Market Risk Benefits - Reconciliation of Asset and Liability (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Market Risk Benefit [Line Items]
Market risk benefits asset	$ 88	$ 117	$ 41
Market risk benefits liability	403	282	469
Net	315	165	428
FIA
Market Risk Benefit [Line Items]
Market risk benefits asset	88	117	41
Market risk benefits liability	402	281	467
Net	314	164	426	$ 478
Fixed indexed annuities
Market Risk Benefit [Line Items]
Market risk benefits asset	0	0	0
Market risk benefits liability	1	1	2
Net	$ 1	$ 1	$ 2	$ 1