Investments - Concentration of Equity (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Dec. 31, 2025
AP Grange Holdings, LLC
Concentration Risk [Line Items]
Investment related gains (losses)	$ 673
AP Grange Holdings, LLC \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		$ 5,080
Atlas \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments	1,974	3,304
Fox Hedge L.P. \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments	3,150	3,171
Athora \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments	3,191
Apollo Multi-Asset Prime Securities 2, LLC \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments	3,000	3,000
Apollo Multi-Asset Prime Securities 3, LLC \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments	2,995
AP Alkaios (Luxembourg) S.à.r.l. \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments	2,775	2,791
Apollo Multi-Asset Prime Securities 1, LLC \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments	2,544	2,550
SVF II Finco Cayman LP \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments	2,064	2,186
Atlas Secured Advance Funding L.P. \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments	1,973
Électricité de France SA \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments	1,955	$ 2,068
Apollo Multi-Asset Prime Securities \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments	2,571
Apollo Multi-Asset Prime Securities 5, LLC \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments	$ 2,405