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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 | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Separate account liabilities |  |
Variable annuity | $ 75,921 | $ 82,862
VUL insurance | 8,719 | 9,343
Other insurance | 31 | 33
Threadneedle investment liabilities | 4,998 | 5,253
Total | $ 89,669 | $ 97,491

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