v3.25.4
Regulatory Requirements - Bank Regulatory Capital (Details) - Subsidiaries - Ameriprise Bank - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Regulatory capital    
Common equity tier 1 capital, actual amount $ 1,821 $ 1,763
Tier 1 capital, actual amount 1,821 1,763
Total capital, actual amount 1,833 1,772
Tier 1 leverage, actual amount $ 1,821 $ 1,763
Common equity tier 1 capital, actual ratio (as a percent) 32.63% 33.88%
Tier 1 capital, actual ratio (as a percent) 32.63% 33.88%
Total capital, actual ratio (as a percent) 32.83% 34.06%
Tier 1 leverage, actual ratio (as a percent) 7.32% 7.35%
Common equity tier 1, requirement for capital adequacy, amount $ 251 $ 234
Tier 1 capital, requirement for capital adequacy, amount 335 312
Total capital, requirement for capital adequacy, amount 447 416
Tier 1 leverage, requirement for capital adequacy, amount $ 996 $ 959
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 $ 363 $ 338
Tier 1 capital, to be well capitalized, amount 447 416
Total capital, to be well capitalized, amount 558 520
Tier 1 leverage, to be well capitalized, amount $ 1,245 $ 1,199
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%