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NET INCOME PER SHARE - Computation of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net income attributable to Intuitive Surgical, Inc.	$ 365.6	$ 426.3
Denominator:
Weighted average shares outstanding used in basic calculation	358.4	354.2
Add: dilutive effect of potential common shares	8.3	9.8
Weighted average shares outstanding used in diluted calculation	366.7	364.0
Net income per share attributable to Intuitive Surgical, Inc.:
Basic (in dollars per share)	$ 1.02	$ 1.20
Diluted (in dollars per share)	$ 1.00	$ 1.17

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-Paragraph 16
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No definition available.

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1448-109256

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