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Investments - Available-for-Sale Securities by Contractual Maturity (Details) - Ameriprise Financial - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Amortized Cost    
Due within one year $ 2,576  
Due after one year through five years 2,506  
Due after five years through 10 years 3,609  
Due after 10 years 4,581  
Total having single maturity dates 13,272  
Amortized Cost 43,384 $ 30,541
Fair Value    
Due within one year 2,573  
Due after one year through five years 2,424  
Due after five years through 10 years 3,105  
Due after 10 years 4,530  
Total having single maturity dates 12,632  
Fair Value 40,811 32,050
Residential mortgage backed securities    
Amortized Cost    
Without single maturity dates 17,056  
Amortized Cost 17,056 10,927
Fair Value    
Without single maturity dates 15,703  
Fair Value 15,703 10,944
Commercial mortgage backed securities    
Amortized Cost    
Without single maturity dates 6,648  
Amortized Cost 6,648 4,950
Fair Value    
Without single maturity dates 6,212  
Fair Value 6,212 4,986
Asset backed securities    
Amortized Cost    
Without single maturity dates 6,408  
Amortized Cost 6,408 3,639
Fair Value    
Without single maturity dates 6,264  
Fair Value $ 6,264 $ 3,654