Investments - Concentration of Equity (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Sep. 30, 2026	Mar. 31, 2026	Dec. 31, 2025
Concentration Risk [Line Items]
Equity, Attributable to Parent	$ 18,600	$ 13,413	$ 17,800	$ 20,492
AP Falcon Holdings, LLC \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		3,763
Paramount Skydance Corporation \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		3,579
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
Athora \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		3,178
Atlas \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments				3,304
Fox Hedge L.P. \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		3,029		3,171
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		2,612		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		3,097		2,186
Atlas Secured Advance Funding L.P. \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		1,975
Électricité de France SA \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		1,836		$ 2,068
Apollo Multi-Asset Prime Securities \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		2,837
Apollo Multi-Asset Prime Securities 5, LLC \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		2,953
Apollo Multi-Asset Prime Securities 6, LLC \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		2,684
Warehouse Halifax Funding, L.P. \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		1,913
AT&T \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		1,786
Stonepeak Wallaby I Holdings L.P. \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		1,627
AP Kona Holding L.P. \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		1,577
Chestnut Ridge L.P. \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		1,442
Federal Home Loan Bank of Des Moines (FHLB) \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		1,355
Atlas Securitized Products Funding 1, L.P. \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		1,778
Space Exploration Technologies Corp. \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		2,779
SoftBank Group Corp. \| Stockholders' Equity, Total
Concentration Risk [Line Items]
Investments		$ 1,749