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Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Total revenues	$ 5,153	$ 2,929	$ 9,269	$ 6,743
Other Operations
Segment Reporting Information [Line Items]
Total revenues	39	46	66	90
Revenue adjustments from annuity and life insurance product features
Segment Reporting Information [Line Items]
Total revenues	105	(1,123)	(474)	(1,894)
Credit loss-related adjustments
Segment Reporting Information [Line Items]
Total revenues	(34)	(5)	(36)	(27)
Investment gains (losses)
Segment Reporting Information [Line Items]
Total revenues	(230)	(668)	(311)	(726)
Changes in the fair value of reinsurance-related embedded derivatives, trading securities and certain mortgage loans
Segment Reporting Information [Line Items]
Total revenues	201	(5)	395	3
Gains (losses) on other non-financial assets – sale of subsidiaries/businesses
Segment Reporting Information [Line Items]
Total revenues	584	0	584	0
Annuities | Operating Segments
Segment Reporting Information [Line Items]
Total revenues	1,209	1,190	2,477	2,331
Life Insurance | Operating Segments
Segment Reporting Information [Line Items]
Total revenues	1,511	1,760	3,052	3,517
Group Protection | Operating Segments
Segment Reporting Information [Line Items]
Total revenues	1,441	1,400	2,867	2,788
Retirement Plan Services | Operating Segments
Segment Reporting Information [Line Items]
Total revenues	$ 327	$ 334	$ 649	$ 661

X

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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