Investments (excluding Consolidated Investment Entities) - Loans by Loan to Value (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Schedule of Loans by Loan to Value Ratio [Line Items]
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	$ 468	$ 968
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	919	345
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	336	293
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	191	588
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	532	466
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	3,038	2,948
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	5,484	5,608
0% - 50%
Schedule of Loans by Loan to Value Ratio [Line Items]
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	139	387
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	353	180
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	188	90
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	62	249
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	247	227
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	2,702	2,783
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	3,691	3,916
50% - 60%
Schedule of Loans by Loan to Value Ratio [Line Items]
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	165	489
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	492	147
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	130	203
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	129	254
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	219	185
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	284	163
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,419	1,441
60% - 70%
Schedule of Loans by Loan to Value Ratio [Line Items]
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	127	92
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	58	18
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	18	0
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	0	85
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	63	37
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	33	0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	299	232
70% - 80%
Schedule of Loans by Loan to Value Ratio [Line Items]
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	37	0
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	16	0
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	3	17
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	17	0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	73	17
80% and above
Schedule of Loans by Loan to Value Ratio [Line Items]
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	2	2
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	$ 2	$ 2

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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