Investments (AFS contractual maturity) (Details 9) - Ameriprise Financial [Member] - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Amortized cost
Due within one year	$ 1,834
Due after one year through five years	6,570
Due after five years through 10 years	5,313
Due after 10 years	4,589
Total having single maturity dates	18,306
Amortized cost	27,893	$ 28,066
Fair value
Due within one year	1,853
Due after one year through five years	6,985
Due after five years through 10 years	5,397
Due after 10 years	5,224
Total having single maturity dates	19,459
Fair value	29,286	30,027
Residential mortgage backed securities [Member]
Amortized cost
Without single maturity dates	5,925
Amortized cost	5,925	6,099
Fair value
Without single maturity dates	6,008
Fair value	6,008	6,207
Commercial mortgage backed securities [Member]
Amortized cost
Without single maturity dates	2,395
Amortized cost	2,395	2,513
Fair value
Without single maturity dates	2,499
Fair value	2,499	2,630
Asset backed securities [Member]
Amortized cost
Without single maturity dates	1,259
Amortized cost	1,259	1,417
Fair value
Without single maturity dates	1,302
Fair value	1,302	1,470
Common stocks [Member]
Amortized cost
Without single maturity dates	8
Amortized cost	8	8
Fair value
Without single maturity dates	18
Fair value	$ 18	$ 18