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DERIVATIVES - SCHEDULE PRE-TAX GAINS (LOSSES) RECOGNIZED IN NET INCOME FOR DERIVATIVE INSTRUMENTS (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Derivative [Line Items] |  |
Gains on derivatives not designated as hedging instruments | $ (69.4) | $ 140.5
Net pre-tax impact | (66.6) | 72.6
Embedded derivatives |  |
Derivative [Line Items] |  |
Embedded derivatives related to fixed indexed annuities | (7.9) | (11.3)
Embedded derivatives | Fixed indexed annuities |  |
Derivative [Line Items] |  |
Embedded derivatives related to fixed indexed annuities | (2.8) | 67.9
Net investment income (loss) from policyholder and other special-purpose portfolios | Fixed indexed call options |  |
Derivative [Line Items] |  |
Gains on derivatives not designated as hedging instruments | (70.6) | 140.2
Net realized gains (losses) | Embedded derivatives | Coinsurance agreements |  |
Derivative [Line Items] |  |
Gains on derivatives not designated as hedging instruments | $ 1.2 | $ 0.3

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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 4CC -SubTopic 10 -Topic 815 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CC + Details
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- Definition Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 15 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/815-15/tableOfContent + Details
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- Definition Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A + Details
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