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Investments - Summary (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023 | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | --- | --- | ---
Summary of investments |  |  |  |
Allowance for credit losses | $ 57 | $ 63 | $ 61 | $ 59
Ameriprise Financial |  |  |  |
Summary of investments |  |  |  |
Available-for-Sale securities, at fair value | 51,695 | 51,562 |  |
Mortgage loans (allowance for credit losses: 2024, $14; 2023, $14) | 2,233 | 2,118 |  |
Policy loans | 947 | 912 |  |
Other investments (allowance for credit losses: 2024, $6; 2023, $6) | 990 | 897 |  |
Total | 55,865 | 55,489 |  |
Ameriprise Financial | Mortgage loans |  |  |  |
Summary of investments |  |  |  |
Allowance for credit losses | 14 | 14 |  |
Ameriprise Financial | Other investments |  |  |  |
Summary of investments |  |  |  |
Allowance for credit losses | $ 6 | $ 6 |  |

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