Fair Values - Nonredeemable Funds by Contractual Maturity (Details) $ in Millions	Jun. 30, 2024 USD ($)
Private equity
Carrying Value of Nonredeemable Funds by Contractual Maturity
Less than 5 years	$ 1,107
5-10 years	1,365
Over 10 years	98
Total	2,570
Real estate
Carrying Value of Nonredeemable Funds by Contractual Maturity
Less than 5 years	1,808
5-10 years	1,152
Over 10 years	70
Total	$ 3,030