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Investments (Schedule Of Average Carrying Value Of Impaired Mortgage Loans On Real Estate) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Information about impaired mortgage loans on real estate |  |  |
Average carrying value for impaired mortgage loans on real estate | $ 16 | $ 32 | $ 21

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Balance Type: | debit
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- References No definition available. + Details
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Period Type: | duration