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LIABILITIES FOR INSURANCE PRODUCTS - CHANGES IN MARKET RISK BENEFITS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Market Risk Benefit [Roll Forward] |  |
Net liability (asset), beginning of period | $ 117.1 | $ 144.0
Effect of changes in the instrument-specific credit risk, beginning of period | 4.8 | 12.2
Balance, beginning of period, before effect of changes in the instrument-specific credit risk | 121.9 | 156.2
Issuances | 4.3 | 7.1
Interest accrual | 4.3 | 6.7
Attributed fees collected | 0.0 | 0.0
Benefit payments | 0.0 | 0.0
Effect of changes in interest rates | (30.2) | (13.1)
Effect of changes in equity markets | 0.8 | 5.9
Effect of changes in equity index volatility | 1.0 | (23.0)
Actual policyholder behavior different from expected behavior | (0.4) | (1.4)
Effect of changes in future expected policyholder behavior - other | (36.2) | (13.5)
Effect of changes in future expected policyholder behavior - risk margin | 0.2 | (1.5)
Effect of changes in assumptions | (4.3) | (1.5)
Net liability (asset), end of period, before effect of changes in the instrument-specific credit risk | 61.4 | 121.9
Effect of changes in the instrument-specific credit risk, end of period | 1.4 | 4.8
Net liability (asset), end of period | 60.0 | 117.1
Reinsurance recoverable, end of period | 0.0 | 0.0
Net liability (asset), end of period, net of reinsurance | 60.0 | 117.1
Decrease to market risk benefit | 0.0 | 0.0
Balance reported as a liability | 60.0 | 117.1
Net liability (asset) | 60.0 | 117.1
Net amount at risk | $ 21.7 | $ 44.3
Weighted average attained age of contract holders | 69 years | 69 years

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- Definition Amount, before effect of reinsurance and after accumulated increase (decrease) in instrument-specific credit risk, of contract or contract feature in long-duration contract issued by insurance entity that both protects contract holder from other-than-nominal capital market risk and exposes insurance entity to other-than-nominal capital market risk. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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 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/2003/role/disclosureRef -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 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480112/944-40-45-3 + Details
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- Definition Amount, before effect of reinsurance and cumulative increase (decrease) in instrument-specific credit risk, of contract or contract feature in long-duration contract issued by insurance entity that both protects contract holder from other-than-nominal capital market risk and exposes insurance entity to other-than-nominal capital market risk. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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 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/2003/role/disclosureRef -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 + Details
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- Definition Amount of cash outflow to policyholder from benefit payment for contract or contract feature in long-duration contract issued by insurance entity that both protects contract holder from other-than-nominal capital market risk and exposes 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 (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-13K + Details
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