Condensed Consolidated Balance Sheets Parenthetical - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Fixed maturities, amortized cost	$ 22,497	$ 24,667
Fixed maturities, Allowance for Credit Loss	25	0
Equity securities, cost	173	116
Mortgage loans on real estate valuation allowance	0	0
Securities pledged, amortized costs	$ 792	$ 169
Common stock, par value	$ 50	$ 50
Common stock, shares authorized	100,000	100,000
Common stock, shares issued	55,000	55,000
Common stock, shares outstanding	55,000	55,000