Variable Interest Entities - Investment Entities (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
VIEs, not primary beneficiary
Variable interest entities
Obligation to provide financial or other support to VIEs	$ 0
VIEs, not primary beneficiary | CLOs
Variable interest entities
Maximum loss exposure	1	$ 1
Amortized Cost	1	1
VIEs, not primary beneficiary | Property Funds
Variable interest entities
Maximum loss exposure	63	57
Other investments	63	57
VIEs, not primary beneficiary | Hedge Funds and other Private Funds
Variable interest entities
Maximum loss exposure	0	0
Other investments	0	0
VIEs, not primary beneficiary | Non-U.S. Series Funds
Variable interest entities
Maximum loss exposure	30	25
Other investments	30	25
VIEs, not primary beneficiary | Affordable Housing Partnerships and Other Real Estate Partnerships
Variable interest entities
Maximum loss exposure	77	92
Other investments	77	92
Liability related to original purchase commitments not yet remitted	6	7
Consolidated investment entities | Unfunded commitments
Variable interest entities
Loans	$ 24	$ 30