Managed Investment Entities - Narrative (Details) $ in Millions	3 Months Ended
Mar. 31, 2022 USD ($) collateralizedloanobligation	Dec. 31, 2021 USD ($)
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	82.70%
Number of collateralized loan obligation entities \| collateralizedloanobligation	13
Difference between aggregate unpaid principal balance and fair value of CLOs' fixed maturity investments	$ 123	$ 72
Difference between aggregate unpaid principal balance and carrying value of CLOs' debt	223	187
Carrying amount of CLO loans in default	4	9
Aggregate unpaid principal balance of variable interest entity loans in default	10	18
Available for sale (AFS) fixed maturities	10,809	10,357
Collateralized loan obligations
Variable Interest Entity [Line Items]
Available for sale (AFS) fixed maturities	1,894	1,643
Collateralized loan obligations \| Managed by third parties
Variable Interest Entity [Line Items]
Available for sale (AFS) fixed maturities	1,890	1,640
Variable interest entity, primary beneficiary
Variable Interest Entity [Line Items]
Investment in CLO tranches	119	$ 76
Variable interest entity, primary beneficiary \| Subordinated Debt Obligations
Variable Interest Entity [Line Items]
Investment in CLO tranches	98
New collateralized loan obligation temporary warehousing entities
Variable Interest Entity [Line Items]
Amount invested in a temporary warehousing entity	$ 30

Aggregate unpaid principal balance of variable interest entity loans in default

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- Definition

Carrying amount of variable interest entity loans in default.

+ References

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

+ References

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- Definition

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

+ References

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- Definition

Number of collateralized loan obligation entities.

+ References

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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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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- Definition

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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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
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-Section 50
-Paragraph 5A
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