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Policyholder Account Balances, Future Policy Benefits and Claims and Separate Account Liabilities Policyholder Account Balances, Future Policy Benefits and Claims and Separate Account Liabilities (Separate Account Liabilities) (Details 2) - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018
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Separate Accounts Disclosure [Abstract] |  |
Variable annuity | $ 72,330 | $ 66,913
VUL insurance | 7,078 | 6,451
Other insurance | 30 | 29
Threadneedle investment liabilities | 4,629 | 4,532
Total | $ 84,067 | $ 77,925

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- Definition The equivalent summary total of separate account assets representing contract holder funds related to other insurance policies, not otherwise described in the taxonomy. + References No definition available. + Details
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