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NET INCOME PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2025
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 June 30, |  | Six Months Ended June 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
Numerator: |  |  |  |  |  |  |
Net income attributable to Intuitive Surgical, Inc. | $ | 658.4 |  |  | $ | 526.9 |  |  | $ | 1,356.8 |  |  | $ | 1,071.8 |
Denominator: |  |  |  |  |  |  |
Weighted-average shares outstanding used in basic calculation | 358.5 |  |  | 355.0 |  |  | 358.0 |  |  | 354.2 |
Add: dilutive effect of potential common shares | 5.6 |  |  | 6.0 |  |  | 6.4 |  |  | 6.6 |
Weighted-average shares outstanding used in diluted calculation | 364.1 |  |  | 361.0 |  |  | 364.4 |  |  | 360.8 |
Net income per share attributable to Intuitive Surgical, Inc.: |  |  |  |  |  |  |
Basic | $ | 1.84 |  |  | $ | 1.48 |  |  | $ | 3.79 |  |  | $ | 3.03 |
Diluted | $ | 1.81 |  |  | $ | 1.46 |  |  | $ | 3.72 |  |  | $ | 2.97 |

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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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