Managed Investment Entities - Narrative (Details) $ in Millions	12 Months Ended
Dec. 31, 2022 USD ($) collateralizedloanobligation	Dec. 31, 2021 USD ($) collateralizedloanobligation	Dec. 31, 2020 USD ($) collateralizedloanobligation
Variable Interest Entity [Line Items]
Percentage of investment of most subordinate debt tranche, Minimum	7.40%
Percentage of investment of most subordinate debt tranche, Maximum	100.00%
Number of collateralized loan obligation entities \| collateralizedloanobligation	15
Number of collateralized loan obligation entities formed during the period \| collateralizedloanobligation	2	1	1
Difference between aggregate unpaid principal balance and fair value of CLOs' fixed maturity investments	$ 339	$ 72
Difference between aggregate unpaid principal balance and fair value of CLOs' debt	413	187
Carrying amount of CLO loans in default	4	9
Aggregate unpaid principal balance of CLO loans in default	17	18
Available for sale (AFS) fixed maturities	10,095	10,357
New collateralized loan obligation entities
Variable Interest Entity [Line Items]
Face value of liabilities issued by managed investment entities on issuance date	754	408	$ 303
Face amount of managed investment entities liabilities purchased by subsidiaries at issuance date	48	14	$ 16
Variable interest entity, primary beneficiary
Variable Interest Entity [Line Items]
Aggregate fair value of investment in collateralized loan obligations	115
New Collateralized Loan Obligation Temporary Warehousing Entities
Variable Interest Entity [Line Items]
Variable Interest Entity, Primary Beneficiary, Maximum Loss Exposure, Amount	3
Subordinated debt obligations \| Variable interest entity, primary beneficiary
Variable Interest Entity [Line Items]
Aggregate fair value of investment in collateralized loan obligations	82
Collateralized loan obligations
Variable Interest Entity [Line Items]
Available for sale (AFS) fixed maturities	1,921	1,643
Collateralized loan obligations \| Managed by third parties
Variable Interest Entity [Line Items]
Available for sale (AFS) fixed maturities	$ 1,920	$ 1,640

Aggregate unpaid principal balance of variable interest entity loans in default

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Carrying amount of variable interest entity loans in default.

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Difference between aggregate unpaid principal balance and fair value of variable interest entity debt.

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Difference between aggregate unpaid principal balance and fair value of variable interest entity investments.

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Face amount of managed investment entities liabilities purchased at issuance date.

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Face value of liabilities issued by managed investment entities.

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Number of collateralized loan obligation entities.

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Number of collateralized loan obligation entities formed during the period.

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Maximum percentage of investment of most subordinate debt tranche of variable interest entity.

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Minimum percentage of investment of most subordinate debt tranche of variable interest entity.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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- Definition

The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE).

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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.

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Amount of maximum exposure to loss from involvement with consolidated variable interest entity (VIE).

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