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EARNINGS PER SHARE | 12 Months Ended
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Dec. 31, 2023
Earnings Per Share [Abstract] |
EARNINGS PER SHARE | NOTE 6. EARNINGS PER SHARE Basic and diluted net income (loss) per share are computed by dividing net income (loss) by the weighted-average number of common shares outstanding. Diluted net income (loss) per share reflects the dilutive effect of stock-based compensation.
| Years ended December 31,
| 2023 |  | 2022 |  | 2021
Computation of Net Income per Share | (In millions, except per share data)
Net income | $ | 452.0 |  |  | $ | 1,326.9 |  |  | $ | 1,296.7 |
Net loss attributable to noncontrolling interests | (8.2) |  |  | — |  |  | — |
Net income attributable to Olin Corporation | 460.2 |  |  | 1,326.9 |  |  | 1,296.7 |
Basic shares | 125.9 |  |  | 144.9 |  |  | 159.1 |
Basic net income attributable to Olin Corporation per share | $ | 3.66 |  |  | $ | 9.16 |  |  | $ | 8.15 |
Diluted shares: |  |  |  |  |
Basic shares | 125.9 |  |  | 144.9 |  |  | 159.1 |
Stock-based compensation | 2.9 |  |  | 3.6 |  |  | 3.9 |
Diluted shares | 128.8 |  |  | 148.5 |  |  | 163.0 |
Diluted net income attributable to Olin Corporation per share | $ | 3.57 |  |  | $ | 8.94 |  |  | $ | 7.96 |
The computation of dilutive shares from stock-based compensation does not include 1.2 million, 0.8 million and 0.1 million shares in 2023, 2022 and 2021, respectively, as their effect would have been anti-dilutive.

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