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Investments - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2022 | Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items] |  |  |
Accrued interest receivable | $ 276 | $ 276 | $ 253
FHLB collateral pledged | 3,030 | 3,030 | 2,469
Fixed maturity securities, available-for-sale securities, allowance for credit losses | 11 | $ 11 | 8
Commercial mortgage loans, percentage of investments |  | 7.00% |
Non-accrual loans | $ 69 | $ 69 | $ 72
Affiliated Entity | Equity securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Investment owned, (in shares) | 0 | 0 | 5,775,598
Investment owned, at fair value |  |  | $ 203
Shares issued in exchange (in shares) | 4,775,598 | 5,775,598 |
Aggregate consideration received | $ 85 | $ 109 |
Residential mortgage loans |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Non-accrual loans | 69 | 69 | 72
Over 90 days past due | Residential mortgage loans |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Non-accrual loans |  |  | 72
Loans in process of foreclosure | 38 | $ 38 | 39
United States |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Residential mortgage loans, location percentage |  | 100.00% |
Available-for-sale Securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Assets held by insurance regulators | $ 16,831 | $ 16,831 | $ 22,343
Residential mortgage loans |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Percentage of total investments | 6.00% | 6.00% |

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