v3.26.1
Fair Values of Assets and Liabilities - Financial Instruments Not Reported at Fair Value (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Dec. 31, 2024
Financial Liabilities      
Separate account liabilities - investment contracts $ 76,466 $ 80,044 $ 78,114
Ameriprise Financial      
Financial Assets      
Mortgage loans, net 2,919 2,824  
Policy loans 1,067 1,056  
Ameriprise Financial | Carrying Value      
Financial Assets      
Mortgage loans, net 2,919 2,824  
Policy loans 1,067 1,056  
Receivables 9,765 9,480  
Restricted and segregated cash 486 616  
Other investments and assets 243 250  
Financial Liabilities      
Policyholder account balances, future policy benefits and claims 24,076 23,297  
Investment certificate reserves 7,553 8,150  
Banking and brokerage deposits 25,734 25,611  
Debt and other liabilities 3,671 3,545  
Ameriprise Financial | Carrying Value | Investment contracts      
Financial Liabilities      
Separate account liabilities - investment contracts 2,662 2,765  
Ameriprise Financial | Fair Value      
Financial Assets      
Mortgage loans, net 2,820 2,753  
Policy loans 1,067 1,056  
Receivables 8,681 8,487  
Restricted and segregated cash 486 616  
Other investments and assets 244 251  
Financial Liabilities      
Policyholder account balances, future policy benefits and claims 20,608 19,636  
Investment certificate reserves 7,523 8,128  
Banking and brokerage deposits 25,734 25,611  
Debt and other liabilities 3,699 3,624  
Ameriprise Financial | Fair Value | Investment contracts      
Financial Liabilities      
Separate account liabilities - investment contracts 2,662 2,765  
Ameriprise Financial | Level 1 | Fair Value      
Financial Assets      
Mortgage loans, net 0 0  
Policy loans 0 0  
Receivables 317 201  
Restricted and segregated cash 486 616  
Other investments and assets 0 0  
Financial Liabilities      
Policyholder account balances, future policy benefits and claims 0 0  
Investment certificate reserves 0 0  
Banking and brokerage deposits 25,726 25,596  
Debt and other liabilities 371 245  
Ameriprise Financial | Level 1 | Fair Value | Investment contracts      
Financial Liabilities      
Separate account liabilities - investment contracts 0 0  
Ameriprise Financial | Level 2 | Fair Value      
Financial Assets      
Mortgage loans, net 866 774  
Policy loans 1,067 1,056  
Receivables 2,422 2,274  
Restricted and segregated cash 0 0  
Other investments and assets 184 194  
Financial Liabilities      
Policyholder account balances, future policy benefits and claims 0 0  
Investment certificate reserves 0 0  
Banking and brokerage deposits 8 15  
Debt and other liabilities 3,325 3,376  
Ameriprise Financial | Level 2 | Fair Value | Investment contracts      
Financial Liabilities      
Separate account liabilities - investment contracts 2,662 2,765  
Ameriprise Financial | Level 3 | Fair Value      
Financial Assets      
Mortgage loans, net 1,954 1,979  
Policy loans 0 0  
Receivables 5,942 6,012  
Restricted and segregated cash 0 0  
Other investments and assets 60 57  
Financial Liabilities      
Policyholder account balances, future policy benefits and claims 20,608 19,636  
Investment certificate reserves 7,523 8,128  
Banking and brokerage deposits 0 0  
Debt and other liabilities 3 3  
Ameriprise Financial | Level 3 | Fair Value | Investment contracts      
Financial Liabilities      
Separate account liabilities - investment contracts $ 0 $ 0