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MARKET RISK BENEFITS - Schedule of Net Balance of Market Risk Benefit Asset and Liabilities (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Market Risk Benefit [Roll Forward] |  |  |
Balance, beginning of period | $ 55 | $ 114 |
Balance, beginning of period, before effect of changes in the instrument-specific credit risk | 39 | 112 |
Acquisition from business combination | 2,376 | 0 |
Derecognition | (129) | 0 |
Issuance | 3 | 35 |
Interest accrual | 24 | 3 |
Attributed fees collected | 52 | 21 |
Benefits payments | 0 | 0 |
Effect of changes in interest rates | 138 | (14) |
Effect of changes in equity markets | (24) | 6 |
Effect of changes in equity index volatility | (24) | (31) |
Effect of changes in future expected policyholder behavior | (8) | (7) |
Effect of changes in other future expected assumptions | 67 | (21) |
Balance, end of period, before the effect of changes in the instrument-specific credit risk | 2,514 | 104 |
Effect of changes in the ending instrument-specific credit risk | 58 | 14 |
Balance, end of period | 2,572 | 118 | $ 55
Less: Reinsured MRB, end of period | (618) | 0 |
Balance, end of period, net of reinsurance | 1,954 | 118 |
Net amount at risk | $ 12,051 | $ 806 |
Weighted average attained age of contract holders (years) | 71 years | 65 years |

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- Definition Amount, before tax, of accumulated other comprehensive income (loss) (AOCI) from (increase) decrease in instrument-specific credit risk on contract or contract feature in long-duration contract issued by insurance entity protecting contract holder from other-than-nominal capital market risk and exposing insurance entity to other-than-nominal capital market risk. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-7B Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29G -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29G Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 13K -Subparagraph (k) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-13K + Details
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