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v3.23.1

Investments (Changes In Allowance For Credit Losses On Mortgage Loans On Real Estate) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Balance as of beginning-of-year | $ 96 |  |
Balance as of end-of-year | 99 | $ 96 |
Unfunded Loan Commitment [Member] |  |  |
Balance as of beginning-of-year | 96 | 204 | $ 2
Additions (reductions) from provision for credit loss expense | 3 | (108) | 114
Balance as of end-of-year | 99 | 96 | 204
Accrued interest receivable excluded from credit losses | 51 | 49 | 49
Financing Receivable, Credit Loss, Expense (Reversal) |  | 4 | (2)
Commercial [Member] |  |  |
Balance as of beginning-of-year | 79 |  |
Balance as of end-of-year | 84 | 79 |
Commercial [Member] | Unfunded Loan Commitment [Member] |  |  |
Balance as of beginning-of-year | 79 | 187 |
Additions (reductions) from provision for credit loss expense | 5 | (108) | 125
Balance as of end-of-year | 84 | 79 | 187
Residential [Member] |  |  |
Balance as of beginning-of-year | 17 |  |
Balance as of end-of-year | 15 | 17 |
Residential [Member] | Unfunded Loan Commitment [Member] |  |  |
Balance as of beginning-of-year | 17 | 17 | 2
Additions (reductions) from provision for credit loss expense | (2) |  | (11)
Balance as of end-of-year | $ 15 | $ 17 | 17
Cumulative Effect, Period of Adoption, Adjustment [Member] | Unfunded Loan Commitment [Member] |  |  |
Balance as of beginning-of-year |  |  | 88
Cumulative Effect, Period of Adoption, Adjustment [Member] | Commercial [Member] | Unfunded Loan Commitment [Member] |  |  |
Balance as of beginning-of-year |  |  | 62
Cumulative Effect, Period of Adoption, Adjustment [Member] | Residential [Member] | Unfunded Loan Commitment [Member] |  |  |
Balance as of beginning-of-year |  |  | $ 26

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- Definition Amount, before allowance for credit loss, of accrued interest on financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 3B -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447 + Details
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