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BUSINESS SEGMENT INFORMATION - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) segment guaranteedLivingBenefitRider clientChannel	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment	6
Adjustments
Segment Reporting Information [Line Items]
Impact of actuarial assumptions	$ 61
Impact of realized amounts related to equity classified instruments	$ 8	$ 36	$ (50)
Investment Management and Research
Segment Reporting Information [Line Items]
Number of main client channels | clientChannel	3
Legacy
Segment Reporting Information [Line Items]
Number of guaranteed living benefit riders | guaranteedLivingBenefitRider	4

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- Definition

Number Of Client Channels

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- Definition

Number Of Guaranteed Living Benefit Riders

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Other Adjustments To Income, Actuarial Assumptions

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-18

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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