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NET INCOME PER SHARE (Tables) | 9 Months Ended
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Sep. 30, 2024
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Net Income Per Share | The following table presents the computation of basic and diluted net income per share attributable to Intuitive Surgical, Inc. (in millions, except per share amounts):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
Numerator: |  |  |  |  |  |  |
Net income attributable to Intuitive Surgical, Inc. | $ | 565.1 |  |  | $ | 415.7 |  |  | $ | 1,636.9 |  |  | $ | 1,191.8 |
Denominator: |  |  |  |  |  |  |
Weighted-average shares outstanding used in basic calculation | 355.8 |  |  | 351.7 |  |  | 354.8 |  |  | 351.0 |
Add: dilutive effect of potential common shares | 6.9 |  |  | 6.5 |  |  | 6.6 |  |  | 6.1 |
Weighted-average shares outstanding used in diluted calculation | 362.7 |  |  | 358.2 |  |  | 361.4 |  |  | 357.1 |
Net income per share attributable to Intuitive Surgical, Inc.: |  |  |  |  |  |  |
Basic | $ | 1.59 |  |  | $ | 1.18 |  |  | $ | 4.61 |  |  | $ | 3.40 |
Diluted | $ | 1.56 |  |  | $ | 1.16 |  |  | $ | 4.53 |  |  | $ | 3.34 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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