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Condensed Consolidated Statements of Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue:
Product	$ 694.8	$ 541.6
Service	152.7	138.0
Total revenue	847.5	679.6
Cost of revenue:
Product	201.5	165.5
Service	52.2	44.3
Total cost of revenue	253.7	209.8
Gross profit	593.8	469.8
Operating expenses:
Selling, general and administrative	221.6	202.9
Research and development	95.5	73.5
Total operating expenses	317.1	276.4
Income from operations	276.7	193.4
Interest and other income, net	13.2	8.7
Income before taxes	289.9	202.1
Income tax expense	2.6	21.3
Net income	287.3	180.8
Less: net loss attributable to noncontrolling interest	(0.3)	0.0
Net income attributable to Intuitive Surgical, Inc.	$ 287.6	$ 180.8
Net income per share attributable to Intuitive Surgical, Inc.:
Basic (in dollars per share)	$ 2.55	$ 1.62
Diluted (in dollars per share)	$ 2.44	$ 1.57
Shares used in computing net income per share attributable to Intuitive Surgical, Inc.:
Basic (in shares)	112.8	111.9
Diluted (in shares)	118.0	115.5
Total comprehensive income attributable to Intuitive Surgical, Inc.	$ 285.0	$ 181.7

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