Segment Information - Net Revenues and Operating Earnings (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Net revenues
Total net revenues	$ 4,146	$ 3,742
Operating earnings
Pretax income (loss)	1,219	496
Reportable segments
Net revenues
Total net revenues	4,448	4,014
Operating earnings
Pretax income (loss)	1,078	978
Reportable segments | Advice & Wealth Management
Net revenues
Total net revenues	2,560	2,265
Operating earnings
Pretax income (loss)	762	693
Reportable segments | Asset Management
Net revenues
Total net revenues	855	799
Operating earnings
Pretax income (loss)	206	165
Reportable segments | Retirement & Protection Solutions
Net revenues
Total net revenues	912	824
Operating earnings
Pretax income (loss)	199	194
Reportable segments | Corporate & Other
Net revenues
Total net revenues	121	126
Operating earnings
Pretax income (loss)	(89)	(74)
Intersegment eliminations
Net revenues
Total net revenues	(348)	(316)
Intersegment eliminations | Advice & Wealth Management
Net revenues
Total net revenues	(225)	(201)
Intersegment eliminations | Asset Management
Net revenues
Total net revenues	(24)	(17)
Intersegment eliminations | Retirement & Protection Solutions
Net revenues
Total net revenues	(106)	(102)
Intersegment eliminations | Corporate & Other
Net revenues
Total net revenues	7	4
Segment reconciling items
Net revenues
Total net revenues	(3)	(3)
Segment reconciling items | Net realized investment gains (losses)
Net revenues
Total net revenues	0	3
Operating earnings
Pretax income (loss)	0	3
Segment reconciling items | Market impact on non-traditional long-duration products
Net revenues
Total net revenues	2	0
Operating earnings
Pretax income (loss)	140	(475)
Segment reconciling items | Integration/restructuring charges
Operating earnings
Pretax income (loss)	0	(10)
Total Segments after intersegment eliminations | Reportable segments
Net revenues
Total net revenues	4,100	3,698
Consolidated investment entities | Segment reconciling items
Net revenues
Total net revenues	44	41
Operating earnings
Pretax income (loss)	$ 1	$ 0