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Investments - Available-For-Sale Impairment Losses Recognized in Earnings (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Available-For-Sale Impairment Losses [Abstract] |  |  |  |
Impairment losses recognized in earnings | $ 17 | $ 20 | $ 25 | $ 30
Mortgage Receivable |  |  |  |
Available-For-Sale Impairment Losses [Abstract] |  |  |  |
Gain (loss) on mortgage loans due to changes in expected credit losses | 6 | 0 | 6 | 0
Corporate and other bonds |  |  |  |
Available-For-Sale Impairment Losses [Abstract] |  |  |  |
Impairment losses recognized in earnings | 9 | 21 | 17 | 29
Asset-backed |  |  |  |
Available-For-Sale Impairment Losses [Abstract] |  |  |  |
Impairment losses recognized in earnings | $ 8 | $ (1) | $ 8 | $ 1

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- Definition Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
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- Definition Amount of other-than-temporary impairment (OTTI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), recognized in earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 8A -Publisher FASB -URI https://asc.fasb.org//1943274/2147481830/320-10-45-8A + Details
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