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Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Awarded to [Domain] Awarded to [Domain] [Domain] for Awarded to [Axis] August Grant August Grant [Member] August Grant [Member] Gross Unrealized Losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Scenario, Unspecified [Domain] Scenario [Domain] Unrealized losses 12 months or greater Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Share-based Payment Arrangement [Abstract] Current liabilities: Liabilities, Current [Abstract] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Canceled (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Inventory 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Total comprehensive income attributable to Intuitive Surgical, Inc. 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Net income attributable to Intuitive Surgical, Inc. 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Balance at Beginning of Year Balance at End of Year SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Discount on fair market value on the purchase date Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date Fixed assets Deferred Tax Liabilities, Property, Plant and Equipment Revenue from Contract with Customer [Abstract] Computer and office equipment Computer Equipment [Member] Total Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received Minimum hours employed per week Minimum Hours Employed Per Week To Participate In Employee Stock Purchase Plan Minimum hours employed per week to participate in employee stock purchase plan. 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Plans Vattikuti Technologies Pvt. Ltd. Vattikuti Technologies Pvt. Ltd. [Member] Vattikuti Technologies Pvt. Ltd. [Member] Accounts receivable Increase (Decrease) in Accounts Receivable 2024 Lessee, Operating Lease, Liability, Payments, Due Year Four Income taxes—long-term Accrued Income Taxes, Noncurrent Right-of-use assets recognized related to new lease obligations Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Non-U.S. government securities Debt Security, Government, Non-US [Member] Transaction price allocated to remaining performance obligations Revenue, Remaining Performance Obligation, Amount Translation and other Goodwill, Translation and Purchase Accounting Adjustments Consolidating Reporting [Domain] Consolidating Reporting [Domain] Consolidating Reporting [Domain] Amortization of contract acquisition assets Capitalized Contract Cost, Amortization InTouch InTouch Technologies, Inc. [Member] InTouch Technologies, Inc. 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Details of the Other Long-Term Liabilities Balance Sheet Item Other Noncurrent Liabilities [Table Text Block] 2025 Lessee, Operating Lease, Liability, Payments, Due Year Five Inventory acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Net unrealized gains/(losses) on investments Unrealized Gain (Loss) on Investments Leases Lessor, Operating Leases [Text Block] Total Intuitive Surgical, Inc. Stockholders’ Equity Parent [Member] Additional Paid-In Capital Additional Paid-in Capital [Member] Revenue Revenue from Contract with Customer [Text Block] Operating Lease Revenue Operating Lease, Lease Income [Table Text Block] Net operating losses Deferred Tax Assets, Operating Loss Carryforwards Repurchase and retirement of common stock Stock Repurchased and Retired During Period, Value Share-Based Compensation Share-based Payment Arrangement [Policy Text Block] Acquisition of businesses, net of cash Payments to Acquire Businesses, Net of Cash Acquired Employer matching contributions Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Deferred tax remeasurement due to Swiss Tax Reform Deferred tax remeasurement due to Swiss Tax Reform Effective Income Tax Rate Reconciliation, Foreign Tax Reform, Amount Effective Income Tax Rate Reconciliation, Foreign Tax Reform, Amount Schedule Of Gross Unrecognized Income Tax Benefits Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Exercise Price Range 5 Range Five [Member] Range Five [Member] I.R.S. Employer Identification No. Entity Tax Identification Number Cash payments Payments to Acquire Businesses, Gross Supplemental Balance Sheet Information Assets And Liabilities, Lessee [Table Text Block] Assets And Liabilities, Lessee [Table Text Block] Discount on fair market value on the offering date Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Offering Date Income Statement Location Income Statement Location [Axis] Business Acquisition [Axis] Business Acquisition [Axis] Summary Of Contractual Maturities Of Cash Equivalents And Available-For-Sale Investments Investments Classified by Contractual Maturity Date [Table Text Block] Market-based implied volatility (percent) Share-Based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Market-based Implied Volatility, Percent Share-Based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Market-based Implied Volatility, Percent Current Fiscal Year End Date Current Fiscal Year End Date Total purchase consideration Business Combination, Consideration Transferred Initial Grant Options Initial Grant Options [Member] Initial Grant Options [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Cost of sales—services Cost Of Sales Service [Member] Cost Of Sales Service [Member] Tax benefit from tax holiday Income Tax Holiday, Aggregate Dollar Amount Employer match percentage Defined Contribution Plan, Employer Matching Contribution, Percent of Match Legal Contingencies Commitments and Contingencies, Policy [Policy Text Block] Research and development credit Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Decreases related to expiration of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations System sales arrangement, warranty period System Sales Arrangement, Warranty Period System Sales Arrangement, Warranty Period Unvested beginning balance (usd per share) Unvested ending balance (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Discrete tax expense arising from the conclusion of a tax matter Income Tax Benefit, Discrete Item, One Time Tax Benefits Income Tax Benefit, Discrete Item, One Time Tax Benefits Taxes paid related to net share settlement of equity awards Payment, Tax Withholding, Share-based Payment Arrangement Inventory Total inventory Inventory, Net Geographic Distribution [Axis] Geographic Distribution [Axis] Net Income Per Share Earnings Per Share [Text Block] Income Tax Contingency [Table] Income Tax Contingency [Table] Equity Award [Domain] Award Type [Domain] Percentage vesting upon six months of service Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Vesting Upon Six Months of Service Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Vesting Upon Six Months of Service 2025 Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Five Years Cash Cash [Member] Employee stock purchase plan, value of shares issued Stock Issued During Period, Value, Employee Stock Purchase Plan Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] Schölly Schölly Fiberoptic GmbH [Member] Schölly Fiberoptic GmbH Hedging Designation [Axis] Hedging Designation [Axis] Restricted Stock Units (RSUs) RESTRICTED STOCK UNITS Restricted Stock Units (RSUs) [Member] Goodwill and Intangible Assets Goodwill and Intangible Assets, Policy [Policy Text Block] 2010 Plan Amended And Restated Twenty Ten Stock Incentive Plan [Member] Amended And Restated Twenty Ten Stock Incentive Plan [Member] Capitalized software Capitalized Computer Software, Gross Exercise Price Range 3 Range Three [Member] Range Three [Member] Moderate Moderate Credit Rating [Member] Moderate Credit Rating Schedule Of Provision For Income Taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Total liabilities Liabilities Proceeds from maturities of investments Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale Additions SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Minimum exercise price of NSOs, percentage of fair value Minimum Exercise Price Of Nsos Percentage Of Fair Value Minimum exercise price of NSOs, percentage of fair value. Cash received from option exercises and employee stock purchase plans Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised Non-compete provision Noncompete Agreements [Member] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Pre-tax settlement charges Loss Contingency Accrual, Period Increase (Decrease) Amortized Cost Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract] Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer 2019 Sales-type Lease, Net Investment in Lease, Originated in Fiscal Year before Latest Fiscal Year Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table] Share-based Payment Arrangement, Option, Exercise Price Range [Table] Equity, Class of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Construction-in-process Construction in Progress, Gross AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Impairment of Long-lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Total Intuitive Surgical, Inc. stockholders’ equity Beginning balance Ending balance Stockholders' Equity Attributable to Parent Amortization of intangible assets Amortization expense related to intangible assets Amortization of Intangible Assets Other liabilities Increase (Decrease) in Other Operating Liabilities Supplemental Cash Flow Elements [Abstract] Supplemental Cash Flow Elements [Abstract] Local Phone Number Local Phone Number Deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Land Land Options Exercisable, Weighted Average Exercise Price Per Share (usd per share) Share-based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price Schedule of Available For Sale and Held to Maturity Securities [Domain] Schedule Of Available For Sale And Held To Maturity Securities [Domain] Schedule of Available For Sale and Held to Maturity Securities [Domain] Foreign Currency Translation Gains (Losses) Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Schedule of Capital Leased Assets [Table] Schedule of Capital Leased Assets [Table] Gross Carrying Amount Finite-Lived Intangible Assets, Gross Preferred stock, 2.5 shares authorized, $0.001 par value, issuable in series; no shares issued and outstanding as of December 31, 2020, and 2019 Preferred Stock, Value, Issued Includes acquisition-related benefits (charges) Business Combination, Acquisition Related Costs (Benefits) Business Combination, Acquisition Related Costs (Benefits) Employee stock options excluded from computation of diluted net income per share Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Depreciation expense Depreciation Options Exercisable, Number of Shares Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable Litigation Case [Axis] Litigation Case [Axis] Changes in Fair Value Equity Securities without Readily Determinable Fair Value, Unrealized Gain (Loss) Equity Securities without Readily Determinable Fair Value, Unrealized Gain (Loss) Additional paid-in capital Additional Paid in Capital, Common Stock Equity Component [Domain] Equity Component [Domain] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Expected term (years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Computer and office equipment Computer And Office Equipment Carrying amount as of balance sheet date of long-lived, depreciable asset used in production process to produce goods and services. Performance obligation period Revenue, Performance Obligation, Description of Timing Less: Reclassification adjustment for losses on employee benefit plans Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax Systems Systems [Member] Systems [Member] Maximum rate of employees' contribution to 401(k) plan Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Gross deferred tax assets Deferred Tax Assets, Gross U.S. government agencies US Treasury and Government [Member] Weighted average useful life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life 2026 and thereafter Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Thereafter Balance Sheet Location [Axis] Balance Sheet Location [Axis]