Statements of Financial Position (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Fixed Maturities, Available-for-sale, at fair value (AFS), Allowance for Credit Losses	$ 1,086	$ 686
Fixed Maturities, Available-for-sale, amortized cost	8,556,236	16,177,891
Fixed Maturities, Trading, Amortized Cost	27,641	1,017,771
Equity securities, at cost	323,289	279,096
Commercial mtg and other loans, allowance for credit losses	4,657	7,382
Other invested assets, fair value	$ 13,077	$ 204,863
Common stock, par value (in dollars per share)	$ 100	$ 100
Common stock, shares authorized	25,000	25,000
Common stock, shares issued	25,000	25,000
Common stock, shares outstanding	25,000	25,000