The calculation of basic and diluted earnings per share is shown below for the years ended December 31, (in millions, except per share data): | | | | | | | | | | | | | | 2011 | | 2010 | | 2009 | Numerator for basic and diluted earnings per share: | | | | | | Income from continuing operations | $ | 134.6 |
| | $ | 288.2 |
| | $ | 285.8 |
| (Loss) income from discontinued operations | (9.4 | ) | | 4.6 |
| | (0.3 | ) | Net income | $ | 125.2 |
| | $ | 292.8 |
| | $ | 285.5 |
| Dividends and equivalents for share-based awards expected to be forfeited | 0.1 |
| | 0.1 |
| | 0.2 |
| Net income for basic earnings per share | $ | 125.3 |
| | $ | 292.9 |
| | $ | 285.7 |
| Effect of Preferred Securities (1) | — |
| | — |
| | — |
| Net income for diluted earnings per share | $ | 125.3 |
| | $ | 292.9 |
| | $ | 285.7 |
| Denominator for basic and diluted earnings per share: | | | | | | Weighted-average shares outstanding | 290.5 |
| | 279.3 |
| | 277.7 |
| Share-based payment awards classified as participating securities | 3.1 |
| | 3.1 |
| | 3.1 |
| Denominator for basic earnings per share | 293.6 |
| | 282.4 |
| | 280.8 |
| Dilutive securities (2) | 2.4 |
| | 2.5 |
| | 1.1 |
| Convertible Notes (3) | 0.2 |
| | 13.1 |
| | 9.0 |
| Warrants (4) | — |
| | 7.4 |
| | 3.5 |
| Preferred Securities (1) | — |
| | — |
| | — |
| Denominator for diluted earnings per share | 296.2 |
| | 305.4 |
| | 294.4 |
| Basic earnings per share: | | | | | | Income from continuing operations | $ | 0.46 |
| | $ | 1.02 |
| | $ | 1.02 |
| (Loss) income from discontinued operations | (0.03 | ) | | 0.02 |
| | — |
| Net income | $ | 0.43 |
| | $ | 1.04 |
| | $ | 1.02 |
| Diluted earnings per share: | | | | | | Income from continuing operations | $ | 0.45 |
| | $ | 0.94 |
| | $ | 0.97 |
| (Loss) income from discontinued operations | (0.03 | ) | | 0.02 |
| | — |
| Net income | $ | 0.42 |
| | $ | 0.96 |
| | $ | 0.97 |
|
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