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Policyholder Account Balances, Future Policy Benefits and Claims and Separate Account Liabilities - Components of Separate Account Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Separate Account Liabilities |  |
Variable annuity | $ 63,223 | $ 82,862
VUL insurance | 7,628 | 9,343
Other insurance | 25 | 33
Threadneedle investment liabilities | 3,086 | 5,253
Separate account liabilities | $ 73,962 | $ 97,491

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