The following table sets forth the computation of basic earnings per common share and diluted earnings per common share for the years ended December 31: | | | | | | | | | | | | | | 2019 | | 2018 | | 2017 | | (In millions, except per share data) | Numerator: | | | | | | Income from continuing operations | $ | 1,582 |
| | $ | 1,568 |
| | $ | 1,241 |
| Preferred stock dividends | (79 | ) | | (64 | ) | | (64 | ) | Income from continuing operations available to common shareholders | 1,503 |
| | 1,504 |
| | 1,177 |
| Income from discontinued operations, net of tax | — |
| | 191 |
| | 22 |
| Net income available to common shareholders | $ | 1,503 |
| | $ | 1,695 |
| | $ | 1,199 |
| Denominator: | | | | | | Weighted-average common shares outstanding—basic | 995 |
| | 1,092 |
| | 1,186 |
| Potential common shares | 4 |
| | 10 |
| | 12 |
| Weighted-average common shares outstanding—diluted | 999 |
| | 1,102 |
| | 1,198 |
| Earnings per common share from continuing operations available to common shareholders(1): | | | | | | Basic | $ | 1.51 |
| | $ | 1.38 |
| | $ | 0.99 |
| Diluted | 1.50 |
| | 1.36 |
| | 0.98 |
| Earnings per common share from discontinued operations(1): | | | | | | Basic | $ | 0.00 |
| | $ | 0.18 |
| | $ | 0.02 |
| Diluted | 0.00 |
| | 0.17 |
| | 0.02 |
| Earnings per common share(1): | | | | | | Basic | $ | 1.51 |
| | $ | 1.55 |
| | $ | 1.01 |
| Diluted | 1.50 |
| | 1.54 |
| | 1.00 |
|
________ (1) Certain per share amounts may not appear to reconcile due to rounding.
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