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INVESTMENTS - Equity Securities (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract] |  |  |  |
Net investment gains (losses) recognized during the period on securities held at the end of the period | $ (33) | $ (48) | $ (143) | $ (8)
Net investment gains (losses) recognized on securities sold during the period | 0 | 43 | (11) | 47
Unrealized and realized gains (losses) on equity securities | $ (33) | $ (5) | $ (154) | $ 39

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- Definition Net Investment Income (Loss), Equity Securities, Change in Unrealized Holding Gain (Loss) + References No definition available. + Details
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- Definition Net Realized and Unrealized Gain (Loss) on Equity Securities + References No definition available. + Details
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- Definition Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126980263&loc=SL75117546-209714 + Details
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- References No definition available. + Details
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