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Transition Date Adoption Impacts (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2020
--- | --- | --- | ---
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Life policy and investment contract reserves | $ 651 | $ 665 |
Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Life policy and investment contract reserves |  |  | $ 3,560
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Life policy and investment contract reserves |  | 665 | 287
Previously Reported | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Life policy and investment contract reserves |  |  | 2,915
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Life policy and investment contract reserves |  | 640 | 217
Effect of Modified Retrospective Application Accounting Standards Update 2018-12 | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Removal of shadow adjustments |  |  | 13
Net premiums in excess of gross premiums |  |  | 15
Remeasurement at market value discount rates |  |  | 617
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Life policy and investment contract reserves |  | $ 25 |
Remeasurement at market value discount rates |  |  | 47
Other adjustments |  |  | 23
Term Life Insurance | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Life policy and investment contract reserves |  |  | 1,287
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Life policy and investment contract reserves |  |  | 162
Term Life Insurance | Previously Reported | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Life policy and investment contract reserves |  |  | 901
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Life policy and investment contract reserves |  |  | 113
Term Life Insurance | Effect of Modified Retrospective Application Accounting Standards Update 2018-12 | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Removal of shadow adjustments |  |  | 0
Net premiums in excess of gross premiums |  |  | 14
Remeasurement at market value discount rates |  |  | 372
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Remeasurement at market value discount rates |  |  | 29
Other adjustments |  |  | 20
Whole Life Insurance | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Life policy and investment contract reserves |  |  | 609
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Life policy and investment contract reserves |  |  | 45
Whole Life Insurance | Previously Reported | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Life policy and investment contract reserves |  |  | 363
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Life policy and investment contract reserves |  |  | 26
Whole Life Insurance | Effect of Modified Retrospective Application Accounting Standards Update 2018-12 | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Removal of shadow adjustments |  |  | 0
Net premiums in excess of gross premiums |  |  | 1
Remeasurement at market value discount rates |  |  | 245
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Remeasurement at market value discount rates |  |  | 18
Other adjustments |  |  | 1
Deferred Fixed Annuity | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Life policy and investment contract reserves |  |  | 761
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Life policy and investment contract reserves |  |  | 0
Deferred Fixed Annuity | Previously Reported | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Life policy and investment contract reserves |  |  | 761
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Life policy and investment contract reserves |  |  | 0
Deferred Fixed Annuity | Effect of Modified Retrospective Application Accounting Standards Update 2018-12 | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Removal of shadow adjustments |  |  | 0
Net premiums in excess of gross premiums |  |  | 0
Remeasurement at market value discount rates |  |  | 0
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Remeasurement at market value discount rates |  |  | 0
Other adjustments |  |  | 0
Universal Life | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Life policy and investment contract reserves |  |  | 567
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Life policy and investment contract reserves |  |  | 2
Universal Life | Previously Reported | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Life policy and investment contract reserves |  |  | 567
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Life policy and investment contract reserves |  |  | 0
Universal Life | Effect of Modified Retrospective Application Accounting Standards Update 2018-12 | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Removal of shadow adjustments |  |  | 0
Net premiums in excess of gross premiums |  |  | 0
Remeasurement at market value discount rates |  |  | 0
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Remeasurement at market value discount rates |  |  | 0
Other adjustments |  |  | 2
Long-Duration Insurance, Other | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Life policy and investment contract reserves |  |  | 336
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Life policy and investment contract reserves |  |  | 78
Long-Duration Insurance, Other | Previously Reported | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Life policy and investment contract reserves |  |  | 323
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Life policy and investment contract reserves |  |  | 78
Long-Duration Insurance, Other | Effect of Modified Retrospective Application Accounting Standards Update 2018-12 | Accounting Standards Update 2018-12 |  |  |
ASU 2018-12 Adoption Impacts to the life policy and investment contract reserves |  |  |
Removal of shadow adjustments |  |  | 13
Net premiums in excess of gross premiums |  |  | 0
Remeasurement at market value discount rates |  |  | 0
ASU 2018-12 Adoption Impacts to the Life Reinsurance Recoverable Assets |  |  |
Remeasurement at market value discount rates |  |  | 0
Other adjustments |  |  | $ 0

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