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NET INCOME PER SHARE (Tables)
3 Months Ended
Mar. 31, 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 March 31,
 20252024
Numerator:
Net income attributable to Intuitive Surgical, Inc.$698.4 $544.9 
Denominator:
Weighted-average shares outstanding used in basic calculation357.5 353.5 
Add: dilutive effect of potential common shares7.1 7.0 
Weighted-average shares outstanding used in diluted calculation364.6 360.5 
Net income per share attributable to Intuitive Surgical, Inc.:
Basic$1.95 $1.54 
Diluted$1.92 $1.51