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ACCOUNTING FOR DERIVATIVES - SCHEDULE PRE-TAX GAINS (LOSSES) RECOGNIZED IN NET INCOME FOR DERIVATIVE INSTRUMENTS (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Derivative [Line Items]
Gains on derivatives not designated as hedging instruments	$ 38.8	$ 59.6	$ 179.3	$ 79.6
Net pre-tax impact	28.5	36.4	101.1	(8.5)
Embedded derivatives
Derivative [Line Items]
Embedded derivatives related to fixed indexed annuities			(17.1)	2.2
Embedded derivatives | Fixed indexed annuities
Derivative [Line Items]
Embedded derivatives related to fixed indexed annuities	10.3	23.2	78.2	88.1
Net investment income from policyholder and other special-purpose portfolios | Fixed indexed call options
Derivative [Line Items]
Gains on derivatives not designated as hedging instruments	38.9	61.3	179.1	79.9
Net realized gains (losses) | Embedded derivatives | Coinsurance agreements
Derivative [Line Items]
Gains on derivatives not designated as hedging instruments	$ (0.1)	$ (1.7)	$ 0.2	$ (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

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Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

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