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Preferred stock, par value (usd per share) Preferred Stock, Par or Stated Value Per Share 2026 Lessee, Operating Lease, Liability, to be Paid, Year Four Income Statement [Abstract] Income Statement [Abstract] Deferred income taxes, Federal Deferred Federal Income Tax Expense (Benefit) Additional Paid-In Capital Additional Paid-in Capital [Member] Document Fiscal Period Focus Document Fiscal Period Focus Aggregate intrinsic value of options exercised under stock option plans Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Diluted (shares) Weighted-average shares used in computing diluted net income per share (shares) Weighted Average Number of Shares Outstanding, Diluted Details of the Inventory Balance Sheet Item Schedule of Inventory, Current [Table Text Block] Expected term (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Schedule of Available-for-sale 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yet Paid Foreign exchange gains (losses) related to balance sheet re-measurement Foreign Currency Transaction Gain (Loss), before Tax Debt Securities, Trading, and Equity Securities, FV-NI Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Sales-type Lease, Net Investment in Lease, Credit Quality Indicator [Table] Sales-type Lease, Net Investment in Lease, Credit Quality Indicator [Table] Investments Investment, Policy [Policy Text Block] Employee stock purchase plan, value of shares issued Stock Issued During Period, Value, Employee Stock Purchase Plan Total comprehensive income attributable to Intuitive Surgical, Inc. 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12-09, Allowance, Credit Loss [Member] Weighted-Average Grant Date Fair Value Per Share Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Other accrued liabilities Other Accrued Liabilities, Current Credit Loss, Financial Instrument Credit Loss, Financial Instrument [Policy Text Block] Exercise Price Range 8 Range Eight [Member] Range Eight Changes in fair value Equity Securities without Readily Determinable Fair Value, Unrealized Gain (Loss) Equity Securities without Readily Determinable Fair Value, Unrealized Gain (Loss) Options Exercisable, Weighted Average Exercise Price Per Share (usd per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price Retirement Benefits [Abstract] Retirement Benefits [Abstract] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Computer and 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