Asset Management Fees - Asset Management Fees (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Asset management fees	$ 93	$ 88	$ 89
CLOs
Disaggregation of Revenue [Line Items]
Asset management fees	34	41	21
Opportunity funds and liquid strategies
Disaggregation of Revenue [Line Items]
Asset management fees	17	17	8
Wind-down funds
Disaggregation of Revenue [Line Items]
Asset management fees	2	7	25
Asset management fees
Disaggregation of Revenue [Line Items]
Asset management fees	53	65	54
Performance fees
Disaggregation of Revenue [Line Items]
Asset management fees	19	1	0
Reimbursable fund expenses
Disaggregation of Revenue [Line Items]
Asset management fees	21	22	35
CLOs, before rebates
Disaggregation of Revenue [Line Items]
Asset management fees	$ 34	$ 47	$ 40