v3.26.1
Fair Values of Assets and Liabilities - Significant Unobservable inputs (Details)
$ in Millions
Mar. 31, 2026
USD ($)
Dec. 31, 2025
USD ($)
Significant unobservable inputs used in fair value measurements    
Liabilities: embedded derivatives, net $ 4,283 $ 4,983
Ameriprise Financial    
Significant unobservable inputs used in fair value measurements    
Available-for-Sale securities, at fair value 54,036 53,591
Ameriprise Financial | Corporate debt securities    
Significant unobservable inputs used in fair value measurements    
Available-for-Sale securities, at fair value 16,358 15,842
Ameriprise Financial | Asset backed securities    
Significant unobservable inputs used in fair value measurements    
Available-for-Sale securities, at fair value 3,548 3,753
Ameriprise Financial | Level 3 | Corporate debt securities    
Significant unobservable inputs used in fair value measurements    
Available-for-Sale securities, at fair value 708 708
Ameriprise Financial | Level 3 | Asset backed securities    
Significant unobservable inputs used in fair value measurements    
Available-for-Sale securities, at fair value 1 1
Ameriprise Financial | Level 3 | Fixed deferred indexed annuities ceded embedded derivatives    
Significant unobservable inputs used in fair value measurements    
Receivables: embedded derivatives 53 59
Ameriprise Financial | Level 3 | Fixed deferred indexed annuities embedded derivatives    
Significant unobservable inputs used in fair value measurements    
Liabilities: embedded derivatives 52 58
Ameriprise Financial | Level 3 | IUL embedded derivatives    
Significant unobservable inputs used in fair value measurements    
Liabilities: embedded derivatives 1,002 1,042
Ameriprise Financial | Level 3 | Structured variable annuity embedded derivatives    
Significant unobservable inputs used in fair value measurements    
Liabilities: embedded derivatives, net 3,226 3,879
Ameriprise Financial | Level 3 | Contingent consideration liabilities    
Significant unobservable inputs used in fair value measurements    
Other liabilities, fair value $ 78 $ 71
Ameriprise Financial | Level 3 | Discounted cash flow | Corporate debt securities | Minimum | Yield/spread to U.S. Treasuries    
Significant unobservable inputs used in fair value measurements    
Available-for-sale securities, measurement inputs 0.009 0.009
Ameriprise Financial | Level 3 | Discounted cash flow | Corporate debt securities | Maximum | Yield/spread to U.S. Treasuries    
Significant unobservable inputs used in fair value measurements    
Available-for-sale securities, measurement inputs 0.017 0.016
Ameriprise Financial | Level 3 | Discounted cash flow | Corporate debt securities | Weighted Average | Yield/spread to U.S. Treasuries    
Significant unobservable inputs used in fair value measurements    
Available-for-sale securities, measurement inputs 0.012 0.012
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Annual short-term default rate    
Significant unobservable inputs used in fair value measurements    
Available-for-sale securities, measurement inputs 0.030 0.030
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Annual long-term default rate    
Significant unobservable inputs used in fair value measurements    
Available-for-sale securities, measurement inputs 0.035 0.035
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Discount rate    
Significant unobservable inputs used in fair value measurements    
Available-for-sale securities, measurement inputs 0.150 0.150
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Constant prepayment rate    
Significant unobservable inputs used in fair value measurements    
Available-for-sale securities, measurement inputs 0.200 0.200
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Loss recovery    
Significant unobservable inputs used in fair value measurements    
Available-for-sale securities, measurement inputs 0.600 0.600
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Weighted Average | Annual short-term default rate    
Significant unobservable inputs used in fair value measurements    
Available-for-sale securities, measurement inputs 0.030 0.030
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Weighted Average | Annual long-term default rate    
Significant unobservable inputs used in fair value measurements    
Available-for-sale securities, measurement inputs 0.035 0.035
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Weighted Average | Discount rate    
Significant unobservable inputs used in fair value measurements    
Available-for-sale securities, measurement inputs 0.150 0.150
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Weighted Average | Constant prepayment rate    
Significant unobservable inputs used in fair value measurements    
Available-for-sale securities, measurement inputs 0.200 0.200
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Weighted Average | Loss recovery    
Significant unobservable inputs used in fair value measurements    
Available-for-sale securities, measurement inputs 0.600 0.600
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities ceded embedded derivatives | Minimum | Surrender rate    
Significant unobservable inputs used in fair value measurements    
Embedded derivative asset, measurement input 0.005 0.005
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities ceded embedded derivatives | Maximum | Surrender rate    
Significant unobservable inputs used in fair value measurements    
Embedded derivative asset, measurement input 0.935 0.898
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities ceded embedded derivatives | Weighted Average | Surrender rate    
Significant unobservable inputs used in fair value measurements    
Embedded derivative asset, measurement input 0.090 0.051
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities embedded derivatives | Nonperformance risk    
Significant unobservable inputs used in fair value measurements    
Embedded derivative liability, measurement input 0.0075 0.0065
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities embedded derivatives | Minimum | Surrender rate    
Significant unobservable inputs used in fair value measurements    
Embedded derivative liability, measurement input 0.005 0.005
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities embedded derivatives | Maximum | Surrender rate    
Significant unobservable inputs used in fair value measurements    
Embedded derivative liability, measurement input 0.935 0.898
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities embedded derivatives | Weighted Average | Surrender rate    
Significant unobservable inputs used in fair value measurements    
Embedded derivative liability, measurement input 0.090 0.051
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities embedded derivatives | Weighted Average | Nonperformance risk    
Significant unobservable inputs used in fair value measurements    
Embedded derivative liability, measurement input 0.0075 0.0065
Ameriprise Financial | Level 3 | Discounted cash flow | IUL embedded derivatives | Nonperformance risk    
Significant unobservable inputs used in fair value measurements    
Embedded derivative liability, measurement input 0.0075 0.0065
Ameriprise Financial | Level 3 | Discounted cash flow | IUL embedded derivatives | Weighted Average | Nonperformance risk    
Significant unobservable inputs used in fair value measurements    
Embedded derivative liability, measurement input 0.0075 0.0065
Ameriprise Financial | Level 3 | Discounted cash flow | Structured variable annuity embedded derivatives | Nonperformance risk    
Significant unobservable inputs used in fair value measurements    
Embedded derivative liability, measurement input 0.0075 0.0065
Ameriprise Financial | Level 3 | Discounted cash flow | Structured variable annuity embedded derivatives | Minimum | Surrender rate    
Significant unobservable inputs used in fair value measurements    
Embedded derivative liability, measurement input 0.005 0.005
Ameriprise Financial | Level 3 | Discounted cash flow | Structured variable annuity embedded derivatives | Maximum | Surrender rate    
Significant unobservable inputs used in fair value measurements    
Embedded derivative liability, measurement input 0.745 0.750
Ameriprise Financial | Level 3 | Discounted cash flow | Structured variable annuity embedded derivatives | Weighted Average | Surrender rate    
Significant unobservable inputs used in fair value measurements    
Embedded derivative liability, measurement input 0.022 0.020
Ameriprise Financial | Level 3 | Discounted cash flow | Structured variable annuity embedded derivatives | Weighted Average | Nonperformance risk    
Significant unobservable inputs used in fair value measurements    
Embedded derivative liability, measurement input 0.0075 0.0065
Ameriprise Financial | Level 3 | Discounted cash flow | Contingent consideration liabilities | Minimum | Discount rate    
Significant unobservable inputs used in fair value measurements    
Other liabilities, measurement input 0.000 0.000
Ameriprise Financial | Level 3 | Discounted cash flow | Contingent consideration liabilities | Maximum | Discount rate    
Significant unobservable inputs used in fair value measurements    
Other liabilities, measurement input 0.105 0.105
Ameriprise Financial | Level 3 | Discounted cash flow | Contingent consideration liabilities | Weighted Average | Discount rate    
Significant unobservable inputs used in fair value measurements    
Other liabilities, measurement input 0.022 0.024