Variable Interest Entities - Schedule of Statements of Operations Activity of the Consolidated VIEs (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Net Investment Income [Line Items]
Net recognized investment gains (losses) on trading securities	$ 87	$ 118	$ (127)	$ 140
Net recognized investment gains (losses) on mortgage loans	(588)	785	(1,344)	1,799
Total Revenues	11,153	6,814	16,212	12,362
Retirement Services
Net Investment Income [Line Items]
Net investment income	5,350	4,776	10,489	9,117
Net gains (losses) from investment activities	2,989	(5)	911	(833)
Total Revenues	9,526	5,707	13,574	10,209
VIE, Primary Beneficiary \| Retirement Services
Net Investment Income [Line Items]
Net investment income	55	88	134	172
Net recognized investment gains (losses) on trading securities	4	4	(41)	6
Net recognized investment gains (losses) on mortgage loans	4	(13)	6	7
Net recognized investment gains on investment funds	656	455	1,098	940
Net other gains (losses)	(5)	16	2	17
Net gains (losses) from investment activities	659	462	1,065	970
Total Revenues	714	550	1,199	1,142
VIE, Primary Beneficiary \| Trading securities \| Retirement Services
Net Investment Income [Line Items]
Net investment income	26	54	80	101
VIE, Primary Beneficiary \| Mortgage loans \| Retirement Services
Net Investment Income [Line Items]
Net investment income	25	38	57	81
VIE, Primary Beneficiary \| Investment funds \| Retirement Services
Net Investment Income [Line Items]
Net investment income	2	20	6	21
VIE, Primary Beneficiary \| Other \| Retirement Services
Net Investment Income [Line Items]
Net investment income	$ 2	$ (24)	$ (9)	$ (31)

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