Earnings per Share Attributable to Ameriprise Financial, Inc. Common Shareholders (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Numerator:
Income from continuing operations	$ 448	$ 152	$ 1,096	$ 572
Less: Net income (loss) attributable to noncontrolling interests	67	(22)	57	(71)
Income from continuing operations attributable to Ameriprise Financial	381	174	1,039	643
Income (loss) from discontinued operations, net of tax	1	(1)	(1)	(3)
Net income attributable to Ameriprise Financial	$ 382	$ 173	$ 1,038	$ 640
Denominator:
Basic: Weighted-average common shares outstanding	201.3	215.0	204.8	221.3
Effect of potentially dilutive nonqualified stock options and other share-based awards (in shares)	3.8	4.1	3.9	4.1
Diluted: Weighted-average common shares outstanding	205.1	219.1	208.7	225.4
Basic:
Income from continuing operations (in dollars per share)	$ 1.90	$ 0.81	$ 5.07	$ 2.91
Loss from discontinued operations (in dollars per share)		$ (0.01)		$ (0.02)
Net income (in dollars per share)	$ 1.90	$ 0.80	$ 5.07	$ 2.89
Diluted:
Income from continuing operations (in dollars per share)	$ 1.86	$ 0.79	$ 4.97	$ 2.85
Loss from discontinued operations (in dollars per share)				$ (0.01)
Net income (in dollars per share)	$ 1.86	$ 0.79	$ 4.97	$ 2.84
Effect of potentially dilutive nonqualified stock options and other share-based awards (in shares)			0	3.3