Segments - Operating Revenues (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Total revenues	$ 1,871	$ 1,524	$ 3,706	$ 3,030
Adjustments
Segment Reporting Information [Line Items]
Total revenues	151	(14)	288	(111)
Net investment gains (losses) and related charges and adjustments	(46)	(60)	(60)	(180)
Revenues related to businesses exited or to be exited through reinsurance or divestment	2	(55)	32	(109)
Revenues attributable to noncontrolling interests	128	93	188	142
Other adjustments	67	8	127	36
Operating Segments
Segment Reporting Information [Line Items]
Total revenues	1,721	1,537	3,419	3,140
Operating Segments | Wealth Solutions
Segment Reporting Information [Line Items]
Total revenues	705	709	1,389	1,465
Operating Segments | Investment Management
Segment Reporting Information [Line Items]
Total revenues	226	171	455	349
Operating Segments | Health Solutions
Segment Reporting Information [Line Items]
Total revenues	775	641	1,549	1,288
Operating Segments | Corporate
Segment Reporting Information [Line Items]
Total revenues	15	17	26	39
Intersegment | Investment Management
Segment Reporting Information [Line Items]
Total revenues	$ 22	$ 23	$ 44	$ 45