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INVESTMENTS - Equity Securities (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Investments, Debt and Equity Securities [Abstract] |  |  |  |
Net investment gains (losses) recognized during the period on securities held at the end of the period | $ 5 | $ (70) | $ 2 | $ (110)
Net investment gains (losses) recognized on securities sold during the period | (3) | 2 | (3) | (11)
Unrealized and realized gains (losses) on equity securities | $ 2 | $ (68) | $ (1) | $ (121)

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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/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(3)(d)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483586/944-220-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479536/321-10-50-4 + Details
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- References No definition available. + Details
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