Managed Investment Entities - Progression of investment in CLO tranches (Details) - Variable interest entity, primary beneficiary - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Investment in CLO tranches, beginning balance	$ 177
Investment in CLO tranches, ending balance	177
Continuing operations
Variable Interest Entity [Line Items]
Investment in CLO tranches, beginning balance	137	$ 112	$ 76	$ 57
Face amount of managed investment entities liabilities purchased during the period	32	66	21
Sales of managed investment entities liabilities	0	0	0
Distributions from managed investment entities liabilities	(34)	(18)	(22)
Mark-to-market of ownership of managed investment entities liabilities	27	(11)	20
Change in accrued interest of ownership of managed investment entities liabilities	0	(1)	0
Investment in CLO tranches, ending balance	$ 137	$ 112	$ 76