Investments - Concentration of Equity (Details) - Stockholders' Equity, Total - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Athene Freedom Holdings LP
Concentration Risk [Line Items]
Investments	$ 1,323	$ 3,119
AP Tundra Holdings LLC
Concentration Risk [Line Items]
Investments	918
MidCap
Concentration Risk [Line Items]
Investments	553
PK AirFinance [Member]
Concentration Risk [Line Items]
Investments	932
SoftBank Vision Fund II
Concentration Risk [Line Items]
Investments	816
Athora Holding Ltd.
Concentration Risk [Line Items]
Investments	975
Cayman Universe
Concentration Risk [Line Items]
Investments	794
AOP Finance
Concentration Risk [Line Items]
Investments	735
AA Infrastructure
Concentration Risk [Line Items]
Investments	627
Tiger Global
Concentration Risk [Line Items]
Investments	531
Bank of America
Concentration Risk [Line Items]
Investments	530
Morgan Stanley
Concentration Risk [Line Items]
Investments	495
Towd Point
Concentration Risk [Line Items]
Investments	476
AA Warehouse
Concentration Risk [Line Items]
Investments	443
Apollo Rose II (B), L.P.
Concentration Risk [Line Items]
Investments	437
AT&T
Concentration Risk [Line Items]
Investments	418
JP Morgan Chase
Concentration Risk [Line Items]
Investments	406
FWD Group
Concentration Risk [Line Items]
Investments	400
HWIRE
Concentration Risk [Line Items]
Investments	397
Mileage Plus
Concentration Risk [Line Items]
Investments	391
Comcast
Concentration Risk [Line Items]
Investments	386
Venerable
Concentration Risk [Line Items]
Investments	$ 502