Fair Values - Nonredeemable Funds by Contractual Maturity (Details) $ in Millions	Jun. 30, 2022 USD ($)
Private equity
Carrying Value of Nonredeemable Funds by Contractual Maturity
Less than 5 years	$ 1,034
5-10 years	1,264
Over 10 years	525
Total	2,823
Real estate
Carrying Value of Nonredeemable Funds by Contractual Maturity
Less than 5 years	794
5-10 years	1,354
Over 10 years	22
Total	$ 2,170