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ORGANIZATION - Narrative (Details) shares in Millions |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | ---
Nov. 01, 2022 USD ($) shares | Oct. 03, 2022 USD ($) | Jul. 01, 2022 USD ($) shares | Jun. 01, 2021 USD ($) | Dec. 31, 2022 USD ($) segment | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Organization Basis Of Presentation [Line Items] |  |  |  |  |  |  |
Assets |  |  |  |  | $ 252,702,000,000 | $ 295,688,000,000 |
Number of reportable segments | segment |  |  |  |  | 6 |  |
AB units fair value |  |  |  |  |  | $ 293,000,000 | $ 494,000,000
Massachusetts Domiciled Insurance Company |  |  |  |  |  |  |
Organization Basis Of Presentation [Line Items] |  |  |  |  |  |  |
Guaranteed credit rate (as a percent) |  | 3.00% |  |  |  |  |
Guaranteed credit amount of general account assets |  | $ 4,000,000,000 |  |  |  |  |
Reinsurance, guaranteed credit amount of separate account assets |  | 5,000,000,000 |  |  |  |  |
Number of Employees, Total | Reinsurance Transaction |  |  |  |  |  |  |
Organization Basis Of Presentation [Line Items] |  |  |  |  |  |  |
Deferred variable annuity |  | $ 360,000 |  |  |  |  |
Number of Employees, Total | Reinsurance Transaction | Massachusetts Domiciled Insurance Company |  |  |  |  |  |  |
Organization Basis Of Presentation [Line Items] |  |  |  |  |  |  |
Concentration risk, percentage |  | 50.00% |  |  |  |  |
Corporate Solutions Life Reinsurance Company (CS Life) |  |  |  |  |  |  |
Organization Basis Of Presentation [Line Items] |  |  |  |  |  |  |
Ownership percentage acquired |  |  |  | 100.00% |  |  |
Alliance Bernstein (AB) |  |  |  |  |  |  |
Organization Basis Of Presentation [Line Items] |  |  |  |  |  |  |
Economic interest |  |  |  |  | 61.00% | 65.00% |
AB units issued (in shares) | shares | 12.1 |  | 3.2 |  |  |  |
AB units fair value | $ 456,000,000 |  | $ 133,000,000 |  |  |  |
Contingent payment arrangements |  |  |  |  | $ 229,000,000 |  |
Performance obligation period |  |  |  |  | 6 years |  |
Alliance Bernstein (AB) | Corporate Solutions Life Reinsurance Company (CS Life) |  |  |  |  |  |  |
Organization Basis Of Presentation [Line Items] |  |  |  |  |  |  |
Assets |  | $ 2,800,000,000 |  | $ 9,500,000,000 |  |  |
Direct insurance liabilities ceded |  | $ 4,100,000,000 |  | 9,600,000,000 |  |  |
Fair value |  |  |  | 5,300,000,000 |  |  |
Separate account, liability, ceded |  |  |  | 16,900,000,000 |  |  |
Alliance Bernstein (AB) | Corporate Solutions Life Reinsurance Company (CS Life) | GMxB derivative features’ liability |  |  |  |  |  |  |
Organization Basis Of Presentation [Line Items] |  |  |  |  |  |  |
Fair value |  |  |  | 1,200,000,000 |  |  |
Separate account, liability, ceded |  |  |  | 5,300,000,000 |  |  |
Alliance Bernstein (AB) | CarVal |  |  |  |  |  |  |
Organization Basis Of Presentation [Line Items] |  |  |  |  |  |  |
Ownership percentage acquired |  |  |  |  | 100.00% |  |
Venerable Insurance and Annuity Company (VAIC) | Equitable Financial Life Insurance Company (EFLIC) |  |  |  |  |  |  |
Organization Basis Of Presentation [Line Items] |  |  |  |  |  |  |
Surplus notes |  |  |  | 60,000,000 |  |  |
Venerable Insurance and Annuity Company (VAIC) | Corporate Solutions Life Reinsurance Company (CS Life) |  |  |  |  |  |  |
Organization Basis Of Presentation [Line Items] |  |  |  |  |  |  |
Business combination, consideration transferred |  |  |  | $ 215,000,000 |  |  |
Equitable Investment Management Group, LLC (EIMG) | VA Capital Company LLC |  |  |  |  |  |  |
Organization Basis Of Presentation [Line Items] |  |  |  |  |  |  |
Ownership percentage acquired |  |  |  | 9.09% |  |  |

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