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Asset Management Fees - Asset Management Fees (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Asset management fees	$ 16	$ 20	$ 71	$ 65
CLOs
Disaggregation of Revenue [Line Items]
Asset management fees	8	9	25	31
Opportunity funds and liquid strategies
Disaggregation of Revenue [Line Items]
Asset management fees	2	4	14	12
Wind-down funds
Disaggregation of Revenue [Line Items]
Asset management fees	1	2	2	6
Total management fees
Disaggregation of Revenue [Line Items]
Asset management fees	11	15	41	49
Performance fees
Disaggregation of Revenue [Line Items]
Asset management fees	2	0	17	1
Reimbursable fund expenses
Disaggregation of Revenue [Line Items]
Asset management fees	$ 3	$ 5	$ 13	$ 15

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