Reinsurance (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Ceded Credit Risk [Line Items]
Reinsurance, ACL	$ 317.0	$ 205.0
Maximum retention per single insured life on fixed and VUL insurance contracts	$ 20.0
Percent of mortality risk reinsured on newly issued non-term life insurance contracts	21.00%
Reinsurance recoverables, net of allowance for credit losses	$ 19,443.0	22,386.0
Realized gain (loss)	840.0	(867.0)	$ (513.0)
Swiss Re [Member]
Ceded Credit Risk [Line Items]
Trust funded to support reinsurance receivable	710,000.0	1,000.0
Reinsurance recoverables, net of allowance for credit losses		1,600.0
Protective [Member]
Ceded Credit Risk [Line Items]
Reinsurance recoverables, net of allowance for credit losses	9,400.0	11,500.0
Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments	11.5	14,000.0
Athene Holding Ltd. [Member]
Ceded Credit Risk [Line Items]
Reinsurance ACL and deposit assets	3,800.0	5,000.0
Amount of amortization, after-tax, of deferred gain on business sold	25.0	26.0	$ 29.0
Reserves associated with modified coinsurance reinsurance arrangements	3,809.0	$ 5,404.0
Letter of credit	117.0
Athene Holding Ltd. [Member] \| Over-Collateralization [Member]
Ceded Credit Risk [Line Items]
Reserves associated with modified coinsurance reinsurance arrangements	105.0
Resolution Life [Member]
Ceded Credit Risk [Line Items]
Reinsurance recoverables, net of allowance for credit losses	4,700.0
Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments	$ 4,100.0

Amount, after-tax, of deferred gain on business sold through reinsurance amortized into income during the period.

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- Definition

Maximum amount retained per single insured life issued on fixed and VUL insurance contracts.

+ References

No definition available.

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- Definition

Disclosure of the percentage of mortality risk that is reinsured on newly issued non-term life insurance contracts.

+ References

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- Definition

Amount of allowance for credit loss on reinsurance recoverable and deposit assets.

+ References

No definition available.

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- Definition

The amount of investments in support of reserves associated with modified coinsurance reinsurance arrangements for portions of the Company's deferred annuity business.

+ References

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- Definition

Funds held in trust by the reinsurer to support the sale of the Entity's reinsurance business through an indemnity reinsurance agreement.

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No definition available.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Amount of realized gain (loss) on investment in debt and equity securities.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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- Definition

Amount, after valuation allowance, recoverable under reinsurance contracts including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.

+ References

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Amount of allowance for credit loss on reinsurance recoverable.

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Amount, after valuation allowance, recoverable under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, policy benefits and policy reserves. Excludes premiums paid under reinsurance contracts.

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