Guaranteed Benefit Features (Tables)	12 Months Ended
	Dec. 31, 2021
Guaranteed Benefit Features [Abstract]
Information On Guaranteed Death Benefit Features	As of December 31, 2021 (1) 2020 (1) Return of Net Deposits Total account value$ 117,503 $ 109,856 Net amount at risk (2) 84 72 Average attained age of contract holders 67 years 66 years Minimum Return Total account value$ 102 $ 100 Net amount at risk (2) 11 12 Average attained age of contract holders 79 years 78 years Guaranteed minimum return 5% 5% Anniversary Contract Value Total account value$ 28,788 $ 27,650 Net amount at risk (2) 400 390 Average attained age of contract holders 73 years 72 years (1)Our variable contracts with guarantees may offer more than one type of guarantee in each contract; therefore, the amounts listed are not mutually exclusive.(2)Represents the amount of death benefit in excess of the account balance that is subject to market fluctuations.
Summary Of Guaranteed Death Benefit Liabilities	For the Years Ended December 31, 2021 2020 2019 Balance as of beginning-of-year$ 121 $ 117 $ 161 Changes in reserves 31 30 (24) Benefits paid (20) (26) (20) Balance as of end-of-year$ 132 $ 121 $ 117
Account Balances Of Variable Annuity Contracts With Guarantees Invested In Separate Accounts	As of December 31, 2021 2020 Asset Type Domestic equity$ 77,290 $ 70,362 International equity 21,223 20,855 Fixed income 45,231 43,521 Total$ 143,744 $ 134,738