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Regulatory Requirements - Bank Regulatory Capital (Details) - Subsidiaries - Ameriprise Bank - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Regulatory capital |  |
Common equity Tier 1 capital, Actual Amount | $ 1,715 | $ 1,542
Tier 1 capital, Actual Amount | 1,715 | 1,542
Total capital, Actual Amount | 1,724 | 1,546
Tier 1 leverage, Actual Amount | $ 1,715 | $ 1,542
Common equity Tier 1 capital, Actual Ratio (as a percent) | 31.72% | 30.18%
Tier 1 capital, Actual Ratio (as a percent) | 31.72% | 30.18%
Total capital, Actual Ratio (as a percent) | 31.89% | 30.26%
Tier 1 leverage, Actual Ratio (as a percent) | 7.44% | 7.72%
Common equity Tier 1, Requirement for capital adequacy, Amount | $ 243 | $ 230
Tier 1 capital, Requirement for capital adequacy, Amount | 324 | 307
Total capital, Requirement for capital adequacy, Amount | 433 | 409
Tier 1 leverage, Requirement for capital adequacy, Amount | $ 922 | $ 799
Common equity Tier 1 capital, Requirement for capital adequacy, Ratio (as a percent) | 4.50% | 4.50%
Tier 1 capital, Requirement for capital adequacy, Ratio (as a percent) | 6.00% | 6.00%
Total capital, Requirement for capital adequacy, Ratio (as a percent) | 8.00% | 8.00%
Tier 1 leverage, Requirement for capital adequacy, Ratio (as a percent) | 4.00% | 4.00%
Common equity Tier 1 capital, To be well capitalized, Amount | $ 351 | $ 332
Tier 1 capital, To be well capitalized, Amount | 433 | 409
Total capital, To be well capitalized, Amount | 541 | 511
Tier 1 leverage, To be well capitalized, Amount | $ 1,153 | $ 999
Common equity Tier 1 capital, To be well capitalized, Ratio (as a percent) | 6.50% | 6.50%
Tier 1 capital, To be well capitalized, Ratio (as a percent) | 8.00% | 8.00%
Total capital, To be well capitalized, Ratio (as a percent) | 10.00% | 10.00%
Tier 1 leverage, To be well capitalized, Ratio (as a percent) | 5.00% | 5.00%

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