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Managed Investment Entities - Narrative (Details) $ in Millions | 1 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
May 31, 2022 USD ($) collateralizedloanobligation | Sep. 30, 2022 USD ($) collateralizedloanobligation | Dec. 31, 2021 USD ($) | Sep. 30, 2021 USD ($)
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 |  | 14 |  |
Difference between aggregate unpaid principal balance and fair value of CLOs' fixed maturity investments |  | $ 366 | $ 72 |
Difference between aggregate unpaid principal balance and carrying value of CLOs' debt |  | 448 | 187 |
Carrying amount of CLO loans in default |  | 4 | 9 |
Aggregate unpaid principal balance of variable interest entity loans in default |  | 12 | 18 |
Available for sale (AFS) fixed maturities |  | 10,034 | 10,357 |
Number Of Collateralized Loan Obligation Entities Formed During The Period | collateralizedloanobligation | 1 |  |  |
Collateralized loan obligations |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Available for sale (AFS) fixed maturities |  | 1,806 | 1,643 |
Collateralized loan obligations | Managed by third parties |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Available for sale (AFS) fixed maturities |  | 1,810 | 1,640 |
Variable interest entity, primary beneficiary |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Investment in CLO tranches |  | 97 | $ 76 |
Variable interest entity, primary beneficiary | Subordinated Debt Obligations |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Investment in CLO tranches |  | 62 |  |
New collateralized loan obligation temporary warehousing entities |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Amount invested in a temporary warehousing entity |  | $ 12 |  | $ 40
New Collateralized Loan Obligation Entities |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Face Value Of Liabilities Issued By Managed Investment Entities On Issuance Date | $ 404 |  |  |
Face Amount Of Managed Investment Entities Liabilities Purchased At Issuance Date | $ 13 |  |  |

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