The computations of basic earnings per common share follow:
| Year Ended December 31 | ||||||||||||
| 2013 | 2012 | 2011 | ||||||||||
| (In thousands, except per share) | ||||||||||||
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Income available to common shareholders: |
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Net income |
$ | 1,138,480 | $ | 1,029,498 | $ | 859,479 | ||||||
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Less: Preferred stock dividends(a) |
(54,120 | ) | (53,450 | ) | (45,839 | ) | ||||||
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Amortization of preferred stock discount(a) |
(7,942 | ) | (8,026 | ) | (20,018 | ) | ||||||
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Net income available to common equity |
1,076,418 | 968,022 | 793,622 | |||||||||
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Less: Income attributable to unvested stock-based compensation awards |
(13,989 | ) | (14,632 | ) | (11,879 | ) | ||||||
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Net income available to common shareholders |
$ | 1,062,429 | $ | 953,390 | $ | 781,743 | ||||||
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Weighted-average shares outstanding: |
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Common shares outstanding (including common stock issuable) and unvested stock-based compensation awards |
130,354 | 127,793 | 124,524 | |||||||||
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Less: Unvested stock-based compensation awards |
(1,700 | ) | (1,929 | ) | (1,861 | ) | ||||||
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Weighted-average shares outstanding |
128,654 | 125,864 | 122,663 | |||||||||
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Basic earnings per common share |
$ | 8.26 | $ | 7.57 | $ | 6.37 | ||||||
| (a) | Including impact of not as yet declared cumulative dividends. |