INVESTMENTS - Summary of Funded Capital and Unfunded Capital Commitments (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Funded commitments
Schedule of Investments [Line Items]
Other commitment	$ 520	$ 352
Unfunded commitments
Schedule of Investments [Line Items]
Other commitment	2,685	2,381
Senior Direct Lending Program | Funded commitments
Schedule of Investments [Line Items]
Other commitment	4,772	4,168
Senior Direct Lending Program | Funded commitments | Ares Capital Corporation
Schedule of Investments [Line Items]
Other commitment	1,121	987
Senior Direct Lending Program | Unfunded commitments
Schedule of Investments [Line Items]
Other commitment	311	262
Senior Direct Lending Program | Unfunded commitments | Ares Capital Corporation
Schedule of Investments [Line Items]
Other commitment	$ 73	$ 62