 | 117 | $ 41
Total financial assets at fair value | 1,312 | 1,112 |
Derivatives: |  |  |
Market risk benefits liability | 403 | 282 | $ 469
Level 1 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Cash and cash equivalents | 2,767 | 2,286 |
Derivative investments | 0 | 0 |
Investment in unconsolidated affiliates | 0 |  |
Short term investments | 2,111 | 2,590 |
Market risk benefits assets | 0 | 0 |
Total financial assets at fair value | 6,566 | 6,210 |
Derivatives: |  |  |
Market risk benefits liability | 0 | 0 |
Total financial liabilities at fair value | 1 | 0 |
Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Cash and cash equivalents | 0 | 0 |
Derivative investments | 740 | 244 |
Investment in unconsolidated affiliates | 0 |  |
Short term investments | 8 | 0 |
Market risk benefits assets | 0 | 0 |
Total financial assets at fair value | 33,703 | 25,720 |
Derivatives: |  |  |
Market risk benefits liability | 0 | 0 |
Total financial liabilities at fair value | 0 | 0 |
Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Cash and cash equivalents | 0 | 0 |
Derivative investments | 57 | 0 |
Investment in unconsolidated affiliates | 285 |  |
Short term investments | 0 | 0 |
Market risk benefits assets | 88 | 117 |
Total financial assets at fair value | 9,677 | 8,286 |
Derivatives: |  |  |
Market risk benefits liability | 403 | 282 |
Total financial liabilities at fair value | 4,661 | 3,397 |
NAV |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Total financial assets at fair value | 59 | 47 |
Total Estimated Fair Value |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Cash and cash equivalents | 2,767 | 2,286 |
Derivative investments | 797 | 244 |
Investment in unconsolidated affiliates | 285 |  |
Short term investments | 2,119 | 2,590 |
Market risk benefits assets | 88 | 117 |
Total financial assets at fair value | 50,005 | 40,263 |
Derivatives: |  |  |
Market risk benefits liability | 403 | 282 |
Total financial liabilities at fair value | 4,662 | 3,397 |
Reinsurance related embedded derivatives | Level 1 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative investments | 0 |  |
Reinsurance related embedded derivatives | Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative investments | 152 |  |
Reinsurance related embedded derivatives | Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative investments | 0 |  |
Reinsurance related embedded derivatives | Total Estimated Fair Value |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative investments | 152 |  |
FIA/ IUL embedded derivatives, included in contractholder funds | Level 1 |  |  |
Derivatives: |  |  |
Derivative liability | 0 | 0 |
FIA/ IUL embedded derivatives, included in contractholder funds | Level 2 |  |  |
Derivatives: |  |  |
Derivative liability | 0 | 0 |
FIA/ IUL embedded derivatives, included in contractholder funds | Level 3 |  |  |
Derivatives: |  |  |
Derivative liability | 4,258 | 3,115 |
FIA/ IUL embedded derivatives, included in contractholder funds | Total Estimated Fair Value |  |  |
Derivatives: |  |  |
Derivative liability | 4,258 | 3,115 |
Reinsurance related embedded derivative, included in other assets | Level 1 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative investments |  | 0 |
Reinsurance related embedded derivative, included in other assets | Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative investments |  | 279 |
Reinsurance related embedded derivative, included in other assets | Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative investments |  | 0 |
Reinsurance related embedded derivative, included in other assets | Total Estimated Fair Value |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Derivative investments |  | 279 |
Futures contracts | Level 1 |  |  |
Derivatives: |  |  |
Derivative liability | 1 |  |
Futures contracts | Level 2 |  |  |
Derivatives: |  |  |
Derivative liability | 0 |  |
Futures contracts | Level 3 |  |  |
Derivatives: |  |  |
Derivative liability | 0 |  |
Futures contracts | Total Estimated Fair Value |  |  |
Derivatives: |  |  |
Derivative liability | 1 |  |
Asset-backed securities |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 14,342 | 11,467 |
Asset-backed securities | Level 1 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 0 | 0 |
Asset-backed securities | Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 7,220 | 5,204 |
Asset-backed securities | Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 7,122 | 6,263 |
Asset-backed securities | Total Estimated Fair Value |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 14,342 | 11,467 |
Commercial mortgage-backed securities |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 4,475 | 3,063 |
Commercial mortgage-backed securities | Level 1 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 0 | 0 |
Commercial mortgage-backed securities | Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 4,457 | 3,026 |
Commercial mortgage-backed securities | Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 18 | 37 |
Commercial mortgage-backed securities | Total Estimated Fair Value |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 4,475 | 3,063 |
Corporates |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 17,896 | 14,337 |
Corporates | Level 1 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 25 | 40 |
Corporates | Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 15,892 | 12,857 |
Corporates | Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 1,979 | 1,440 |
Corporates | Total Estimated Fair Value |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 17,896 | 14,337 |
Hybrids |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 618 | 731 |
Hybrids | Level 1 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 95 | 93 |
Hybrids | Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 523 | 638 |
Hybrids | Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 0 | 0 |
Hybrids | Total Estimated Fair Value |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 618 | 731 |
Municipals | Level 1 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 0 | 0 |
Municipals | Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 1,562 | 1,431 |
Municipals | Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 49 | 29 |
Municipals | Total Estimated Fair Value |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 1,611 | 1,460 |
Residential mortgage-backed securities |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 2,429 | 1,527 |
Residential mortgage-backed securities | Level 1 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 0 | 0 |
Residential mortgage-backed securities | Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 2,426 | 1,225 |
Residential mortgage-backed securities | Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 3 | 302 |
Residential mortgage-backed securities | Total Estimated Fair Value |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 2,429 | 1,527 |
U.S. Government |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 678 | 271 |
U.S. Government | Level 1 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 662 | 260 |
U.S. Government | Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 16 | 11 |
U.S. Government | Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 0 | 0 |
U.S. Government | Total Estimated Fair Value |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 678 | 271 |
Foreign Governments |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 324 | 239 |
Foreign Governments | Level 1 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 0 | 0 |
Foreign Governments | Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 308 | 223 |
Foreign Governments | Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 16 | 16 |
Foreign Governments | Total Estimated Fair Value |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Fixed maturity securities available-for-sale | 324 | 239 |
Equity securities | Level 1 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Equity securities | 692 | 621 |
Equity securities | Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Equity securities | 0 | 0 |
Equity securities | Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Equity securities | 15 | 10 |
Equity securities | NAV |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Equity securities | 59 | 47 |
Equity securities | Total Estimated Fair Value |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Equity securities | 766 | 678 |
Preferred securities |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Equity securities | 621 | 903 |
Preferred securities | Level 1 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Equity securities | 214 | 320 |
Preferred securities | Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Equity securities | 399 | 582 |
Preferred securities | Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Equity securities | 8 | 1 |
Preferred securities | Total Estimated Fair Value |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Equity securities | 621 | 903 |
Investment in unconsolidated affiliates | Level 1 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Investment in unconsolidated affiliates |  | 0 |
Investment in unconsolidated affiliates | Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Investment in unconsolidated affiliates |  | 0 |
Investment in unconsolidated affiliates | Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Investment in unconsolidated affiliates |  | 23 |
Investment in unconsolidated affiliates | Total Estimated Fair Value |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Investment in unconsolidated affiliates |  | 23 |
Other long-term investments | Level 1 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Other long-term investments | 0 | 0 |
Other long-term investments | Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Other long-term investments | 0 | 0 |
Other long-term investments | Level 3 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Other long-term investments | 37 | 48 |
Other long-term investments | Total Estimated Fair Value |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Other long-term investments | $ 37 | $ 48 |

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. 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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. 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