Investments (AFS contractual maturity) (Details 8) - Ameriprise Financial [Member] - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Amortized cost
Due within one year	$ 1,179
Due after one year through five years	7,350
Due after five years through 10 years	5,018
Due after 10 years	4,557
Total having single maturity dates	18,104
Amortized cost	28,054	$ 27,752
Fair value
Due within one year	1,186
Due after one year through five years	7,754
Due after five years through 10 years	5,152
Due after 10 years	5,227
Total having single maturity dates	19,319
Fair value	29,480	28,673
Residential mortgage backed securities [Member]
Amortized cost
Without single maturity dates	6,073
Amortized cost	6,073	5,933
Fair value
Without single maturity dates	6,138
Fair value	6,138	5,973
Commercial mortgage backed securities [Member]
Amortized cost
Without single maturity dates	2,509
Amortized cost	2,509	2,400
Fair value
Without single maturity dates	2,617
Fair value	2,617	2,456
Asset backed securities [Member]
Amortized cost
Without single maturity dates	1,361
Amortized cost	1,361	1,273
Fair value
Without single maturity dates	1,389
Fair value	1,389	1,296
Common stocks [Member]
Amortized cost
Without single maturity dates	7
Amortized cost	7	7
Fair value
Without single maturity dates	17
Fair value	$ 17	$ 18