Investments (AFS contractual maturity) (Details 9) - Ameriprise Financial [Member] - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Amortized cost
Due within one year	$ 1,827
Due after one year through five years	6,379
Due after five years through 10 years	5,329
Due after 10 years	4,567
Total having single maturity dates	18,102
Amortized cost	27,927	$ 28,066
Fair value
Due within one year	1,852
Due after one year through five years	6,827
Due after five years through 10 years	5,471
Due after 10 years	5,254
Total having single maturity dates	19,404
Fair value	29,427	30,027
Residential mortgage backed securities [Member]
Amortized cost
Without single maturity dates	6,056
Amortized cost	6,056	6,099
Fair value
Without single maturity dates	6,121
Fair value	6,121	6,207
Commercial mortgage backed securities [Member]
Amortized cost
Without single maturity dates	2,479
Amortized cost	2,479	2,513
Fair value
Without single maturity dates	2,562
Fair value	2,562	2,630
Asset backed securities [Member]
Amortized cost
Without single maturity dates	1,282
Amortized cost	1,282	1,417
Fair value
Without single maturity dates	1,321
Fair value	1,321	1,470
Common stocks [Member]
Amortized cost
Without single maturity dates	8
Amortized cost	8	8
Fair value
Without single maturity dates	19
Fair value	$ 19	$ 18