Earnings Per Common Share The following table sets forth the computation of basic and diluted earnings per common share (EPS) (in millions, except share and per share amounts): | | | | | | | | | | | | | | Year Ended December 31, | | 2017 | | 2016 | | 2015 | Basic EPS: | | | | | | Net income | $ | 1,919 |
| | $ | 2,676 |
| | $ | 7,610 |
| Weighted average common shares outstanding (in thousands) | 489,164 |
| | 552,308 |
| | 668,393 |
| Basic EPS | $ | 3.92 |
| | $ | 4.85 |
| | $ | 11.39 |
| | | | | | | Diluted EPS: | | | | | | Net income for purposes of computing diluted EPS | $ | 1,919 |
| | $ | 2,676 |
| | $ | 7,610 |
| Share computation for diluted EPS (in thousands): | | | | | | Basic weighted average common shares outstanding | 489,164 |
| | 552,308 |
| | 668,393 |
| Dilutive effect of stock awards | 2,528 |
| | 3,791 |
| | 18,962 |
| Diluted weighted average common shares outstanding | 491,692 |
| | 556,099 |
| | 687,355 |
| Diluted EPS | $ | 3.90 |
| | $ | 4.81 |
| | $ | 11.07 |
| | | | | | | Restricted stock unit awards excluded from the calculation of diluted EPS because inclusion would be antidilutive (in thousands) | 328 |
| | 1,429 |
| | 764 |
|
|