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Earnings per Share Attributable to Ameriprise Financial, Inc. Common Shareholders | 12 Months Ended
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Dec. 31, 2019
Earnings Per Share [Abstract] |
Earnings per Share Attributable to Ameriprise Financial, Inc. Common Shareholders | Earnings per Share The computations of basic and diluted earnings per share is as follows:
| Years Ended December 31,
2019 |  | 2018 |  | 2017
(in millions, except per share amounts)
Numerator: |  |  |  |  |
Net income | $ | 1,893 |  |  | $ | 2,098 |  |  | $ | 1,480 |
Denominator: |  |  |  |  |
Basic: Weighted-average common shares outstanding | 134.1 |  |  | 145.6 |  |  | 154.1 |
Effect of potentially dilutive nonqualified stock options and other share-based awards | 1.9 |  |  | 2.1 |  |  | 2.6 |
Diluted: Weighted-average common shares outstanding | 136.0 |  |  | 147.7 |  |  | 156.7 |
Earnings per share attributable to Ameriprise Financial, Inc. common shareholders: |  |  |  |  |
Basic | $ | 14.12 |  |  | $ | 14.41 |  |  | $ | 9.60 |
Diluted | $ | 13.92 |  |  | $ | 14.20 |  |  | $ | 9.44 |
The calculation of diluted earnings per share excludes the incremental effect of 1.0 million, 3.2 million and nil options as of December 31, 2019, 2018 and 2017, respectively, due to their anti-dilutive effect.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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