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Fair Value Of Financial Instruments (Schedule of Mortgage Loans With Election Of Fair Value Option) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Fair value | $ 487 | $ 739
Commercial [Member] |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Fair value | 487 | 739
Aggregate contractual principal | $ 514 | $ 742

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- Definition Fair Value Option, Aggregate contractual principal + References No definition available. + Details
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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 Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI https://asc.fasb.org/subtopic&trid=2196772 + Details
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- Details
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