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Life Policy And Investment Contract Reservess (Reserve In Addition To The Account Balance Based On Expected No-Lapse Guarantee Benefits And Expected Policy Assessments) (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Liability for Future Policy Benefit, by Product Segment |  |
Life policy and investment contract reserves | $ 3,068 | $ 3,015
Life Policy Reserves |  |
Liability for Future Policy Benefit, by Product Segment |  |
Life policy and investment contract reserves | 1,597 | 1,463
Life Policy Reserves | Term Life Insurance |  |
Liability for Future Policy Benefit, by Product Segment |  |
Life policy and investment contract reserves | 1,066 | 961
Life Policy Reserves | Whole Life Insurance |  |
Liability for Future Policy Benefit, by Product Segment |  |
Life policy and investment contract reserves | 434 | 408
Life Policy Reserves | Long-Duration Insurance, Other |  |
Liability for Future Policy Benefit, by Product Segment |  |
Life policy and investment contract reserves | 97 | 94
Investment contract reserves |  |
Liability for Future Policy Benefit, by Product Segment |  |
Life policy and investment contract reserves | 1,471 | 1,552
Investment contract reserves | Deferred Fixed Annuity |  |
Liability for Future Policy Benefit, by Product Segment |  |
Life policy and investment contract reserves | 656 | 734
Investment contract reserves | Universal Life |  |
Liability for Future Policy Benefit, by Product Segment |  |
Life policy and investment contract reserves | 585 | 578
Investment contract reserves | Structured Settlement Annuity |  |
Liability for Future Policy Benefit, by Product Segment |  |
Life policy and investment contract reserves | 123 | 129
Investment contract reserves | Long-Duration Insurance, Other |  |
Liability for Future Policy Benefit, by Product Segment |  |
Life policy and investment contract reserves | $ 107 | $ 111

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of accrued obligation to policyholders that relates to insured events under long-term life insurance contracts. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(13)(a)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 25 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479250/944-40-25-11 + Details
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