Investments - Schedule of Investment Funds, Including Related Parties and Consolidated VIEs (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Net Investment Income [Line Items]
Total investment funds, including related parties and consolidated VIEs	$ 28,953	$ 26,145
Percentage of Total	100.00%	100.00%
Nonrelated Party \| VIE, Primary Beneficiary
Net Investment Income [Line Items]
Carrying Value	$ 25,633	$ 23,888
Percentage of Total	88.50%	91.40%
Due to related parties
Net Investment Income [Line Items]
Carrying Value	$ 3,136	$ 2,149
Percentage of Total	10.80%	8.20%
Origination platforms \| Nonrelated Party \| VIE, Primary Beneficiary
Net Investment Income [Line Items]
Carrying Value	$ 9,450	$ 9,067
Percentage of Total	32.60%	34.70%
Origination platforms \| Due to related parties
Net Investment Income [Line Items]
Carrying Value	$ 34	$ 33
Percentage of Total	0.10%	0.10%
Retirement services platforms \| Due to related parties
Net Investment Income [Line Items]
Carrying Value	$ 2,533	$ 1,538
Percentage of Total	8.80%	5.90%
Equity \| Nonrelated Party
Net Investment Income [Line Items]
Carrying Value	$ 184	$ 108
Percentage of Total	0.70%	0.40%
Equity \| Nonrelated Party \| VIE, Primary Beneficiary
Net Investment Income [Line Items]
Carrying Value	$ 10,562	$ 9,553
Percentage of Total	36.50%	36.50%
Equity \| Due to related parties
Net Investment Income [Line Items]
Carrying Value	$ 266	$ 260
Percentage of Total	0.90%	1.00%
Credit \| Nonrelated Party \| VIE, Primary Beneficiary
Net Investment Income [Line Items]
Carrying Value	$ 3,385	$ 3,682
Percentage of Total	11.70%	14.10%
Credit \| Due to related parties
Net Investment Income [Line Items]
Carrying Value	$ 297	$ 313
Percentage of Total	1.00%	1.20%
Other \| Nonrelated Party \| VIE, Primary Beneficiary
Net Investment Income [Line Items]
Carrying Value	$ 2,236	$ 1,586
Percentage of Total	7.70%	6.10%
Other \| Due to related parties
Net Investment Income [Line Items]
Carrying Value	$ 6	$ 5
Percentage of Total	0.00%	0.00%