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

12 Months Ended

Dec. 31, 2017

Earnings Per Share [Abstract]

Schedule of Earnings per Common Share

The computations of basicanddiluted earnings per shareattributabletoAmeripriseFinancial,Inc.commonshareholders areasfollows:

	Years Ended December 31,
	2017		2016		2015
	(in millions, except per share amounts)
Numerator:
Net income	$	1,480	$	1,314	$	1,687
Less: Net income attributable to noncontrolling interests	—		—		125
Net income attributable to Ameriprise Financial	$	1,480	$	1,314	$	1,562
Denominator:
Basic: Weighted-average common shares outstanding	154.1		166.3		181.7
Effect of potentially dilutive nonqualified stock options and other share-based awards	2.6		1.9		2.5
Diluted: Weighted-average common shares outstanding	156.7		168.2		184.2
Earnings per share attributable to Ameriprise Financial, Inc. common shareholders:
Basic	$	9.60	$	7.90	$	8.60
Diluted	$	9.44	$	7.81	$	8.48