Segment Information - Reconciliation of Income (Loss) from Operations by Segment to Consolidated Net Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Net income (loss)	$ 1,222	$ (881)
Other Operations
Segment Reporting Information [Line Items]
Net income (loss)	(235)	(87)
Net annuity product features, after-tax
Segment Reporting Information [Line Items]
Net income (loss)	1,141	(1,018)
Net life insurance product features, after-tax
Segment Reporting Information [Line Items]
Net income (loss)	(103)	(95)
Credit loss-related adjustments, after-tax
Segment Reporting Information [Line Items]
Net income (loss)	(1)	(18)
Investment gains (losses), after-tax
Segment Reporting Information [Line Items]
Net income (loss)	(65)	(45)
Changes in the fair value of reinsurance-related embedded derivatives, trading securities and certain mortgage loans, after-tax
Segment Reporting Information [Line Items]
Net income (loss)	153	7
Transaction and integration costs related to mergers, acquisitions and divestitures, after-tax
Segment Reporting Information [Line Items]
Net income (loss)	(8)	0
Annuities | Operating Segments
Segment Reporting Information [Line Items]
Net income (loss)	259	274
Life Insurance | Operating Segments
Segment Reporting Information [Line Items]
Net income (loss)	(35)	(13)
Group Protection | Operating Segments
Segment Reporting Information [Line Items]
Net income (loss)	80	71
Retirement Plan Services | Operating Segments
Segment Reporting Information [Line Items]
Net income (loss)	$ 36	$ 43