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Debt - Short-term Borrowings Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Federal Home Loan Bank borrowings | Ameriprise Bank |  |
Short-term borrowings |  |
Short-term borrowings | $ 0 | $ 0
Federal Home Loan Bank borrowings | Maximum | RiverSource Life Insurance Company |  |
Short-term borrowings |  |
Term, less than | 3 months | 3 months
Federal Home Loan Bank borrowings | Commercial mortgage backed securities | RiverSource Life Insurance Company |  |
Short-term borrowings |  |
FHLB advances, securities pledged as collateral | $ 1,100 | $ 962
Federal Reserve Bank Advances | Ameriprise Bank |  |
Short-term borrowings |  |
Short-term borrowings | $ 0 | $ 0

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