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Investments - Available-for-Sale Securities by Contractual Maturity (Details) - Ameriprise Financial - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Amortized cost    
Due within one year $ 4,561  
Due after one year through five years 2,468  
Due after five years through 10 years 4,611  
Due after 10 years 5,254  
Total having single maturity dates 16,894  
Amortized Cost 53,968 $ 53,048
Fair value    
Due within one year 4,551  
Due after one year through five years 2,412  
Due after five years through 10 years 4,289  
Due after 10 years 5,373  
Total having single maturity dates 16,625  
Fair Value 52,246 51,562
Residential mortgage backed securities    
Amortized cost    
Without single maturity dates 22,585  
Amortized Cost 22,585 22,130
Fair value    
Without single maturity dates 21,442  
Fair Value 21,442 21,066
Commercial mortgage backed securities    
Amortized cost    
Without single maturity dates 6,312  
Amortized Cost 6,312 6,380
Fair value    
Without single maturity dates 6,023  
Fair Value 6,023 6,050
Asset backed securities    
Amortized cost    
Without single maturity dates 8,177  
Amortized Cost 8,177 8,353
Fair value    
Without single maturity dates 8,156  
Fair Value $ 8,156 $ 8,319