SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF REGISTRANT (Parent Company Only) - Notes - Guarantees, Commitments and Contingencies (Details) - Ameriprise Financial, Inc. - Subsidiaries - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Revolving credit lending agreements with subsidiaries | ||
| Guarantees, Commitments and Contingencies | ||
| Revolving credit agreement lending commitment | $ 365 | $ 363 |
| Loan to subsidiary | 99 | $ 99 |
| Ameriprise Certificate Company Capital Support Agreement | ||
| Guarantees, Commitments and Contingencies | ||
| Maximum commitment under Capital Support Agreement | 50 | |
| AFS Financial Industry Regulatory Authority approved subordinated loan agreement | ||
| Guarantees, Commitments and Contingencies | ||
| Face amount of borrowing arrangement | 200 | |
| AEIS FINRA approved subordinated loan agreement | ||
| Guarantees, Commitments and Contingencies | ||
| Loan to subsidiary | $ 60 | |
| Loan to subsidiary term | 5 years | |
| Loan to subsidiary, renewal option term | 1 year |