v3.25.4
Investments - Additional Information (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Summary of investments    
Available -for-sale securities with gross unrealized losses considered investment grade 96.00% 97.00%
Ameriprise Financial    
Summary of investments    
Accrued interest excluded from amortized cost basis $ 332 $ 326
Accrued interest excluded from amortized cost basis, location Receivables Receivables
Fixed maturity securities rated internally $ 662 $ 508
Holdings of single issuer greater than 10% of equity $ 0 $ 0
Ameriprise Financial | Total investments | Credit concentration risk    
Summary of investments    
Concentration risk 92.00% 92.00%
Ameriprise Financial | Fixed maturity securities | Credit concentration risk | AA | GNMA, FNMA and FHLMC mortgage backed securities.    
Summary of investments    
Concentration risk 86.00%  
Ameriprise Financial | Fixed maturity securities | Credit concentration risk | AAA | GNMA, FNMA and FHLMC mortgage backed securities.    
Summary of investments    
Concentration risk   82.00%