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Investments (Details 5) (Ameriprise Financial, USD $)
In Millions
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Gross realized gains from sales $ 21 $ 7 $ 39 $ 40
Gross realized losses from sales (1)   (18) (1)
Other-than-temporary impairments (16) (1) (18) (31)
Amortized cost, debt maturities, single maturity date 31,675   31,675  
Fair value, debt maturities, single maturity date 33,348   33,348  
Net recognized gains related to trading securities 2 7 5 9
Residential mortgage backed securities
       
Amortized cost, debt maturities, single maturity date 7,647   7,647  
Fair value, debt maturities, single maturity date 7,712   7,712  
Commercial mortgage backed securities
       
Amortized cost, debt maturities, single maturity date 4,453   4,453  
Fair value, debt maturities, single maturity date 4,735   4,735  
Asset backed securities
       
Amortized cost, debt maturities, single maturity date 2,020   2,020  
Fair value, debt maturities, single maturity date 2,063   2,063  
Common and Preferred Stocks
       
Amortized cost, debt maturities, single maturity date 6   6  
Fair value, debt maturities, single maturity date 10   10  
Available-for-Sale Securities
       
Amortized cost, due within one year 903   903  
Amortized cost, due after one year through five years 5,690   5,690  
Amortized cost, due after five years through 10 years 6,287   6,287  
Amortized cost, due after 10 years 4,669   4,669  
Amortized cost, debt maturities, single maturity date 17,549   17,549  
Fair value, due within one year 920   920  
Fair value, due after one year through five years 6,043   6,043  
Fair value, due after five years through 10 years 6,829   6,829  
Fair value, due after 10 years 5,036   5,036  
Fair value, debt maturities, single maturity date $ 18,828   $ 18,828