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Regulatory Requirements (Narrative) (Details) $ in Millions | Dec. 31, 2019 USD ($) subsidiary | Dec. 31, 2018 USD ($)
--- | --- | ---
Regulatory Requirements |  |
Aggregate amount of unrestricted net assets | $ 1,900 |
Number of broker-dealer subsidiaries | subsidiary | 4 |
RiverSource Life [Member] |  |
Regulatory Requirements |  |
Statutory unassigned surplus | $ 326 | $ 642
Percentage of previous year-end statutory capital and surplus | 10.00% |
Statutory capital and surplus | $ 2,900 | 3,300
Government debt securities on deposit with states as required by law | 4 | 4
Ameriprise Certificate Company [Member] |  |
Regulatory Requirements |  |
Requirement of qualified assets under Investment Company Act of 1940 | 7,500 | 7,900
Actual amount of qualified assets | 8,000 | $ 8,400
Ameriprise Certificate Company [Member] | Ameriprise Financial, Inc |  |
Regulatory Requirements |  |
Maximum commitment under Capital Support Agreement | $ 50 |

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