Segment Information - Pre-tax income (loss) from exited business (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2022
Pre-tax income (loss) from exited business:
Change in fair value of funds withheld embedded derivative	$ 1,237.7	$ 4,305.0
Net realized capital gains (losses) on funds withheld assets	8.5	697.5
Reconciling Items
Pre-tax income (loss) from exited business:
Change in fair value of funds withheld embedded derivative	1,237.7	4,305.0
Net realized capital gains (losses) on funds withheld assets	8.5	697.5
Strategic review costs and impacts on pre-tax income (loss)	(27.6)	(95.0)
Amortization of reinsurance gain (loss)	(18.8)	(60.2)
Impacts to actuarial balances of reinsured business	68.8	39.8
Total pre-tax income (loss) from exited business	$ 1,268.6	$ 4,887.1

Represents information pertaining to amortization of reinsurance gain (loss).

No definition available.

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The amount of change in fair value of funds withheld embedded derivative.

No definition available.

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Amount of realized capital gains (losses) on funds withheld assets.

No definition available.

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Represents information pertaining to impacts to actuarial balances of reinsured business.

No definition available.

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No definition available.

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The sum of income (expense), before income taxes for exited business.

No definition available.

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The impact on pre-tax income of strategic review costs and impacts.

No definition available.

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