Investments (OCI rollforward) (Details 7) - Ameriprise Financial [Member] - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014
Net unrealized securities gains/losses, gross [Member]
Rollforward of the net unrealized securities gains (losses) on Available-for-Sale securities included in accumulated other comprehensive income
Balance at the beginning of the period		$ 1,216	$ 1,016
Net unrealized securities gains (losses) arising during the period	[1]	(562)	526
Reclassification of net securities (gains) losses included in net income		(6)	(12)
Impact of other adjustments		281	(258)
Balance at the end of the period		929	1,272
Deferred income tax [Member]
Rollforward of the net unrealized securities gains (losses) on Available-for-Sale securities included in accumulated other comprehensive income
Balance at the beginning of the period		(430)	(361)
Net unrealized securities (gains) losses arising during the period	[1]	197	(185)
Reclassification of net securities gains (losses) included in net income		2	4
Impact of other adjustments		(98)	90
Balance at the end of the period		(329)	(452)
Net unrealized securities gains/losses, net of tax [Member]
Rollforward of the net unrealized securities gains (losses) on Available-for-Sale securities included in accumulated other comprehensive income
Balance at the beginning of the period		786	655
Net unrealized securities gains (losses) arising during the period	[1]	(365)	341
Reclassification of net securities (gains) losses included in net income		(4)	(8)
Impact of other adjustments		183	(168)
Balance at the end of the period	[2]	600	820
Noncredit related impairments on securities and net unrealized securities losses on previously impaired securities, included in accumulated other comprehensive income		$ 6	$ 5

[1] Includes other-than-temporary impairment losses on Available-for-Sale securities related to factors other than credit that were recognized in other comprehensive income (loss) during the period.

[2] Includes $6 million and $5 million of noncredit related impairments on securities and net unrealized securities gains on previously impaired securities at September 30, 2015 and 2014, respectively.