Segment Information - Reconciliation of Income (Loss) from Operations by Segment to Consolidated Net Income (Loss) (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]
Net income (loss)	$ 761	$ (956)	$ 1,418	$ (1,884)
Other Operations
Segment Reporting Information [Line Items]
Net income (loss)	(59)	(75)	(167)	(127)
Net annuity product features, after-tax
Segment Reporting Information [Line Items]
Net income (loss)	324	1,084	1,108	262
Net annuity product features, after-tax | Fortitude Re
Segment Reporting Information [Line Items]
Net income (loss)		330		330
Net life insurance product features, after-tax (4)
Segment Reporting Information [Line Items]
Net income (loss)	(12)	207	(114)	112
Credit loss-related adjustments, after-tax
Segment Reporting Information [Line Items]
Net income (loss)	(27)	(4)	(28)	(21)
Investment gains (losses)
Segment Reporting Information [Line Items]
Net income (loss)	(160)	(2,435)	(206)	(2,478)
Changes in the fair value of reinsurance-related embedded derivatives, trading securities and certain mortgage loans
Segment Reporting Information [Line Items]
Net income (loss)	34	56	71	47
GLB rider fees ceded to LNBAR, after-tax
Segment Reporting Information [Line Items]
Net income (loss)	(182)	(184)	(364)	(367)
Transaction and integration costs related to mergers, acquisitions and divestitures, after-tax
Segment Reporting Information [Line Items]
Net income (loss)	(12)	(7)	(21)	(7)
Gains (losses) on other non-financial assets – sale of subsidiaries/businesses
Segment Reporting Information [Line Items]
Net income (loss)	358	0	358	0
Annuities | Operating Segments
Segment Reporting Information [Line Items]
Net income (loss)	252	218	475	435
Life Insurance | Operating Segments
Segment Reporting Information [Line Items]
Net income (loss)	79	32	28	0
Group Protection (1) | Operating Segments
Segment Reporting Information [Line Items]
Net income (loss)	129	109	209	179
Retirement Plan Services | Operating Segments
Segment Reporting Information [Line Items]
Net income (loss)	$ 37	$ 43	$ 69	$ 81