Schedule II-Condensed Financial Information Of Registrant (Balance Sheets - Additional Information) (Details) - USD ($) $ / shares in Units, $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Fixed Maturity Securities, Allowance for Credit Loss	$ 9	$ 6
Preferred stock, shares authorized	100,000,000
Preferred stock, shares issued	0
Preferred stock, shares outstanding	0
Common stock, par value	$ 0.01
Common stock, shares authorized	900,000,000
Common stock, shares issued	237,958,067	241,770,746
Common stock, shares outstanding	237,958,067	241,770,746
Parent Company [Member]
Available-for-sale fixed maturity securities investments, current, amortized cost	$ 175	$ 512
Fixed Maturity Securities, Allowance for Credit Loss	$ 0	$ 1
Preferred stock, shares authorized	100,000,000
Preferred stock, shares issued	0
Preferred stock, shares outstanding	0
Common stock, par value	$ 0.01
Common stock, shares authorized	900,000,000
Common stock, shares issued	237,958,067	241,770,746
Common stock, shares outstanding	237,958,067	241,770,746