Earnings per Share Attributable to Ameriprise Financial, Inc. Common Shareholders (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Schedule of earnings per common share [Table Text Block]

The computation of basic and diluted earnings per share is as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
	(in millions, except per share amounts)
Numerator:
Net income	$	462	$	393	$	1,056	$	796
Denominator:
Basic: Weighted-average common shares outstanding	147.0		155.1		148.2		156.3
Effect of potentially dilutive nonqualified stock options and other share-based awards	2.0		2.4		2.3		2.5
Diluted: Weighted-average common shares outstanding	149.0		157.5		150.5		158.8
Earnings per share:
Basic	$	3.14	$	2.53	$	7.13	$	5.09
Diluted	$	3.10	$	2.50	$	7.02	$	5.01