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Business, Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 USD ($) Segment | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Jan. 01, 2021 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |  |  |
Number of segments | Segment | 6 |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Policyholder Account Balance, Guaranteed Minimum Credit Rating | $ 221,445 | $ 219,269 |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Policyholder Account Balance, Guaranteed Minimum Credit Rating | 221,445 | 219,269 |  |  |
Deferred Sale Inducement Cost | 155 | 146 |  |  |
Property, Plant and Equipment, Capitalized Computer Software, Gross | 7,700 | 7,300 |  |  |
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment and Capitalized Computer Software | 5,100 | 4,800 |  |  |
Depreciation and Capitalized Computer Software, Amortization | $ 469 | 470 | $ 423 |  |
Maximum |  |  |  |  |
Real Estate Held-for-investment And Accumulated Depreciation [Line Items] |  |  |  |  |
Real Estate Held-for-investment And Accumulated Depreciation Life Used For Depreciation | 55 years |  |  |  |
Annuities and Risk Solutions | RIS |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Policyholder Account Balance, Guaranteed Minimum Credit Rating | $ 20,699 | 17,711 | 15,549 | $ 14,431 | $ 144
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Policyholder Account Balance, Guaranteed Minimum Credit Rating | $ 20,699 | $ 17,711 | $ 15,549 | $ 14,431 | $ 144
Building | Maximum |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Property, Plant and Equipment, Useful Life | 40 years |  |  |  |
Leasehold Improvements | Maximum |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Property, Plant and Equipment, Useful Life | 20 years |  |  |  |
VODA and VOCRA | Minimum |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Amortization period | 9 years |  |  |  |
VODA and VOCRA | Maximum |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Amortization period | 40 years |  |  |  |
Computer Software, Intangible Asset | Minimum |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Amortization period | 3 years |  |  |  |

X
- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services and the amount of accumulated amortization for capitalized computer software costs. + References No definition available. + Details
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- Definition Property, Plant and Equipment amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Capitalized Computer Software amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software. + References No definition available. + Details
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