Proceeds from sale of business Proceeds from Divestiture of Businesses Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year Investment Investment, Policy [Policy Text Block] Short-term borrowings and current portion of long-term debt Schedule of Short-Term Debt [Table Text Block] Defined Benefit Plan, Expected Return (Loss) on Plan Assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Award Timing Predetermined Award Timing Predetermined [Flag] 4.80% senior notes due 2034 4.80% senior notes due 2034 4.80% senior notes due 2034 Indefinite-lived Intangible Assets [Axis] Indefinite-Lived Intangible Assets [Axis] Entity File Number Entity File Number Per Share Amount [Abstract] Per Share Amount [Abstract] Additional Paid-in Capital Additional Paid-in Capital [Member] Common stock issued under employee stock plans (in shares) Commons Stock Issued During Period Shares Employee Stock Plans Number of common shares issued during the period as a result of an employee stock purchase plan and/or stock option plan. Tabular List, Table Tabular List [Table Text Block] Defined Benefit Plan, Plan Assets, Target Allocation, Percentage Defined Benefit Plan, Plan Assets, Target Allocation, Percentage Provision for income tax related to items of comprehensive earnings Tax effect of adjustments, Accumulated Other Comprehensive Earnings Other Comprehensive Income (Loss), Tax New Accounting Pronouncements, Policy New Accounting Pronouncements, Policy [Policy Text Block] Finance Lease Liability [Abstract] Finance Lease, Liability [Abstract] 2025 acquisitions [Member] 2025 acquisitions [Member] 2025 acquisitions General Bond Index Funds [Member] General bond index funds [Member] Benefit plan assets invested in the fixed income securities category. Debt Securities [Member] Debt Securities [Member] Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Goodwill [Line Items] Goodwill [Line Items] Position [Axis] Position [Axis] Initial Damages Initial Damages [Member] Initial Damages Adjustment to Compensation: Adjustment to Compensation [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Document Information, Document [Axis] Document Information, Document [Axis] REVENUES Revenue from Contract with Customer [Text Block] Interest Interest Paid In Cash The amount of cash paid during the current period for interest owed on money borrowed Estimated useful life of capitalized software maximum (in years) Property plant and equipment useful life software maximum Property plant and equipment useful life software maximum Total current income taxes Current Income Tax Expense (Benefit) Adjustment to Compensation, Amount Adjustment to Compensation Amount Pension Plan [Member] Pension Plan [Member] Stock compensation Share-Based Payment Arrangement, Noncash Expense Stock Options [Member] Share-Based Payment Arrangement, Option [Member] 4.55% senior notes due 2032 4.55% senior notes due 2032 4.55% senior notes due 2032 Schedule of Property, Plant and Equipment [Table] Property, plant and equipment, net [Table] Property, Plant and Equipment [Table] Sales Commission Amortization Period Minimum Sales Commission Amortization Period Minimum Sales Commission Amortization Period Minimum Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Third party [Member] Third party [Member] Third party [Member] Federal statutory tax rate reconciliation [Abstract] Effective Income Tax Rate Reconciliation, Percent [Abstract] Dividends, Common Stock, Cash Dividends, Common Stock, Cash Asset Impairment Charges Asset Impairment Charges Total shareholders’ equity BALANCE BALANCE Equity, Attributable to Parent Measurement Frequency [Axis] Measurement Frequency [Axis] Insider Trading Policies and Procedures [Line Items] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Property, plant and equipment, net Property, Plant and Equipment [Table Text Block] Segment Reporting Information, Revenue for Reportable Segment [Abstract] Segment Reporting Information, Revenue for Reportable Segment [Abstract] CommunityHealthSystemsInc. CommunityHealthSystemsInc. [Member] CommunityHealthSystemsInc. Short term lease Short term lease [Member] Short term lease Line of Credit Facility, Interest Rate at Period End Line of Credit Facility, Interest Rate at Period End Variable Annuity [Member] Variable Annuity [Member] Allowance for Credit Loss Allowance for Credit Loss Allowance for Credit Loss LIABILITIES AND SHAREHOLDERS’ EQUITY Liabilities and Equity [Abstract] Cover [Abstract] Cover [Abstract] DISCONTINUED OPERATIONS Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Maximum [Member] Maximum [Member] Finite-Lived Intangible Asset, Useful Life Useful life of finite-lived intangible assets, minimum (years) Finite-Lived Intangible Asset, Useful Life Less: Net earnings attributable to the noncontrolling interest Less: Net earnings attributable to the noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase Finite-Lived Intangible Assets, Net Finite-Lived Intangible Assets, Net Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Dilutive effect of stock options (in shares) Incremental Common Shares Attributable To Stock Options Aggregate awards of stock options and nonvested options to be issued to an employee under a stock option arrangement. Such stock options shall be considered to be outstanding as of the grant date for purposes of computing diluted earnings per share even though their exercise may be contingent upon vesting. Those options are included in the diluted Earnings Per Share (EPS) computation even if the employee may not receive (or be able to sell) the stock until some future date. Retirement Benefits [Abstract] Retirement Benefits [Abstract] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Other Assets Other Assets [Member] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Entity Shell Company Entity Shell Company Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Proceeds from sale of assets Proceeds from Sale of Property, Plant, and Equipment Statement of Financial Position Location, Activity, Accrual [Axis] Statement of Financial Position Location, Activity, Accrual [Axis] Loss Contingencies by Nature of Contingency [Axis] Loss Contingency Nature [Axis] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Operating Segments Operating Segments [Member] Gross profit Disposal Group, Including Discontinued Operation, Gross Profit (Loss) Supplemental Cash Flow Information Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Line of Credit Facility [Table] Line of Credit Facility [Table] Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Axis] Options Outstanding and Exercisable at December 31, 2013, by Range of Exercise Prices [Axis] Exercise Price Range [Axis] Restructuring Reserve Restructuring Reserve Domestic Income (Loss) from Continuing Operations before Income Taxes, Domestic Short-term operating lease liabilities Less current portion Operating Lease, Liability, Current Finance Lease, Interest Expense Finance Lease, Interest Expense Patents, Licenses And Technology [Member] Patents, licenses and technology [Member] Patents, Licenses And Technology [Member] Patents are the exclusive legal right granted by the government to the owner of the patent to exploit an invention or a process for a period of time specified by law. Licenses are rights, generally of limited duration, under a license arrangement (for example, to sell or otherwise utilize specified products or processes in a specified territory). Technology-based intangible assets are innovations or scientific advances that have not been patented. Software Software and Software Development Costs [Member] Document Fiscal Period Focus Document Fiscal Period Focus Credit Facility Option to Increase Credit Facility Option to Increase Credit Facility Option to Increase Fair market value of senior notes Senior Notes Fair Value Estimated fair value of the debt instrument (senior notes) at the balance-sheet date Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Award Timing Method Award Timing Method [Text Block] Outstanding common stock repurchase authorization Common Stock Repurchase Authorization Outstanding The dollar amount of share (common shares) repurchase authorization approved by the Board of Directors which remains available to the Company. Basic earnings per share from continuing operations Income (Loss) from Continuing Operations, Per Basic Share Furniture and fixtures [Member] Furniture and Fixtures [Member] Furniture and Fixtures [Member] Award Type [Axis] Award Type [Axis] Minimum Pillar Two Effective Tax Rates Minimum Pillar Two Effective Tax Rates Minimum Pillar Two Effective Tax Rates Hedging Relationship [Domain] Hedging Relationship [Domain] Business Combination, Pro Forma Information [Table Text Block] Business Combination, Pro Forma Information [Table Text Block] Empire City Laboratories, Inc Empire City Laboratories, Inc [Member] Empire City Laboratories, Inc Trading Symbol Trading Symbol Defined Benefit Plan, Actual Asset Allocation Defined Benefit Plan, Actual Asset Allocation Defined Benefit Plan, Actual Asset Allocation Effective Income Tax Rate Reconciliation, Tax Credit, Amount Effective Income Tax Rate Reconciliation, Tax Credit, Amount Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Estimated useful life of capitalized software costs (in years) Property plant and equipment useful life software average Capitalized software costs are amortized over the estimated useful life of the underlying system. Entity Address, City or Town Entity Address, City or Town Short-term Debt, Type [Domain] Short-Term Debt, Type [Domain] 2030 Lessee, Operating Lease, Liability, to be Paid, Rolling Year Five Finance Lease, Weighted Average Discount Rate, Percent Finance Lease, Weighted Average Discount Rate, Percent Components of identifiable intangible assets Intangible Assets Disclosure [Text Block] Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) Deferred tax assets, net of valuation allowance Deferred Tax Assets, Net of Valuation Allowance Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Income Statement Location [Domain] Statement of Income Location, Balance [Domain] Severance and other personnel costs Severance Costs Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Loss Contingency, Damages Awarded, Value Loss Contingency, Damages Awarded, Value LEASES LeasesOfLesseeDisclosureTextBlock [Text Block] LeasesOfLesseeDisclosureTextBlock Enactment of the One Big Beautiful Bill Enactment of the One Big Beautiful Bill [Policy Text Block] Enactment of the One Big Beautiful Bill Entity Emerging Growth Company Entity Emerging Growth Company Long-Term Debt, Maturity, Year Three Long-Term Debt, Maturity, Year Three Restructuring Reserve, Current Restructuring Reserve, Current Finance Lease, Weighted Average Remaining Lease Term Finance Lease, Weighted Average Remaining Lease Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Payments on revolving credit facilities Repayments of Lines of Credit Repayments of Lines of Credit Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Clients Client [Member] Client [Member] Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months Defined Benefit Plan, Expected Future Benefit Payment, Year One Indefinite-Lived Intangible Assets (Excluding Goodwill) Indefinite-Lived Intangible Assets (Excluding Goodwill) Less imputed interest Finance Lease, Liability, Undiscounted Excess Amount Common stock, 82.2 and 83.4 shares outstanding at December 31, 2025, and 2024, respectively Common shares issued, beginning balance (in shares) Common shares issued, ending balance (in shares) Common Stock, Shares, Outstanding Options Outstanding and Exercisable at December 31, 2013, by Range of Exercise Prices [Table] Share-Based Payment Arrangement, Option, Exercise Price Range [Table] Accounts Receivable, Credit Loss Expense (Reversal) Accounts Receivable, Credit Loss Expense (Reversal) Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Sensitivity Projection - Expected Return on Plan Assets Sensitivity Projection - Expected Return on Plan Assets Sensitivity Projection - Expected Return on Plan Assets 4.70% senior notes due 2045 [Member] 4.70% senior notes due 2045 [Member] 4.70% senior notes due 2045 Current tax expense: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Proceeds from senior note offerings Proceeds from Issuance of Senior Long-Term Debt Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] 2023 acquisitions 2023 acquisitions [Member] 2023 acquisitions Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments in Statement of Financial Position at Fair Value Derivative, Fair Value, Net [Abstract] Post 2017 Post 2017 [Member] Post 2017 Prepaid Expense and Other Assets, Current Prepaid Expense and Other Assets, Current Diluted earnings per share from discontinued operations Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Provision for income taxes Total income tax provision Income Tax Expense (Benefit) Document Information [Line Items] Document Information [Line Items] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Fair Value Hierarchy and NAV [Axis] Defined Benefit Plans, Fair Value of Plan Assets by Category [Axis] Fair Value Hierarchy and NAV [Axis] Hedging Relationship [Axis] Hedging Relationship [Axis] Gross property, plant and equipment Property, Plant and Equipment, Gross Property, Plant and Equipment [Member] Property, Plant and Equipment [Member] Less: reserve for unbilled services Allowance for Credit Loss, Receivable, Other, Current Discontinued Operations and Disposal Groups [Abstract] Discontinued Operations and Disposal Groups [Abstract] Changes in common shares issued and held in treasury Changes In Common Shares Issued And Held In Treasury [Table Text Block] Schedule is used to show the changes in common shares issued and held in treasury by the entity. RESTRUCTURING AND OTHER CHARGES Restructuring and Related Activities Disclosure [Text Block] Operating lease right-of-use asset expense Operating Lease, Right-of-Use Asset, Periodic Reduction Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Goodwill, Acquired During Period Goodwill, Acquired During Period Goodwill, Acquired During Period Cash received by the Company Proceeds from Stock Options Exercised Dividends Payable, Amount Per Share Dividends Payable, Amount Per Share Concentration of Credit Risk Concentration Of Credit Risk [Policy Text Block] A description of the company's credit risk accounting policy with respect to financial instruments. An entity shall disclose its policy for including whether the entity's cash and cash equivalents are insured or expose the entity to credit risk. Acquisition of businesses, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Payments to Acquire Businesses, Net of Cash Acquired Income Tax Paid, Federal, after Refund Received Income Tax Paid, Federal, after Refund Received Buildings and building improvements [Member] Building and Building Improvements [Member] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Accrued expenses and other Total Accrued expenses and other Accrued Liabilities, Current Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Deferred tax liabilities: Deferred Tax Liabilities, Gross [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Net Benefit Plan Adjustments Net Benefit Plan Adjustments [Member] Net Benefit Plan Adjustments Fortrea Credit Facilities [Domain] Fortrea Credit Facilities [Domain] Fortrea Credit Facilities [Domain] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Sensitivity Projection - Retirement Plan Expense Sensitivity Projection - Retirement Plan Expense Sensitivity Projection - Retirement Plan Expense Effective Income Tax Rate Reconciliation [Table] Effective Income Tax Rate Reconciliation [Table] Preferred stock, par value per share (in dollars per share) Preferred Stock, Par or Stated Value Per Share Estimated useful life, minimum (years) Property, Plant and Equipment, Useful Life Subsequent Event Subsequent Event [Member] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Depreciation Depreciation Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Property, plant and equipment, net Property, Plant and Equipment, Net, by Type [Abstract] 2029 Finance Lease, Liability, to be Paid, Year Four Swap Swap [Member] OTHER LIABILITIES Other Liabilities Disclosure [Text Block] Cash paid during period for: Cash Paid During Period For [Abstract] Equity Components [Axis] Equity Components [Axis] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Contract with Customer, Basis of Pricing [Axis] Contract with Customer, Basis of Pricing [Axis] Number of Reportable Segments Number of Reportable Segments Restructuring and other charges Net restructuring and other charges Amount charged against earnings in the period for incurred and estimated costs, excluding asset retirement obligations, associated with exit from or disposal of business activities or restructurings pursuant to a program planned and controlled by management, and materially changes either the scope or manner of conduct of a business undertaken. Also, may include reversals and other adjustments to accrued liabilities and special charges, if any, for asset abandonment, uncollectible balances, etc. Entity Address, State or Province Entity Address, State or Province Finance Lease, Principal Payments Finance Lease, Principal Payments Defined Benefit Plan, Expected Future Benefit Payment, Year Four Defined Benefit Plan, Expected Future Benefit Payment, Year Four Euro Member Countries, Euro Euro Member Countries, Euro Allowance For Credit Loss Foreign Currency Translation Impact Allowance For Credit Loss Foreign Currency Translation Impact Allowance For Credit Loss Foreign Currency Translation Impact Total current liabilities Liabilities, Current Individual: Individual [Axis] Income Tax Jurisdiction [Domain] Income Tax Jurisdiction [Domain] Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Document Annual Report Document Annual Report The employee stock purchase plan permits employees to purchase shares of common stock at a certain percentage of the market price (in hundredths) Employee Stock Purchase Plan Percent Of Market Price The percentage of the market price of common stock participating employees are able to purchase company stock. Income Tax Examination, Penalties Expense Income Tax Examination, Penalties Expense Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Subsidiary, Ownership Percentage, Noncontrolling Owner Subsidiary, Ownership Percentage, Noncontrolling Owner Effective Income Tax Reconciliation, Remeasurement of deferred taxes Effective Income Tax Reconciliation, Deferred Tax Adjustments, Percent Effective Income Tax Reconciliation, Deferred Tax Adjustments, Percent Entity Interactive Data Current Entity Interactive Data Current 4.35% senior notes due 2031 [Member] 4.35% senior notes due 2031 [Member] 4.35% senior notes due 2031 Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Weighted-Average Interest Crediting Rate Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Weighted-Average Interest Crediting Rate Defined Benefit Plan, Funded (Unfunded) Status of Plan Funded status — (deficit) surplus Defined Benefit Plan, Funded (Unfunded) Status of Plan Foreign currency translation adjustments Current year adjustments, Foreign Currency Translation Adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Loss Contingency, Damages Type [Domain] Loss Contingency, Damages Type [Domain] Loss Contingency, Damages Type [Domain] Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount Disclosure of Share Based Compensation Arrangements by Share Based Payment Awards Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Tax loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Capitalized Software Costs Internal Use Software [Policy Text Block] Describes an entity's accounting policy for costs incurred when both (1) the software is acquired, internally developed, or modified solely to meet the entity's internal needs, and (2) during the software's development or modification, no substantive plan exists or is being developed to market the software externally. Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Still Held Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Still Held Property, Plant and Equipment by Type [Axis] Property, plant and equipment, net [Axis] Long-Lived Tangible Asset [Axis] Ownership [Domain] Ownership [Domain] Early Development Early Development [Member] Early Development 2027 Finance Lease, Liability, to be Paid, Year Two Credit Loss Expense (Reversal) Credit Loss Expense (Reversal) Credit Loss Expense (Reversal) Short term debt issue costs Short term debt issue costs [Member] Short term debt issue costs Goodwill and Indefinite-lived Intangible Assets Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Defined Benefit Plan, Expected Future Benefit Payment, Year Two Defined Benefit Plan, Expected Future Benefit Payment, Year Two Other assets, net Other Assets, Noncurrent Customer [Domain] Customer [Domain] Entity Central Index Key Entity Central Index Key PEO Name PEO Name Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax, Beginning Balance Foreign Currency Translation Adjustments, balance, ending balance Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Schedule of Maturities of Long-term Debt Schedule of Maturities of Long-Term Debt [Table Text Block] Revenues Revenues Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Currency Swap [Member] Currency Swap [Member] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Long term debt, future minimum payments, interest included in payments Long term debt, minimum future payments, net of Interest Rate Swaps Total long-term debt, minimum future payments, net of Interest Rate Swaps Schedule of Defined Benefit Plans Disclosures Defined Benefit Plans, Fair Value of Plan Assets by Category [Table] Defined Benefit Plan [Table] Reimbursable Out-of-Pocket Expenses Reimbursable Out of Pocket Expenses Policy [Policy Text Block] Reimbursable Out of Pocket Expenses Policy [Policy Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Deferred Revenue, Revenue Recognized Deferred Revenue, Revenue Recognized Increase in prepaid expenses and other Increase (Decrease) in Prepaid Expense and Other Assets Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Class of Stock [Domain] Class of Stock [Domain] Defined Benefit Plan, Benefit Obligation, Benefits Paid Defined Benefit Plan, Benefit Obligation, Benefits Paid Defined Benefit Plan, Benefit Obligation, Benefits Paid Valuation Allowance by Deferred Tax Asset [Axis] Valuation Allowance by Deferred Tax Asset [Axis] Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Providence Medical Foundation Providence Medical Foundation [Member] Providence Medical Foundation Subsequent Event Type [Axis] Subsequent Event Type [Axis] Long-term debt Long-term debt, less current portion Long-term debt, less current portion Long-Term Debt, Excluding Current Maturities Unbilled Services, Allowance for Credit Loss, Write Off Unbilled Services, Allowance for Credit Loss, Write Off Unbilled Services, Allowance for Credit Loss, Write Off Unbilled Services, Allowance for Credit Loss, Write Off Estimated amortization expense, 2028 Finite-Lived Intangible Asset, Expected Amortization, Year Three Balance Sheet Location [Axis] Statement of Financial Position Location, Balance [Axis] Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Gross Carrying Amount Finite-Lived Intangible Assets, Gross Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Entity Address, Address Line One Entity Address, Address Line One Foreign tax loss carryovers Foreign Tax Loss Carryovers The foreign loss carryovers, before tax effects, available to reduce future taxable income under enacted tax laws. O2026Q1DividendsMember O2026Q1Dividends [Member] O2026Q1Dividends Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] AOCI Attributable to Parent [Member] Decrease in accrued expenses and other Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Operating income Disposal Group, Including Discontinued Operation, Operating Income (Loss) Accounts receivable securitizaiton Accounts receivable securitizaiton [Member] Accounts receivable securitizaiton Ownership [Axis] Ownership [Axis] Medicare and Medicaid [Member] Medicare and Medicaid [Member] Medicare and Medicaid [Member] DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES Derivative Instruments and Hedging Activities Disclosure [Text Block] Accumulated Other Comprehensive Earnings [Abstract] Accumulated Other Comprehensive Earnings [Abstract] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Other Liabilities [Member] Other Liabilities [Member] Other Liabilities [Member] Fair Value as of Grant Date Award Grant Date Fair Value Goodwill Impairment, Cumulative Goodwill Impairment, Cumulative Goodwill Impairment, Cumulative Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Labor Labor and Related Expense Fair Value, Inputs, Level 1, 2 and 3 Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Schedule of Long-term Debt Instruments Schedule of Long-Term Debt Instruments [Table Text Block] Fortrea Holdings Inc. spin-off Stockholders' Equity Note, Spinoff Transaction Number of options granted Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Purchase of equity affiliates or other investments Payments to Acquire Investments Unrecognized compensation cost related to nonvested restricted stock and performance share-based compensation arrangements Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Deferred Income Taxes and Other Tax Liabilities, Noncurrent Deferred Income Taxes and Other Tax Liabilities, Noncurrent Foreign Currency Contract, Asset, Fair Value Disclosure Foreign Currency Contract, Asset, Fair Value Disclosure Net amortization and deferral Net amortization and deferral Defined Benefit Plan Amortization And Deferral An amount calculated as a basis for determining the effects of amortization expenses and other deferrals. Shares of common stock authorized for issuance under the employee stock purchase plan Employee Stock Purchase Plan Number Of Authorized Shares The maximum number of shares originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for purchase under the employee stock purchase plan. Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Weighted-average remaining contractual term of options outstanding (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term GERMANY GERMANY Accrued expenses and other Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] Investments Investments Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Defined Benefit Plan, Expected Future Benefit Payment, Year Three Defined Benefit Plan, Expected Future Benefit Payment, Year Three Payments to Acquire Businesses, Gross Payments to Acquire Businesses, Gross Enzo BioChem Enzo BioChem [Member] Enzo BioChem Non-PEO NEO Non-PEO NEO [Member] Aggregate intrinsic value of options outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Letters of Credit Outstanding, Amount Letters of Credit Outstanding, Amount Effective Income Tax Rate Reconciliation, Nondeductible Expense, Worthless Stock Loss, Percent Effective Income Tax Rate Reconciliation, Nondeductible Expense, Worthless Stock Loss, Percent Effective Income Tax Rate Reconciliation, Nondeductible Expense, Worthless Stock Loss, Percent Business Combination, Recognized Liability Assumed, Deferred Revenue, Current Business Combination, Recognized Liability Assumed, Deferred Revenue, Current Position [Domain] Position [Domain] Lease, Cost Total Finance Lease Cost Total Finance Lease Cost Right of use asset Deferred Tax Liabilities, Leasing Arrangements 2029 Lessee, Operating Lease, Liability, to be Paid, Rolling Year Four Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Other Other Intangible Assets [Member] Land [Member] Land [Member] Foreign Currency Gain (Loss) Foreign Currency Gain (Loss) [Member] Award Type [Domain] Award Type [Domain] Short term debt issuance costs Short term debt issuance costs Short term debt issuance costs 2026 Lessee, Operating Lease, Liability, to be Paid, Year One Equity Awards Adjustments Equity Awards Adjustments [Member] Leasehold improvements [Member] Leasehold Improvements [Member] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Business Combination, Recognized Liability Assumed, Lease Obligation Business Combination, Recognized Liability Assumed, Lease Obligation Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Defined Benefit Plans Disclosures [Line Items] Defined Benefit Plan Disclosure [Line Items] CANADA CANADA Compensation Amount Outstanding Recovery Compensation Amount Deferred tax expense (benefit): Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Restricted Stock and Performance Shares [Member] Restricted Stock And Performance Shares [Member] Restricted stock and performance shares in the entity's stock incentive plan. SWITZERLAND SWITZERLAND Three month SOFR Three month SOFR Three month SOFR Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Expected dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Reporting Unit [Domain] Reporting Unit [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Accounts Receivable, Allowance for Credit Loss Accounts Receivable, Allowance for Credit Loss [Table Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Effective Income Tax Rate Reconciliation, Foreign Income Tax 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Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Cash and Cash Equivalent Deferred income taxes Increase (Decrease) in Deferred Income Taxes Common Stock Common Stock [Member] Number of options vested Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Net (decrease) increase in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Notes Payable, Current Notes Payable, Current Loss Contingency, Damages Type [Axis] Loss Contingency, Damages Type [Axis] Loss Contingency, Damages Type Common Stock, Dividends, Per Share, Cash Paid Common Stock, Dividends, Per Share, Cash Paid SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Statistical Measurement [Domain] Statistical Measurement [Domain] Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment Business Combination [Abstract] Business Combination [Abstract] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent Gross Carrying Amount Intangible Assets, Gross (Excluding Goodwill) Asset Class [Axis] Asset Class [Axis] Debt Issuance Costs Debt, Policy [Policy Text Block] Equity method loss, net Income (Loss) from Equity Method Investments Leases [Abstract] Leases [Abstract] Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Unbilled services, net Unbilled Contracts Receivable Intangible Asset, Acquired, Finite-Lived [Line Items] Intangible Asset, Acquired, Finite-Lived [Line Items] Operating Activities [Axis] Operating Activities [Axis] (Decrease) increase in accounts payable Increase (Decrease) in Accounts Payable Contract with Customer, Asset, after Allowance for Credit Loss, Current Contract with Customer, Asset, after Allowance for Credit Loss, Current Discontinued operations Disposal Groups, Including Discontinued Operations [Table Text Block] Type of Restructuring [Domain] Type of Restructuring [Domain] Retirement Plan Name [Axis] Retirement Plan Name [Axis] Net share settlement tax payments from issuance of stock to employees Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Basic earnings per share Earnings Per Share, Basic Net cash (used for) provided by continuing financing activities Cash Provided by (Used in) Financing Activity, Continuing Operation Supplies Supplies Expense Effective Income Tax Rate Reconciliation, Tax Contingency, Percent Effective Income Tax Rate Reconciliation, Tax Contingency, Percent   Total gross deferred tax assets Deferred Tax Assets, Gross Discount rate for the Company Plan Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Share-based Payment Arrangement, Exercise of Option, Tax Benefit Share-Based Payment Arrangement, Exercise of Option, Tax Benefit Other comprehensive earnings (loss), net of tax Other Comprehensive Income (Loss), Net of Tax Other Comprehensive Income (Loss), Net of Tax Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table Text Block] Dividends Payable, Date to be Paid Dividends Payable, Date to be Paid Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Measurement Input Type [Domain] Measurement Input Type [Domain] Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Nature of Uncertainty [Domain] Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Nature of Uncertainty [Domain] 2028 Finance Lease, Liability, to be Paid, Year Three Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Real Estate Funds [Member] Real Estate Funds [Member] Cash and Cash Equivalents [Member] Cash and Cash Equivalents [Member] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Accounts and Financing Receivables [Table] Expense related to the Company's employee stock purchase plan Employee Stock Purchase Plan Expense The expense amount recognized during the period related to the Company's employee stock purchase plan. Proceeds from sale or distribution of equity affiliates or other investments Proceeds from Sale of Other Investments Payments to Acquire Equity Method Investments Payments to Acquire Equity Method Investments Derivative Instruments, Gain (Loss) Derivative Instruments, Gain (Loss) [Line Items] 3.60% senior notes due 2027 [Member] 3.60% senior notes due 2027 [Member] 3.60% senior notes due 2027 Defined Contribution Plan Total Expense Defined Contribution Plan Total Expense Defined Contribution Plan Total Expense Tax Period [Domain] Tax Period [Domain] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Current assets: Assets, Current [Abstract] Total liabilities and shareholders’ equity Liabilities and Equity Foreign Currencies Foreign Currency Transactions and Translations Policy [Policy Text Block] 1.55% senior notes due 2026 1.55% senior notes due 2026 1.55% senior notes due 2026 Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Table] Licensing Agreements [Member] Licensing Agreements [Member] Diagnostics [Member] Diagnostics [Member] Diagnostics [Member] Cash and cash equivalents at beginning of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Long term debt issuance costs Long term debt issuance costs Long term debt issuance costs Derivative, Interest Rate Swap Derivative, Interest Rate Swap Derivative, Interest Rate Swap Other Deferred Tax Assets, Other Decrease in reserve as a result of settlements Unrecognized Tax Benefit Decreases Resulting From Prior Period Tax Positions The net change in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns. Providence Health Providence Health [Member] Providence Health Accounting Policies [Abstract] Accounting Policies [Abstract] Federal and State Attribute Carryforwards Federal and State Attribute Carryforwards Federal and State Attribute Carryforwards Lessee, Operating Lease, Liability, Maturity Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] 2024 acquisitions 2024 acquisitions [Member] 2024 acquisitions Earnings from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Treasury Stock Acquired, Average Cost Per Share Long-term debt, minimum future payments, net of interest rate swaps and current portion Long-term debt, minimum future payments, net of interest rate swaps and current portion Pay vs Performance Disclosure [Line Items] Operating Lease, Liability Operating Lease, Liability Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Summary of Valuation Allowance [Table Text Block] Summary of Valuation Allowance [Table Text Block] BUSINESS ACQUISITIONS AND DISPOSITIONS Business Combination [Text Block] Finance Lease, Right-of-Use Asset, Amortization Finance Lease, Right-of-Use Asset, Amortization Restricted stock, vesting increment Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights Stock Compensation Plans Share Based Compensation Option And Incentive Plans [Policy Text Block] Describes an entity's accounting policy for stock option and stock incentive plans. This disclosure may include (1) the types of stock option or incentive plans sponsored by the entity (2) the groups that participate in (or are covered by) each plan (3) significant plan provisions and (4) how stock compensation is measured, and the methodologies and significant assumptions used to determine that measurement. Other liabilities Total Other liabilities Other Liabilities, Noncurrent Number of years restructuring liabilities expected to be paid out over Number of years restructuring liabilities expected to be paid out over Number of years restructuring liabilities expected to be paid out over Increase (decrease) in unearned revenue Increase (Decrease) in Deferred Revenue Tax effect of adjustments, Foreign Currency Translation Adjustments OCI, Foreign Currency Transaction and Translation Gain (Loss), Arising During Period, Tax Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Goodwill, Impairment Loss Goodwill, Impairment Loss Goodwill, Impairment Loss Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Short-term borrowings and current portion of long-term debt Debt, Current Long-Term Debt, Current Maturities Company Selected Measure Amount Company Selected Measure Amount Employer contributions Defined Benefit Plan, Plan Assets, Contributions by Employer Interest Rate Swap Adjustments Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract] Comprehensive earnings attributable to Labcorp Holdings Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Measurement Input Type [Axis] Measurement Input Type [Axis] Name Measure Name Schedule of Income before Income Tax, Domestic and Foreign Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Fortrea Credit Facilities [Axis] Fortrea Credit Facilities [Axis] Fortrea Credit Facilities Net earnings attributable to Labcorp Holdings Inc. Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent 2027 Lessee, Operating Lease, Liability, to be Paid, Rolling Year Two Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss) Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss) Total assets Assets Estimated amortization expense, 2026 Finite-Lived Intangible Asset, Expected Amortization, Year One Weighted-average grant date fair value, vested Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Net Benefit Plan Adjustments, balance Net Benefit Plan Adjustments, balance Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax Geographical [Domain] Geographical [Domain] Income Taxes Income Tax, Policy [Policy Text Block] Components of deferred tax assets and liabilities [Abstract] Components of Deferred Tax Assets and Liabilities [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax Facility-related costs Business Exit Costs Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life Notes Payable, Noncurrent Notes Payable, Noncurrent Estimated amortization expense, 2029 Finite-Lived Intangible Asset, Expected Amortization, Year Four Dividends Payable, Date Declared Dividends Payable, Date Declared 2026 Finance Lease, Liability, to be Paid, Year One Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Business Combination, Recognized Asset Acquired, Asset Business Combination, Recognized Asset Acquired, Asset Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Document Financial Statement Error Correction [Flag] Document Financial Statement Error Correction [Flag] Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Proceeds from accounts receivable securitization Proceeds from Accounts Receivable Securitization Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Business Combination [Domain] Business Combination [Domain] Provision for Income Tax Expense (Benefit) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Plan Name [Axis] Plan Name [Axis] Property, Plant and Equipment, Net Property, Plant and Equipment, Policy [Policy Text Block] Document Information [Table] Document Information [Table] PEO PEO [Member] Lease Contractual Term [Domain] Lease Contractual Term [Domain] Severance and Other Personnel Costs Employee Severance [Member] 3.60% Senior notes due 2025 short term 3.60% Senior notes due 2025 short term 3.60% Senior notes due 2025 short term 1.55% Senior Notes Due 2026 [Member] 1.55% Senior Notes Due 2026 [Member] 1.55% Senior Notes Due 2026 Supplemental Cash Flow Disclosure [Line Items] Supplemental Cash Flow Disclosure [Line Items] Supplemental Cash Flow Disclosure [Line Items] Intangible assets Deferred Tax Liabilities, Intangible Assets Worker’s compensation and auto Workers' Compensation Liability, Noncurrent International - developed [Member] International Developed [Member] Benefit plan assets invested in the international capitalization equity securities- developed category. Change in assets and liabilities (net of effects of acquisitions and divestitures): Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Interest Rate Fair Value Hedge Asset at Fair Value Interest Rate Fair Value Hedge Asset at Fair Value Property, plant, and equipment Deferred Tax Liabilities, Property, Plant and Equipment Expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Retained Earnings Retained Earnings [Member] Income Tax Jurisdiction [Axis] Income Tax Jurisdiction [Axis] Line of Credit Facility, Interest Rate Description Line of Credit Facility, Interest Rate Description Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Income Statement [Abstract] Facility-related Costs Facility Closing [Member] Accrued taxes payable Taxes Payable, Current Professional Liability Professional Liability [Policy Text Block] Describes an entity's accounting policy for self-insurance of professional liability claims, which may include policies for calculating a liability amount. Rollforward of common shares issued [Abstract] Common Shares Issued Rollforward [Abstract] Intangible assets, net Net Carrying Amount Intangible Assets, Net (Excluding Goodwill) Enhanced Damages Enhanced Damages [Member] Enhanced Damages Product and Service [Domain] Product and Service [Domain] Weighted-average exercise price per exercisable option Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price Unbilled Services, Credit Loss Expense (Reversal) Unbilled Services, Credit Loss Expense (Reversal) Unbilled Services, Credit Loss Expense (Reversal) Diluted earnings per share from continuing operations Income (Loss) from Continuing Operations, Per Diluted Share Dividends Payable, Date of Record Dividends Payable, Date of Record Net earnings Net earnings Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Business Combination [Table] Acquisitions [Table] Business Combination [Table] 2034 Swap Agreements 2034 Swap Agreements [Member] 2034 Swap Agreements Derivative, Notional Amount Derivative, Notional Amount Business Combination, Recognized Asset Acquired and Liability Assumed Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block] City Area Code City Area Code Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] United States of America, Dollars United States of America, Dollars Pension Plan [Member] Pension Settlement [Member] Pension Settlement Net cash used for discontinued investing activities Cash Provided by (Used in) Investing Activity, Discontinued Operation Noncontrolling interest Noncontrolling Interest Mezzanine Equity Represents contractual value of a noncontrolling interest put (includes underlying noncontrolling interest). In February 2010, the Company completed a transaction to sell the partnership units acquired from the previous noncontrolling interest holder to a new Canadian partner. As a result of this transaction, the Company recorded a component of noncontrolling interest in liabilities and a component in mezzanine equity. This item represents the mezzanine equity component. Proceeds from revolving credit facilities Proceeds from Long-Term Lines of Credit Contract with Customer, Contract Asset, Contract Liability, and Receivable Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Net deferred tax liabilities Deferred Tax Liabilities, Net CASH FLOWS FROM INVESTING ACTIVITIES: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Defined Contribution Plan, Employer Matching Contribution, Percent of Match Defined Contribution Plan, Employer Matching Contribution, Percent of Match Contract with Customer, Duration [Axis] Contract with Customer, Duration [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Earnings from continuing operations before income taxes Total Earnings from continuing operations before income taxes Income (Loss) from Continuing Operations Before Income Taxes and Noncontrolling Interest Income (Loss) from Continuing Operations Before Income Taxes and Noncontrolling Interest Effective Income Tax Rate Reconciliation [Line Items] Effective Income Tax Rate Reconciliation [Line Items] Goodwill, net Goodwill Balance as of January 1 Goodwill, net Goodwill Lease, Cost Lease, Cost [Table Text Block] Lease Contractual Term [Axis] Lease Contractual Term [Axis] Deferred Federal Income Tax Expense (Benefit) Deferred Federal Income Tax Expense (Benefit) Non-US Non-US [Member] Revolving Credit Facility, amount outstanding Revolving Credit Facility, amount outstanding Revolving Credit Facility, amount outstanding Defined-benefit plan obligation Liability, Defined Benefit Pension Plan, Noncurrent Reconciliation of unrecognized tax benefits [Roll Forward] Unrecognized Tax Benefits [Roll Forward] Auditor Name Auditor Name Net cash provided by discontinued financing activities Cash Provided by (Used in) Financing Activity, Discontinued Operation Business Combination, Recognized Asset Acquired, Inventory, Current Business Combination, Recognized Asset Acquired, Inventory, Current Supplemental Cash Flow Information [Abstract] Supplemental Cash Flow Information [Abstract] Business Combination, Recognized Asset Acquired, Receivable, Current Business Combination, Recognized Asset Acquired, Receivable, Current Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Other Performance Measure, Amount Other Performance Measure, Amount Deferred Tax Asset [Domain] Deferred Tax Asset [Domain] Dividends declared Dividends Derivative Instrument [Axis] Derivative Instruments, Gain (Loss) by Derivative Instrument Risk [Axis] Derivative Instruments, Gain (Loss) by Derivative Instrument Risk [Axis] Derivative Instrument [Axis] Defined Benefit Plan, Benefit Obligation, Benefits Paid Defined Benefit Plan, Plan Assets, Benefits Paid Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Other Payments to Acquire Businesses Other Payments to Acquire Businesses Schedule of Accumulated and Projected Benefit Obligations Schedule of Accumulated and Projected Benefit Obligations [Table Text Block] Additional paid-in capital Additional Paid in Capital, Common Stock Defined Benefit Plan, Plan Assets, Payment for Settlement Defined Benefit Plan, Plan Assets, Payment for Settlement Defined Benefit Plan, Plan Assets, Payment for Settlement Net cash used for investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Joint venture partnerships and equity method investments Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Gain (Loss) on Disposition of Business Gain (Loss) on Disposition of Business Document Fiscal Year Focus Document Fiscal Year Focus Basis of Financial Statement Presentation Basis of Accounting, Policy [Policy Text Block] Line of Credit Facility [Axis] Lender Name [Axis] Operating Lease, Right-of-Use Asset Operating Lease, Right-of-Use Asset Number Of Foreign Currency Derivatives Held us-gaap_NumberOfForeignCurrencyDerivativesHeld Q2 us-gaap_NumberOfForeignCurrencyDerivativesHeld Q2 Deferred Compensation Plan Assets Deferred Compensation Plan Assets Effective Income Tax Rate Reconciliation, Percent, Total Effective tax rate Effective Income Tax Rate Reconciliation, Percent Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Operating Lease, Cost Operating Lease, Cost Royalty Damages Royalty Damages [Member] Royalty Damages Plan Name [Domain] Plan Name [Domain] Unrecognized compensation cost weighted average expected future recognition period (in years) Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Less: valuation allowance Deferred Tax Assets, Valuation Allowance North America North America [Member] Other Comprehensive Income Location [Domain] Other Comprehensive Income Location [Domain] Derivative Financial Instruments Derivatives, Policy [Policy Text Block] BUSINESS SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Schedule of Goodwill [Table] Goodwill [Table] Unrecorded Unconditional Purchase Obligation, Including Lease Not yet Commenced, to be Paid, Year Three Unrecorded Unconditional Purchase Obligation, to be Paid, Year Three 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] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Defined Benefit Plan, Plan Assets, Amount Defined Benefit Plan, Plan Assets, Amount Westpac Labs, Inc. Westpac Labs, Inc. [Member] Westpac Labs, Inc. Federal Current Federal Tax Expense (Benefit) Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Retirement Plan Type [Axis] Retirement Plan Sponsor Location [Axis] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Schedule of Net Benefit Costs Schedule of Net Benefit Costs [Table Text Block] Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Credit Facility, Maximum Swing Line Borrowings Credit Facility, Maximum Swing Line Borrowings Credit Facility, Maximum Swing Line Borrowings Business Combination, Contingent Consideration, Liability Business Combination, Contingent Consideration, Liability Cost of revenues Disposal Group, Including Discontinued Operation, Costs of Goods Sold Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Leases Lessee, Leases [Policy Text Block] Amortization of intangibles and other assets Amortization of intangible assets Amortization of intangibles and other assets Amortization of Intangible Assets Selling, general, and administrative expenses Selling, General and Administrative Expense Goodwill, Acquired During Period, net of measurement period adjustments Goodwill, Acquired During Period, net of measurement period adjustments Goodwill, Acquired During Period, net of measurement period adjustments 2.95% senior notes due 2029 2.95% senior notes due 2029 2.95% senior notes due 2029 Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Depreciation and amortization Depreciation, Depletion and Amortization Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement Rollforward of common shares held in treasury [Abstract] Common Shares Held In Treasury Rollforward [Abstract] Revolving credit facility [Member] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Finance Lease, Liability Finance Lease, Liability Arrangement Duration Trading Arrangement Duration Other Other Liabilities Noncurrent, Other Other Liabilities Noncurrent, Other Segments [Axis] Segments [Axis] Deferred Tax Assets, Derivative Instruments Deferred Tax Assets, Derivative Instruments Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Local Phone Number Local Phone Number Swap, Type [Axis] Swap, Type [Axis] Swap, Type Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Europe [Member] Europe [Member] Other, net Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Other Item Long-Term Debt, Maturity, after Year Five Long-Term Debt, Maturity, after Year Five STOCK COMPENSATION PLANS Share-Based Payment Arrangement [Text Block] Common shares repurchased (in shares) Stock Repurchased and Retired During Period, Shares Stock Repurchased and Retired During Period, Shares Issuance of common stock under employee stock plans Issuance of common stock under employee stock plans Aggregate change in value for stock issued during the period as a result of employee stock purchase plan, combined the value of stock issued during the period as a result of the exercise of stock options. Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent ASSETS Assets [Abstract] Credit Facility [Axis] Credit Facility [Axis] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Debt Instrument [Axis] Debt Instrument [Axis] Other countries [Member] Other countries [Member] Other countries [Member] Net proceeds from issuance of stock to employees Net proceeds from issuance of stock to employees The cash inflow associated with the amount received from holders exercising their stock options and employees related to shares purchased under the employee stock purchase plan. Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] PENSION AND POSTRETIREMENT PLANS Retirement Benefits [Text Block] Business Combination [Line Items] Business Combination [Line Items] Credit Facility [Domain] Credit Facility [Domain] Equity, Attributable to Parent [Abstract] Equity, Attributable to Parent [Abstract] Tufts Medicine Tufts Medicine [Member] Tufts Medicine Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment and Tax Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment and Tax Debt Instrument, Interest Rate, Stated Percentage Debt Instrument, Interest Rate, Stated Percentage Operating lease liabilities Operating Lease, Liability, Noncurrent Entity Voluntary Filers Entity Voluntary Filers Accelerated Share Repurchases, Settlement (Payment) or Receipt Accelerated Share Repurchases, Settlement (Payment) or Receipt 2028 Lessee, Operating Lease, Liability, to be Paid, Rolling Year Three Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Entity Registrant Name Entity Registrant Name Retirement Plan Name [Domain] Retirement Plan Name [Domain] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Defined benefit plan costs Defined benefit plan costs Defined-benefit plan costs Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Deferred compensation plan obligation Deferred Compensation Liability, Classified, Noncurrent 3.60% senior noted due 2025 [Member] 3.60% senior noted due 2025 [Member] 3.60% senior noted due 2025 Other acquirees [Member] Other acquirees [Member] Other acquirees [Member] Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss) Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss) DeferredTaxAssetAccelerationOverNextTwoYears DeferredTaxAssetAccelerationOverNextTwoYears DeferredTaxAssetAccelerationOverNextTwoYears Number of options exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number Federal SEC Schedule, 12-09, Valuation Allowances and Reserves, Increase (Decrease) Adjustment Energy [Axis] Energy [Axis] Machinery and equipment [Member] Machinery and Equipment [Member] Defined Benefit Plan, Interest Cost Defined Benefit Plan, Interest Cost Weighted-average grant date fair value, granted Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax Net cash provided by continuing operating activities Cash Provided by (Used in) Operating Activity, Continuing Operation Restatement Determination Date: Restatement Determination Date [Axis] Foreign Deferred Foreign Income Tax Expense (Benefit) Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Restructuring and Related Costs Restructuring and Related Costs [Table Text Block] Reporting Unit [Axis] Reporting Unit [Axis] Net cash used for continuing investing activities Cash Provided by (Used in) Investing Activity, Continuing Operation Income tax provision [Abstract] Income Tax Expense (Benefit), Continuing Operations [Abstract] Other, net Proceeds from (Payment for) Other Financing Activity Patients Self-Pay [Member] Population of Financial Assets and Liabilities Subject to Fair Value Measurements Fair Value, Liabilities Measured on Recurring Basis [Table Text Block] All Currencies [Domain] All Currencies [Domain] Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Name Trading Arrangement, Individual Name Schedule of Changes in Fair Value of Plan Assets Schedule of Changes in Fair Value of Plan Assets [Table Text Block] Contract with Customer, Basis of Pricing [Domain] Contract with Customer, Basis of Pricing [Domain] Schedule of Short-term Debt [Table] Short-Term Debt [Table] Swap, Type [Domain] Swap, Type [Domain] Swap, Type [Domain] Percent of gross accounts receivable due from patients Percent of gross accounts receivable due from patients Percent of gross accounts receivable due from patients Tax effect of adjustments, Net Benefit Plan Adjustments Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Contingent consideration adjustment Contingent consideration adjustment Contingent consideration adjustment Valuation Allowance [Table] Deferred Tax Asset, Valuation Allowance [Table] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Provision for income taxes Discontinued Operation, Tax Effect of Discontinued Operation Equity Funds Equity Funds [Member] Name Awards Close in Time to MNPI Disclosures, Individual Name Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, 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 Payments for Restructuring Payments for Restructuring Energy [Domain] Energy [Domain] Restructuring Reserve, by Type of Restructuring [Axis] Restructuring Type [Axis] Escrow Deposit Escrow Deposit Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay Accounts receivable balances (gross) from Medicare and Medicaid Concentration Risk Accounts Receivable Medicare And Medicaid Gross receivable balance due from Medicare and Medicaid programs. Stock compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Peter J. Wilkinson [Member] Peter J. Wilkinson Contingent Consideration Classified as Equity, Fair Value Disclosure Contingent Consideration Classified as Equity, Fair Value Disclosure Liability Class [Axis] Liability Class [Axis] Auditor Firm ID Auditor Firm ID Deferred Tax Assets, Operating Loss Carryforwards, State and Local Deferred Tax Assets, Operating Loss Carryforwards, State and Local Segments [Domain] Segments [Domain] Loss Contingency, Damages Sought, Value Loss Contingency, Damages Sought, Value Income Statement Location [Axis] Statement of Income Location, Balance [Axis] Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Defined Benefit Plan, Benefit Obligation Defined Benefit Plan, Benefit Obligation Fair Value, Liabilities Measured on Recurring Basis, Disclosure Items [Domain] Fair Value Hierarchy and NAV [Domain] Variable Lease, Payment Variable Lease, Payment Shipping costs Freight Freight Balance Sheet Location [Domain] Statement of Financial Position Location, Balance [Domain] Increase in supplies inventory Increase (Decrease) in Inventories Effective Income Tax Rate Reconciliation, Tax Credit, Other, Percent Effective Income Tax Rate Reconciliation, Tax Credit, Other, Percent Less accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Senior Notes Senior Notes [Member] Unbilled Services, Allowance for Credit Loss Unbilled Services, Allowance for Credit Loss Unbilled Services, Allowance for Credit Loss Business Combination, Recognized Liability Assumed, Liability Business Combination, Recognized Liability Assumed, Liability Fair value of the employee's purchase right Employee Stock Purchase Plan Fair Value Employee Purchase Right The fair value of the employee's purchase right calculated using the Black-Scholes model. All Executive Categories All Executive Categories [Member] Schedule of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Inventory, Finished Goods, Net of Reserves Inventory, Finished Goods, Net of Reserves Common stock, 82.2 and 83.4 shares outstanding at December 31, 2025, and 2024, respectively Common Stock, Value, Issued Finance Lease, Right-of-Use Asset Finance Lease, Right-of-Use Asset, after Accumulated Amortization Senior Notes due 2025 paid in 2024 Senior Notes due 2025 paid in 2024 [Member] Senior Notes due 2025 paid in 2024 Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current Operating Activities [Domain] Operating Activities [Domain] Commitments and contingent liabilities Commitments and Contingencies 2029 Swap Agreements 2029 Swap Agreements [Member] 2029 Swap Agreements Lease Disclosure Table Text Block Lease Disclosure Table Text Block [Table Text Block] Lease Disclosure Table Text Block Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived Fair Value Measured at Net Asset Value Per Share Fair Value Measured at Net Asset Value Per Share [Member] Business Combination [Axis] Business Combination [Axis] Comprehensive earnings Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Schedule of Nonvested Share Activity Schedule of Nonvested Share Activity [Table Text Block] 2031 and 2034 Swap Agreements 2031 and 2034 Swap Agreements [Member] 2031 and 2034 Swap Agreements Valuation Allowance [Line Items] Valuation Allowance [Line Items] Parkview Health Systems, Inc. Parkview Health Systems, Inc. [Member] Parkview Health Systems, Inc. Short-term Debt [Line Items] Short-Term Debt [Line Items] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Noncontrolling interest puts Fair Value Liabilities Measured On Recurring Basis Noncontrolling Interest Puts This element represents a certain statement of financial position liability caption which represents a class of liabilities, or which may include an individual liability, measured at fair value on a recurring basis. 2.70% senior notes due 2031 [Member] 2.70% senior notes due 2031 [Member] 2.70% senior notes due 2031 Number Of Foreign Currency Derivatives Held Number Of Foreign Currency Derivatives Held Q3 Number Of Foreign Currency Derivatives Held Q3 Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Scenario [Axis] Statement, Scenario [Axis] Scenario [Axis] Business Combination, Recognized Liability Assumed, Deferred Tax Liability Business Combination, Recognized Liability Assumed, Deferred Tax Liability Measurement Period Adjustments Measurement Period Adjustments [Member] Measurement Period Adjustments Schedule of Unrecognized Tax Benefits Roll Forward Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Assumed Benefit Payments By Year Assumed Benefit Payments By Year [Table Text Block] A schedule of assumed benefit payments for future periods by year. This element may be used for defined benefit, nonqualified supplemental retirement, and post-retirement benefit plans. Domestic Plan [Member] Domestic Plan [Member] Derivative Contract [Domain] Derivative Contract [Domain] Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Defined Benefit Plan, Expected Future Benefit Payment, Year Five Defined Benefit Plan, Expected Future Benefit Payment, Year Five Other, net Disposal Group, Including Discontinued Operations, Other Nonoperating income (expense) Disposal Group, Including Discontinued Operations, Other Nonoperating income (expense) All Individuals All Individuals [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Contract Termination Costs Contract Termination [Member] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Income [Abstract] Income [Abstract] Minimum threshold percentage required to recognize income tax benefit (in hundredths) Income Tax Benefit Minimum Certainty Percentage For tax positions that are more likely than not to be sustained on audit by the taxing authority, the entity recognizes the largest amount of tax benefit that it believes exceeds a minimum likelihood of being recognized. This element represents the minimum percentage of likelihood that a tax benefit will be realized that the entity uses to assess if a benefit should be recognized. Capital expenditures Payments to Acquire Property, Plant, and Equipment Selling, general, and administrative expenses Disposal Group, Including Discontinued Operation, General and Administrative Expense Name Forgone Recovery, Individual Name Restructuring Reserve, Noncurrent Restructuring Reserve, Noncurrent Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Net cash provided by discontinued operating activities Cash Provided by (Used in) Operating Activity, Discontinued Operation Geographic Distribution, Domestic [Member] Geographic Distribution, Domestic [Member] Supplemental Cash Flow Disclosure [Table] Supplemental Cash Flow Disclosure [Table] Supplemental Cash Flow Disclosure Effective Income Tax Rate Reconciliation, Nondeductible Expense, Worthless Stock Loss, Amount Effective Income Tax Rate Reconciliation, Nondeductible Expense, Worthless Stock Loss, Amount Effective Income Tax Rate Reconciliation, Nondeductible Expense, Worthless Stock Loss, Amount 3.60% Senior notes due 2027 3.60% Senior notes due 2027 3.60% Senior notes due 2027 Accrued expenses and other [Abstract] Accrued Liabilities, Current [Abstract] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Schedule of Finite-Lived Intangible Assets by Major Class [Table] Intangible Asset, Finite-Lived [Table] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Geographical [Axis] Geographical [Axis] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Nature of Uncertainty [Axis] Nature of Uncertainty [Axis] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Business Combination, Pro Forma Information, Pro Forma Revenue Business Combination, Pro Forma Information, Pro Forma Revenue Unbilled Services, Allowance for Credit Loss, Foreign Currency Translation Unbilled Services, Allowance for Credit Loss, Foreign Currency Translation Unbilled Services, Allowance for Credit Loss, Foreign Currency Translation Unearned revenue Deferred Revenue, Current Deferred Tax Assets, Capital Loss Carryforwards Deferred Tax Assets, Capital Loss Carryforwards Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Title of 12(b) Security Title of 12(b) Security Aggregate intrinsic value, exercisable options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Non-compete agreements [Member] Noncompete Agreements [Member] Proceeds from Equity Method Investment, Distribution, Return of Capital Proceeds from Equity Method Investment, Distribution, Return of Capital Contract with Customer, Sales Channel [Domain] Contract with Customer, Sales Channel [Domain] Reversal of Accrued Income Tax Penalties And Interest Reversal of Accrued Income Tax Penalties And Interest Reversal of Accrued Income Tax Penalties And Interest Potential common shares not included in computation of diluted earnings per share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Credit carryforwards Tax Credit Carryforward, Amount Short-term Debt, Type [Axis] Short-Term Debt, Type [Axis] Accounts receivable from Ontario government sponsored healthcare plan Accounts receivable from Ontario government sponsored healthcare plan Accounts receivable from Ontario government sponsored healthcare plan Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Thereafter Finance Lease, Liability, to be Paid, after Year Five Baystate Medical Center Baystate Medical Center [Member] Baystate Medical Center Award Timing Disclosures [Line Items] Service cost Defined Benefit Plan, Service Cost Measurement Frequency [Domain] Measurement Frequency [Domain] Lessee, Operating Lease, Renewal Term Lessee, Operating Lease, Renewal Term Estimated useful life of capitalized software minimum (in years) Property plant and equipment useful life software minimum Property plant and equipment useful life software minimum PREFERRED STOCK AND COMMON SHAREHOLDERS' EQUITY Equity [Text Block] State Deferred State and Local Income Tax Expense (Benefit) Net earnings attributable to Labcorp Holdings Inc. Net earnings attributable to Labcorp Holdings Inc. Net earnings, basic Net Income (Loss) Attributable to Parent Operating Lease, Liability [Abstract] Operating Lease, Liability [Abstract] Restructuring and other charges Disposal Group, Including Discontinued Operation, Restructuring and other charges Disposal Group, Including Discontinued Operation, Restructuring and other charges Construction in progress [Member] Construction in Progress [Member] Other Other Accrued Liabilities, Current Jefferson Health Jefferson Health [Member] Jefferson Health Basic earnings per share from discontinued operations Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share Schedule of Effective Income Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Axis] Interest expense Disposal Group, Including Discontinued Operation, Interest Expense Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Foreign Tax Loss Carryovers Expire Through 2041 Foreign Tax Loss Carryovers Expire in 2034 Foreign Tax Loss Carryovers Expire Through 2041 Senior notes due 2031 Senior notes due 2031 [Member] Senior notes due 2031 Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Biopharma Laboratory Services Biopharma Laboratory Services [Member] Biopharma Laboratory Services Purchase of common stock Payments for Repurchase of Common Stock Payments for Repurchase of Common Stock Adoption Date Trading Arrangement Adoption Date Line of Credit Facility, Commitment Fee Description Line of Credit Facility, Commitment Fee Description Lessee, Operating Lease, Term of Contract Lessee, Operating Lease, Term of Contract Customer [Axis] Customer [Axis] Selling, General and Administrative Expenses Selling, General and Administrative Expenses, Policy [Policy Text Block] Restricted stock and performance share compensation expense Restricted Stock Performance Shares Expense The noncash expense that represents the cost of restricted stock and performance shares distributed to employees as compensation. Customer Relationships [Member] Customer Relationships [Member] Operating income Operating Income (Loss) Operating Income (Loss) Retained earnings Retained Earnings (Accumulated Deficit) Schedule of Net Funded Status Schedule of Net Funded Status [Table Text Block] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Shares Available For Issuance or Grant Under 2016 Omnibus Plan Shares Available For Issuance or Grant Under 2016 Omnibus Plan Shares Available For Issuance or Grant Under 2016 Omnibus Plan Class of Stock [Axis] Class of Stock [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Effective Income Tax Rate Reconciliation, Cross-Border, Other, Amount Effective Income Tax Rate Reconciliation, Cross-Border, Other, Amount Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Other Deferred Tax Liabilities, Other Retirement Plan Type [Axis] Retirement Plan Type [Axis] Payables and Accruals [Abstract] Payables and Accruals [Abstract] Other, net Other Nonoperating Income (Expense) Statement [Table] Statement [Table] Change in capital expenditures incurred but not paid Change in capital expenditures incurred but not paid Change in capital expenditures incurred but not paid Actual return on plan assets Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) Deferred Income Tax Expense (Benefit) Deferred Income Tax Expense (Benefit) Adjustments to reconcile net earnings to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Decrease in reserve as a result of lapses in the statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Restructure charge gross Restructure charge gross Restructure charge gross CASH FLOWS FROM FINANCING ACTIVITIES: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Foreign Tax Jurisdiction, Other [Member] Foreign Tax Jurisdiction, Other [Member] Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill Variable Rate [Domain] Variable Rate [Domain] Financing lease liabilities Finance Lease, Liability, Noncurrent Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] All Adjustments to Compensation All Adjustments to Compensation [Member] Amendment Flag Amendment Flag Other Comprehensive Income Location [Axis] Other Comprehensive Income Location [Axis] Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Acquired amortizable intangible assets and their respective weighted average amortization periods Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] Performance share awards, vesting conditions Share Based Compensation Arrangement Performance Share Awards Vesting Conditions Description of performance share award terms as to how many shares or portion of an award are no longer contingent on satisfaction of certain performance conditions, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. Termination Date Trading Arrangement Termination Date Decrease in unbilled services Increase (Decrease) in Contract with Customer, Asset Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Operating Lease, Weighted Average Discount Rate, Percent Operating Lease, Weighted Average Discount Rate, Percent Accrued interest and penalties related to unrecognized income tax benefits Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Outstanding shares, basic (in shares) Weighted Average Number of Shares Outstanding, Basic SUPPLEMENTAL CASH FLOW INFORMATION Cash Flow, Supplemental Disclosures [Text Block] Unrecognized income tax benefits that would impact effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Reconciliation of Basic earnings per Share to Diluted Earnings per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Federal tax loss carryovers Federal Tax Loss Carryovers The federal loss carryovers, before tax effects, available to reduce future taxable income under enacted tax laws. Options Outstanding and Exercisable at December 31, 2013, by Range of Exercise Prices [Domain] Exercise Price Range [Domain] Segment Reporting [Abstract] Segment Reporting [Abstract] Finite-Lived Intangible Assets, Future Amortization Expense Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Cost of revenues Cost of Revenue Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Employee stock purchase plan in the entity's stock incentive plan. Operating Lease, Expense Operating Lease, Expense Debt Disclosure [Abstract] Debt Disclosure [Abstract] Defined Benefit Plan, Plan Assets, Category [Axis] Defined Benefit Plan, Plan Assets, Category [Axis] Scenario [Domain] Scenario [Domain] Accounts Receivable, Allowance for Credit Loss, Writeoff Accounts Receivable, Allowance for Credit Loss, Writeoff Accounts Receivable, before Allowance for Credit Loss Accounts Receivable, before Allowance for Credit Loss Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangements by Share-based Payment Award Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Defined Benefit Plan, Plan Amendment [Abstract] Defined Benefit Plan, Plan Amendment [Abstract] Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years Geographic Distribution [Axis] Geographic Distribution [Axis] Finance Lease, Interest Payment on Liability Finance Lease, Interest Payment on Liability Dividends paid Payments of Dividends Proceeds from Sales of Business, Affiliate and Productive Assets Proceeds from Sales of Business, Affiliate and Productive Assets Insider Trading Arrangements [Line Items] Cross currency swaps liability Foreign Currency Contracts, Liability, Fair Value Disclosure Accounts Receivable, Allowance for Credit Loss, Writeoff Allowance for Credit Loss, Writeoff Allowance for Credit Loss, Writeoff Equity Securities [Member] Equity Securities [Member] Total liabilities Liabilities Currency [Axis] Currency [Axis] 2030 Finance Lease, Liability, to be Paid, Year Five Defined Benefit Plan Fair Value Of Plan Assets By Category Defined Benefit Plan Fair Value Of Plan Assets By Category [Table Text Block] A schedule of plan assets at fair value by asset category. Investment income Investment Income, Net Pharmaceutical, biotechnology, medical device, and diagnostic companies, and CROs Biopharmaceutical and medical device companies [Member] Biopharmaceutical and medical device companies [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Increase in reserve for tax positions taken in the current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Percent of Revenue Contributed Percent of Revenue Contributed Percent of Revenue Contributed Trademarks and Trade Names [Member] Trademarks and Trade Names [Member] Consolidation Items [Axis] Consolidation Items [Axis] Variable Rate [Axis] Variable Rate [Axis] Tax Credit Carryforward, Name [Domain] Tax Credit Carryforward, Name [Domain] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Audit Information [Abstract] Audit Information Non-NEOs Non-NEOs [Member]