Asset Management Fees - Asset Management Fees (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Asset management fees	$ 88	$ 89	$ 22
CLOs
Disaggregation of Revenue [Line Items]
Asset management fees	41	21	3
Opportunity funds and liquid strategies
Disaggregation of Revenue [Line Items]
Asset management fees	17	8	2
Wind-down funds
Disaggregation of Revenue [Line Items]
Asset management fees	7	25	13
Asset management fees
Disaggregation of Revenue [Line Items]
Asset management fees	65	54	18
Performance fees
Disaggregation of Revenue [Line Items]
Asset management fees	1	0	4
Reimbursable fund expenses
Disaggregation of Revenue [Line Items]
Asset management fees	22	35	0
CLOs, before rebates
Disaggregation of Revenue [Line Items]
Asset management fees	$ 47	$ 40	$ 11