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Guaranteed Benefit Features	12 Months Ended
Guaranteed Benefit Features	Dec. 31, 2021
Insurance [Abstract]
Guaranteed Benefit Features	Guaranteed Benefit Features The Company calculates an additional liability for certain GMDBs and other minimum guarantees in order to recognize the expected value of these benefits in excess of the projected account balance over the accumulation period based on total expected assessments. The Company regularly evaluates estimates used to adjust the additional liability balance, with a related charge or credit to benefit expense, if actual experience or other evidence suggests that earlier assumptions should be revised. As of December 31, 2021 and 2020, the account value for the separate account contracts with guaranteed minimum benefits was $44.2 billion and $46.9 billion, respectively. The additional liability related to minimum guarantees as of December 31, 2021 and 2020 was $25 and $57, respectively. The aggregate fair value of fixed income securities and equity securities, including mutual funds, supporting separate accounts with additional insurance benefits and minimum investment return guarantees as of December 31, 2021 and 2020 was $9.0 billion and $9.2 billion, respectively.