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Nature of Operations, Basis of Presentation and Summary of Significant Accounting Policies (Narrative) (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 USD ($) item | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019
Product Information [Line Items] |  |  |  |
Estimated Contract Life UL Policies (In Years) | 40 years |  |  |
Estimated Contract Life VUL Policies (In Years) | 40 years |  |  |
Front End Load Annuity Products Assumed Life (In Years) | 25 years |  |  |
Number Of Scenarios Used Per Policy To Value A Block Of Guarantees | 100 |  |  |
Total Scenarios To Value GLB liability | item | 44,000,000 |  |  |
Dividend Expenses | $ 49 | $ 48 | $ 53 |
Other revenues | 722 | 777 | 658 |
Insurance fees | $ 6,054 | $ 6,887 | $ 6,371 |
Sales Force Intangibles [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Useful Life of Intangible Assets (In Years) | 25 years |  |  |
VOCRA [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Useful Life of Intangible Assets (In Years) | 20 years |  |  |
VODA [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Useful Life of Intangible Assets (In Years) | 13 years |  |  |
Maximum [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Estimated Contract Life Fixed and Variable Deferred Annuities (In Years) | 30 years |  |  |
Traditional Contract Acquisition Cost Amortization Period (In Years) | 30 years |  |  |
Participating Policies as a Percentage of the Face Amount of the Insurance In Force |  | 1.00% | 1.00% | 1.00%
Minimum [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Estimated Contract Life Fixed and Variable Deferred Annuities (In Years) | 15 years |  |  |
Life Insurance Segment [Member] | Maximum [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Investment Yield Assumptions for Traditional Direct Individual Life Reserves | 7.75% |  |  |
Life Insurance Segment [Member] | Minimum [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Investment Yield Assumptions for Traditional Direct Individual Life Reserves | 2.25% |  |  |
Annuities Segment [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Other revenues | $ 584 | $ 628 | $ 516 |
Annuities Segment [Member] | Maximum [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Investment Yield Assumptions for Immediate and Deferred Paid-Up Annuities | 12.15% |  |  |
Annuities Segment [Member] | Minimum [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Investment Yield Assumptions for Immediate and Deferred Paid-Up Annuities | 0.50% |  |  |
Group Protection Segment [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Other revenues | $ 203 | $ 180 | $ 177 |
Commercial [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Number of days past due to qualify as delinquent | 60 days |  |  |
Number of missed payments to qualify as delinqent | item | 2 |  |  |
Period In Which Loans No Longer Accrue Interest In Days | 90 days |  |  |
Number of missed payments to qualify loans as non-accrual | item | 3 |  |  |
Loan-to-value ratio indicating principal is greater than collateral | 100.00% |  |  |
Commercial [Member] | Maximum [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Debt-service coverage ratio indicating property income not covering debt payments | 1.0 |  |  |
Residential [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Period In Which Loans No Longer Accrue Interest In Days | 90 days |  |  |
Athene Holding Ltd. [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
No. of Years in Which Deferred Gain From Reinsurance Transaction is Recognized as Income | 20 years |  |  |

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