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Investments - Summary of Net Investment Income (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Summary of Net investment income |  |  |  |  |
Net investment income | $ 3,206 | $ 1,474 | [1] | $ 1,683 | [1]
Ameriprise Financial |  |  |  |  |
Summary of Net investment income |  |  |  |  |
Investment income on fixed maturities | 2,637 | 1,320 |  | 933 |
Net realized gains (losses) | (27) | (87) |  | 636 |
Other | 415 | 139 |  | (1) |
Consolidated investment entities |  |  |  |  |
Summary of Net investment income |  |  |  |  |
Net investment income | $ 181 | $ 102 |  | $ 115 |
[1] | Certain prior period amounts have been restated. See Note 3 for more information.

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- Definition Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Includes realized and unrealized gain (loss) on investments. + References No definition available. + Details
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- Definition Amount of interest income, amortization of premium and accretion of discount, on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in net income (trading); classified as operating. + References No definition available. + Details
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