Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Weighted Average Shares Outstanding (000’s): Weighted Average Number of Shares Outstanding, Diluted [Abstract] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Euro Denominated 3.800% Notes Due 2036 Euro Denominated 3.800% Notes Due 2036 [Member] Euro Denominated 3.800% Notes Due 2036 Statistical Measurement [Domain] Statistical Measurement [Domain] Title of 12(b) Security Title of 12(b) Security Document Fiscal Year Focus Document Fiscal Year Focus Remaining performance obligations, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Derivative Instruments Gain Loss By Hedging Relationship By Income Statement Location By Derivative Instrument Risk Table Derivative Instruments, Gain (Loss) [Table] Adjustment to Compensation, Amount Adjustment to Compensation Amount Other balance sheet items Other Balance Sheet Items [Member] -- None. No documentation exists for this element. -- Euro Denominated 3.00% Notes Due 2028 Euro Denominated 3.00% Notes Due 2028 [Member] Euro Denominated 3.00% Notes Due 2028 Customer [Axis] Customer [Axis] Segment Reporting [Abstract] Segment Reporting [Abstract] Ordinary shares, €0.001 par value, authorized 1,750,000,000 shares, 2026 and 2025 issued: 490,766,972 ordinary shares Common Stock, Value, Issued Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Entity Addresses [Table] Entity Addresses [Table] Retirement Programs Retirement Benefits [Text Block] Line of Credit Line of Credit [Member] Restatement Determination Date Restatement Determination Date Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Derivative Instrument [Axis] Derivative Instrument [Axis] US Long-term 3.20% Due 2026 US Long-term 3.20% Due 2026 [Member] US Long-term 3.20% Due 2026 [Member] Allowances for expected credit losses Accounts Receivable, Allowance for Credit Loss Intercompany Loans Intercompany Loans [Member] Intercompany Loans Amendment Flag Amendment Flag Provisions for expected credit losses Accounts Receivable, Credit Loss Expense (Reversal) Credit Default Swap Credit Default Swap [Member] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Supplemental Information [Abstract] Supplemental Information [Abstract] -- None. No documentation exists for this element. -- Purchase accounting impacts - Linde AG (a) Operating Profit, Purchase Accounting Adjustments Operating Profit, Purchase Accounting Adjustments Contract​ asset in other long-term assets Contract​ With ​Customer ​Asset​ Non-Current Contract​ With ​Customer ​Asset​ Non-Current Euro Denominated 2.439% Notes Due 2027 Euro Denominated 2.439% Notes Due 2027 [Member] Euro Denominated 2.439% Notes Due 2027 Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Euro Denominated 3.75% Notes Due 2044 Euro Denominated 3.75% Notes Due 2044 [Member] Euro Denominated 3.75% Notes Due 2044 Retirement program remeasurements Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment and Tax Increase (Decrease) in Cash and Cash Equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation [Abstract] Entity Address, State or Province Entity Address, State or Province PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par value (euro per share) Common Stock, Par or Stated Value Per Share Translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Other intangible assets - net Intangible Asset, Excluding Goodwill, after Accumulated Amortization Notional value Notional Amounts Derivative, Notional Amount Basic shares outstanding (in shares) Weighted average shares used in basic earnings per share (in shares) Weighted Average Number of Shares Outstanding, Basic Contract assets Contract with Customer, Asset, after Allowance for Credit Loss, Current Retirement Benefits [Abstract] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Number of reportable segments Number of Reportable Segments Total Current Liabilities Liabilities, Current Forecasted Transactions Forecasted Transactions [Member] Forecasted Transactions Work in process Inventory, Work in Process, Net of Reserves OTHER COMPREHENSIVE INCOME (LOSS) Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Entity Address, City or Town Entity Address, City or Town Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Commercial paper Commercial Paper Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Revenue from Contract with Customer Revenue from Contract with Customer Benchmark [Member] Amount recognized in Net pension and OPEB cost (benefit), excluding service cost Nonoperating Income (Expense) [Abstract] Level 2 Fair Value, Inputs, Level 2 [Member] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Unsecured revolving credit agreements Line of Credit Facility, Maximum Borrowing Capacity Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Additions (reductions) (b) Additions (reductions) to noncontrolling interests Equity impact of additions (reductions) to noncontrolling interests result due to an issuance of additional equity interests to noncontrolling interest holders or the sale of a portion of the parent's controlling interest or the purchase by the parent of an additional interest in the subsidiary. Less: current portion of long-term debt Long-Term Debt, Current Maturities Swiss Franc Denominated 1.0629% Notes Due 2033 Swiss Franc Denominated 1.0629% Notes Due 2033 [Member] Swiss Franc Denominated 1.0629% Notes Due 2033 Euro Denominated 3.200% Notes Due 2030 Euro Denominated 3.200% Notes Due 2030 [Member] Euro Denominated 3.200% Notes Due 2030 Concentration Risk Type [Axis] Concentration Risk Type [Axis] Derivative instruments Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Debt Instrument [Table] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Accounting Standards to be Implemented New Accounting Pronouncements, Policy [Policy Text Block] Noncontrolling Interests Noncontrolling Interest [Member] Schedule of Segment Reporting Information Segment Reporting [Table Text Block] Weighted average shares outstanding (in shares) Weighted Average Number of Shares Issued, Basic Income taxes Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax Euro-denominated notes and intercompany loans Notes and Loans Payable, Related Parties Notes and Loans Payable, Related Parties Derivative instruments (Note 4): Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax, Parent [Abstract] Carrying value of long-term debt portfolio Long-Term Debt SHORT-TERM Short-Term Debt [Abstract] Long-term supply contracts (years) Revenue, Performance Obligation, Contract Term Revenue, Performance Obligation, Contract Term 364-Day Credit Agreement 364-Day Credit Agreement [Member] 364-Day Credit Agreement Document Period End Date Document Period End Date Working capital: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Net cash provided by (used for) investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Equity Equity [Text Block] Security Exchange Name Security Exchange Name Less: Treasury shares, at cost (2026 – 29,786,809 shares and 2025 – 27,086,030 shares) Treasury Stock, Common, Value Divestitures, net of cash divested and asset sales Proceeds from Sales of Business, Affiliate and Productive Assets Entity Addresses [Line Items] Entity Addresses [Line Items] Accumulated other comprehensive income (loss) Total cumulative translation adjustment - net of taxes Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] Pension contributions Pension contributions Payment for Pension Benefits Reclassifications to net income Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Earnings Per Share - Linde plc Shareholders Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Derivatives - net of taxes AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax Per Share Data – Linde plc Shareholders Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Different types of derivatives, number Different Types of Derivatives, Number Different Types of Derivatives, Number Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Total Liabilities Liabilities Trading Symbol Trading Symbol Euro Denominated 1.00% Notes Due 2028 Euro Denominated 1.00% Notes Due 2028 [Member] Euro Denominated 1.00% Notes Due 2028 [Member] Capital expenditures Payments to Acquire Property, Plant, and Equipment 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] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Company Selected Measure Name Company Selected Measure Name On-site product supply contract (years) Product Supply Contract, Term Product Supply Contract, Term Funded status - retirement obligations (Note 7): Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent [Abstract] Borrowings outstanding Long-Term Debt, Gross Schedule of Derivative Instruments Not Designated as Hedging Instruments Derivatives Not Designated as Hedging Instruments [Table Text Block] Credit Facility [Domain] Credit Facility [Domain] Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Operations Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Diluted shares outstanding (in shares) Weighted average shares used in diluted earnings per share (in shares) Weighted Average Number of Shares Outstanding, Diluted Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Line Of Credit Facilities [Table] Line of Credit Facility [Table] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Property, plant and equipment - net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Short-term debt Total short-term debt Short-Term Debt Fair value, liabilities Derivative liabilities Derivative Liability, Subject to Master Netting Arrangement, before Offset Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Gross other receivables Other Receivables Euro Denominated 1.625% Notes Due 2035 Euro Denominated 1.625% Notes Due 2035 [Member] Euro Denominated 1.625% Notes Due 2035 Engineering Engineering Engineering Segment [Member] Engineering Segment [Member] Credit Agreements Credit Agreements [Member] Credit Agreement [Member] Income Before Equity Investments Income (Loss) From Continuing Operations Before Equity Method Investments, Noncontrolling Interest Income (Loss) From Continuing Operations Before Equity Method Investments, Noncontrolling Interest Long-term assets, liabilities and other Increase (Decrease) in Other Operating Assets and Liabilities, Net Award Timing Predetermined Award Timing Predetermined [Flag] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Share-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Level 1 Fair Value, Inputs, Level 1 [Member] Five Year Credit Agreement Five Year Credit Agreement [Member] Five Year Credit Agreement Stock options and awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements All Executive Categories All Executive Categories [Member] TOTAL OTHER COMPREHENSIVE INCOME (LOSS) Other Comprehensive Income (Loss) Including Portion Attributable To Redeemable Non-Controlling Interest, Net Of Tax Other Comprehensive Income (Loss) Including Portion Attributable To Redeemable Non-Controlling Interest, Net Of Tax Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Schedule of Components of Net Pension and Postretirement Benefits Schedule of Net Benefit Costs [Table Text Block] Redeemable noncontrolling interests Redeemable Noncontrolling Interest, Equity, Carrying Amount Forward Exchange Transactions Forward Exchange Transactions [Member] Forward Exchange Transactions Concentration Risk Type [Domain] Concentration Risk Type [Domain] Euro Denominated 3.00% Notes Due 2033 Euro Denominated 3.00% Notes Due 2033 [Member] Euro Denominated 3.00% Notes Due 2033 APAC APAC APAC Segment [Member] APAC Segment [Member] Amount recognized in Operating Profit Operating Income (Loss) [Abstract] Schedule of Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Pension / OPEB (net of tax obligations of $105 million and $102 million at June 30, 2026 and December 31, 2025, respectively) Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax Current portion of long-term debt Long-Term Debt and Lease Obligation, Current Segment Information Segment Reporting [Text Block] Minimum Minimum [Member] Cash dividends - Linde plc shareholders Payments of Ordinary Dividends, Common Stock Expiration Date Trading Arrangement Expiration Date Investments and securities Investments, Fair Value Disclosure Hedging Relationship [Axis] Hedging Relationship [Axis] Schedule of Revenue by Distribution Method Disaggregation of Revenue [Table 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 Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Total Equity Balance, beginning of period Balance, end of period Equity, Including Portion Attributable to Noncontrolling Interest Euro Denominated 2.625% Notes Due 2029 Euro Denominated 2.625% Notes Due 2029 [Member] Euro Denominated 2.625% Notes Due 2029 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] Euro Denominated 1.652% Notes Due 2027 Euro Denominated 1.652% Notes Due 2027 [Member] Euro Denominated 1.652% Notes Due 2027 [Member] Issuances of ordinary shares: Issuance of Shares [Abstract] Issuance of Shares Net periodic benefit cost (benefit) Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Derivative [Table] Derivative [Table] Issuances of ordinary shares Proceeds from Issuance of Common Stock Common stock, authorized (in shares) Common Stock, Shares Authorized Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] US Long-term 3.55% Notes Due 2042 US Long-term 3.55% Notes Due 2042 [Member] US Long-term 3.55% Notes Due 2042 [Member] Euro Denominated 0.550% Notes Due 2032 Euro Denominated 0.550% Notes Due 2032 [Member] Euro Denominated 0.550% Notes Due 2032 Exercise Price Award Exercise Price Investing Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Segment Reporting [Line Items] Segment Reporting [Line Items] Document Quarterly Report Document Quarterly Report Assets Derivative Asset [Abstract] 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] Segments [Domain] Segments [Domain] Interest rate swaps Interest Rate Swap [Member] US Long-term 1.10% Notes Due 2030 US Long-term 1.10% Notes Due 2030 [Member] US Long-term 1.10% Notes Due 2030 Income Before Income Taxes and Equity Investments Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Debt Debt Disclosure [Text Block] Long-term debt repayments Repayments of notes Repayments of Long-Term Debt Liabilities Derivative Liability [Abstract] Denominator Denominator (Details) [Abstract] -- None. No documentation exists for this element. -- px_EarningsPerShareDenominatorAbstract CHF-denominated intercompany loans Notes Payable, Related Parties Notes Payable, Related Parties Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Gross trade receivables aged less than one year Accounts Receivable, before Allowance for Credit Loss, Current Adoption Date Trading Arrangement Adoption Date Interest rate Debt Instrument, Interest Rate, Stated Percentage Total Linde plc Shareholders’ Equity Equity, Attributable to Parent Entity Addresses, Address Type [Axis] Entity Addresses, Address Type [Axis] Euro Denominated 3.500% Notes Due 2034 Euro Denominated 3.500% Notes Due 2034 [Member] Euro Denominated 3.500% Notes Due 2034 Assets Assets [Abstract] Euro Denominated 3.250% Notes Due 2037 Euro Denominated 3.250% Notes Due 2037 [Member] Euro Denominated 3.250% Notes Due 2037 Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Accounting Policies [Abstract] Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Insider Trading Policies and Procedures [Line Items] Noncontrolling interest transactions and other Proceeds from (Payment for) Other Financing Activity Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Selling, general and administrative Selling, General and Administrative Expense Business Combination [Domain] Business Combination [Domain] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Number of operating segments Number of Operating Segments Antidilutive shares excluded from computation of earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Entity Central Index Key Entity Central Index Key Gazprom PJSC Gazprom PJSC [Member] Gazprom PJSC All Adjustments to Compensation All Adjustments to Compensation [Member] Euro Denominated 3.40% Notes Due 2036 Euro Denominated 3.40% Notes Due 2036 [Member] Euro Denominated 3.40% Notes Due 2036 Business Combination [Axis] Business Combination [Axis] Equity [Abstract] 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] Net cash provided by (used for) operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Remaining performance obligation, percentage Revenue, Remaining Performance Obligation, Percentage Contract​ ​asset​, current Contract​ With​ Customer​ Asset​ Current Contract​ With​ Customer​ Asset​ Current Linde plc Shareholders’ Equity (Note 10): Equity, Attributable to Parent [Abstract] Income Statement [Abstract] Income Statement [Abstract] Euro Denominated 2.604% Notes Due 2028 Euro Denominated 2.604% Notes Due 2028 [Member] Euro Denominated 2.604% Notes Due 2028 Document Transition Report Document Transition Report Inventories Inventory, Finished Goods and Work in Process, Gross [Abstract] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Designated as hedging instrument Derivatives Designated as Hedging Instruments: Designated as Hedging Instrument [Member] Intersegment Eliminations Intersegment Eliminations [Member] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Fair value increase Increase (Decrease) in Fair Value of Interest Rate Fair Value Hedging Instruments Forward exchange contracts, net interest income Foreign ​Currency​ Contracts, Interest Income Foreign ​Currency​ Contracts, Interest Income City Area Code City Area Code All Individuals All Individuals [Member] Estimated fair value of long-term debt portfolio Debt Instrument, Fair Value Disclosure Linde AG Linde Aktiengesellschaft [Member] Linde Aktiengesellschaft [Member] Name Forgone Recovery, Individual Name Finished goods Inventory, Finished Goods, Net of Reserves Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Euro Denominated 1.00% Notes Due 2027 Euro Denominated 1.00% Notes Due 2027 [Member] Euro Denominated 1.00% Notes Due 2027 Total Assets Assets Entity [Domain] Entity [Domain] Schedule Of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan [Table] Euro Denominated 3.125% Notes Due 2032 Euro Denominated 3.125% Notes Due 2032 [Member] Euro Denominated 3.125% Notes Due 2032 Operating Segments Operating Segments [Member] Interest expense - net Interest Expense, Nonoperating PEO PEO [Member] Total debt Debt, Long-Term and Short-Term, Combined Amount Share-based compensation Share-Based Payment Arrangement, Expense Other long-term liabilities Other Liabilities, Noncurrent Goodwill Goodwill Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Revenue recognized Contract with Customer, Liability, Revenue Recognized Euro Denominated 3.20% Notes Due 2031 Euro Denominated 3.20% Notes Due 2031 [Member] Euro Denominated 3.20% Notes Due 2031 Revolving Credit Facility Revolving Credit Facility [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Gross receivables aged greater than one year Accounts Receivable, before Allowance for Credit Loss, Noncurrent Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Ordinary shares, outstanding (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Purchase accounting impacts - Linde AG (a) Depreciation, Depletion and Amortization, Purchase Accounting Adjustments Depreciation, Depletion and Amortization, Purchase Accounting Adjustments Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Current Reporting Status Entity Current Reporting Status Net cash provided by (used for) financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Prepaid and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Country Region Country Region Forecasted transactions Forecasted Purchases [Member] -- None. No documentation exists for this element. -- Other Address Other Address [Member] Loss on exchange rate movements Cumulative translation adjustment - net of taxes Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Line Of Credit Facility [Line Items] Line of Credit Facility [Line Items] Sales Channel Sales Channel [Member] Sales Channel [Member] EMEA EMEA EMEA Segment [Member] EMEA Segment [Member] Research and development Research and Development Expense Adjustments to reconcile net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Financing Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Sales Revenue from Contract with Customer, Excluding Assessed Tax Schedule of Changes in Total Equity Schedule of Stockholders Equity [Table Text Block] Interest cost Defined Benefit Plan, Interest Cost Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount Less: noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Revenue Recognition Revenue from Contract with Customer [Text Block] Squeeze-Out Transaction Squeeze-Out Transaction [Member] Squeeze-Out Transaction [Member] Other investing, net Payment for (Proceeds from) Other Investing Activity Inventory Increase (Decrease) in Inventories Address Type [Domain] Address Type [Domain] Amur GPP Amur GPP [Member] Amur GPP Segment Reporting [Table] Segment Reporting [Table] Required contributions to pension plans Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year Contract with Customer, Sales Channel [Axis] Contract with Customer, Sales Channel [Axis] Prepaid and other current assets Other Assets, Current Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Income taxes Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax Operating Profit Total operating profit Operating Income (Loss) Estimated consideration related to unsatisfied performance obligations Revenue, Remaining Performance Obligation, Amount Current Fiscal Year End Date Current Fiscal Year End Date Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Derivative [Line Items] Derivative [Line Items] 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] Dividends paid (in dollars per share) Common Stock, Dividends, Per Share, Declared US Long-term 2.00% Notes Due 2050 US Long-term 2.00% Notes Due 2050 [Member] US Long-term 2.00% Notes Due 2050 Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Service cost Defined Benefit Plan, Service Cost Short-term debt borrowings (repayments) - net Proceeds from (Repayments of) Short-Term Debt Euro Denominated 3.375% Notes Due 2029 Euro Denominated 3.375% Notes Due 2029 [Member] Euro Denominated 3.375% Notes Due 2029 Dividends and other capital changes Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Reclassifications to net income Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Common stock, issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Credit Derivatives Contract Type [Domain] Credit Derivatives Contract Type [Domain] LONG-TERM Long-Term Debt, Current and Noncurrent [Abstract] Treasury stock (in shares) Treasury Stock, Common, Shares Cost of sales, exclusive of depreciation and amortization Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization Equity Components [Axis] Equity Components [Axis] Accounts receivable Increase (Decrease) in Accounts Receivable Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Euro Denominated 1.90% Notes Due 2030 Euro Denominated 1.90% Notes Due 2030 [Member] Euro Denominated 1.90% Notes Due 2030 [Member] Entity Interactive Data Current Entity Interactive Data Current Less: noncontrolling interests Add: Noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest US Long-term 3.434% Notes Due 2026 US Long-term 3.434% Notes Due 2026 [Member] US Long-term 3.434% Notes Due 2026 [Member] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] RusChemAlliance (RCA) RusChemAlliance (RCA) [Member] RusChemAlliance (RCA) Amount of pre-tax gain (loss) recognized in earnings Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Entity Small Business Entity Small Business COMPREHENSIVE INCOME (LOSS) - LINDE PLC Comprehensive Income (Loss), Net of Tax, Attributable to Parent Termination Date Trading Arrangement Termination Date For employee savings and incentive plans Stock Issued During Period Value Employee Savings And Incentive Plans Value of stock issued as a result of employee savings and incentive plans recorded above par value. Fair Value Assets and Liabilities Measured On Recurring and Nonrecurring Basis Table Fair Value, Recurring and Nonrecurring [Table] Balance sheet items Balance Sheet Items [Member] -- None. No documentation exists for this element. -- Balance Sheet Items Member Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Funded status - retirement obligations Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Other current liabilities Other Liabilities, Current Other long-term assets Other Assets, Noncurrent Document Type Document Type Acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Assets and Liabilities Measured on a Recurring Basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Income taxes Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Shares earned and issuable under compensation plans (in shares) Shares Earned And Issuable Under Compensation Plans Shares earned and issuable under Praxair compensation plans which have a dilutive impact on the earnings per share and as such have been included therein. Fair Value as of Grant Date Award Grant Date Fair Value Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Long-term debt borrowings Proceeds from Issuance of Long-Term Debt Local Phone Number Local Phone Number Contract liabilities in other long-term liabilities Contract with Customer, Liability, Noncurrent Supplemental Information Additional Financial Information Disclosure [Text Block] Maximum allowed asset value owned (as a percent) Restricted Investments Maximum Allowed Asset Value, Owned Percentage Restricted Investments Maximum Allowed Asset Value, Owned Percentage Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Net Investment Hedging Net Investment Hedging [Member] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Income from equity investments Income (Loss) from Equity Method Investments Payables and accruals Increase (Decrease) in Accounts Payable and Accrued Liabilities Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Liabilities and Equity Liabilities and Equity [Abstract] Other Commitments [Table] Other Commitments [Table] Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Inventories Total inventories Inventory, Net All Award Types Award Type [Domain] Other Other Distribution Methods [Member] Other distribution methods, primarily surface technologies Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Fair Value Disclosures Fair Value Disclosures [Text Block] Level 3 Fair Value, Inputs, Level 3 [Member] Deferred income taxes Deferred Income Tax Expense (Benefit), Excluding Tax Act Impact Deferred Income Tax Expense (Benefit), Excluding Tax Act Impact On-Site On-Site [Member] On-site distribution method PEO Name PEO Name Net pension and OPEB cost (benefit), excluding service cost Total amount recognized in Net pension and OPEB cost (benefit), excluding service cost Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component Americas Americas Americas Segment [Member] Americas Segment [Member] Contract liabilities Contract with Customer, Liability Other bank borrowings (primarily non-U.S.) Other Short-Term Borrowings Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax Entity Tax Identification Number Entity Tax Identification Number Legal Entity [Axis] Legal Entity [Axis] Customer supply agreements (years) Customer Supply Agreements Customer Supply Agreements Other Commitments [Line Items] Other Commitments [Line Items] Euro Denominated 3.375% Notes Due 2030 Euro Denominated 3.375% Notes Due 2030 [Member] Euro Denominated 3.375% Notes Due 2030 Purchases of ordinary shares Treasury Stock, Value, Acquired, Cost Method Fixed costs and other Fixed Costs and Other Fixed Costs and Other Variable costs Variable Costs Variable Costs CNY-denominated intercompany loans Loans Payable, Related Parties Loans Payable, Related Parties Cash and cash equivalents, beginning-of-period Cash and cash equivalents, end-of-period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] 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] COMPREHENSIVE INCOME (LOSS) (INCLUDING NONCONTROLLING INTERESTS) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Debt Instrument [Axis] Debt Instrument [Axis] Euro Denominated 0.375% Notes Due 2033 Euro Denominated 0.375% Notes Due 2033 [Member] Euro Denominated 0.375% Notes Due 2033 Dividends to Linde plc ordinary share holders Dividends, Cash Translation adjustments: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax, Portion Attributable to Parent [Abstract] Schedule of Outstanding Debt Schedule of Debt [Table Text Block] Customer [Domain] Customer [Domain] Schedule of Inventories Schedule of Inventory, Current [Table Text Block] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Schedule of Derivative Instruments in Statement of Financial Position, Fair Value Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Basic earnings per share (in dollars per share) Earnings Per Share, Basic Purchases of ordinary shares Payments for Repurchase of Common Stock Contract liabilities Contract liabilities, current Contract with Customer, Liability, Current Total Current Assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Total long-term debt Long-Term Debt, Excluding Current Maturities Contract assets and liabilities, net Increase (Decrease) In Contract With Customer, Asset And Liability Increase (Decrease) In Contract With Customer, Asset And Liability Award Type Award Type [Axis] Current unrealized gain (loss) Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accounts receivable - net Accounts receivable net of reserves Accounts Receivable, after Allowance for Credit Loss, Current Contract assets Contract With Customer Assets Contract With Customer Assets Asserted claims for reimbursement Liability for Unpaid Claims and Claims Adjustment Expense, Reported Claims, Amount Retained earnings Retained Earnings (Accumulated Deficit) Commodity contracts Commodity Contract [Member] 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] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Derivative deferred gain (loss) Derivatives used in Net Investment Hedge, Increase (Decrease), Gross of Tax Cover [Abstract] Cover [Abstract] Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Noncontrolling interests: Noncontrolling Interest [Abstract] Swiss Franc Denominated 0.6150% Notes Due 2029 Swiss Franc Denominated 0.6150% Notes Due 2029 [Member] Swiss Franc Denominated 0.6150% Notes Due 2029 Weighted-average interest rates of short-term borrowings outstanding Short-Term Debt, Weighted Average Interest Rate, at Point in Time Concentration risk, percentage Concentration Risk, Percentage Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Equity Awards Adjustments Equity Awards Adjustments [Member] Euro Denominated 1.00% Notes Due 2051 Euro Denominated 1.00% Notes Due 2051 [Member] Euro Denominated 1.00% Notes Due 2051 Hedging Relationship [Domain] Hedging Relationship [Domain] Total Liabilities and Equity Liabilities and Equity Maximum allowed percent of net assets for asset disposal Restricted Investments, Maximum Allowed Percent of Net Assets for Asset Disposal Restricted Investments, Maximum Allowed Percent of Net Assets for Asset Disposal Employee Stock Option Share-Based Payment Arrangement, Option [Member] Noncontrolling interests Equity, Attributable to Noncontrolling Interest Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Cost reduction program and other charges Restructuring Charges Tabular List, Table Tabular List [Table Text Block] Additional paid-in capital Additional Paid in Capital Linde plc Shareholders’ Equity Parent [Member] Credit Derivatives Contract Type [Axis] Credit Derivatives Contract Type [Axis] Other income (expense) - net Other Operating Income (Expense), Net Name Awards Close in Time to MNPI Disclosures, Individual Name Entity Address, Country Entity Address, Country 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] Number of gas distribution methods Number Of Gas Distribution Methods Number Of Gas Distribution Methods Packaged Gas Packaged Gas [Member] Packaged Gas distribution method Euro Denominated 3.625% Notes Due 2034 Euro Denominated 3.625% Notes Due 2034 [Member] Euro Denominated 3.625% Notes Due 2034 Adjustment to Compensation: Adjustment to Compensation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Euro Denominated 1.375% Notes Due 2031 Euro Denominated 1.375% Notes Due 2031 [Member] Euro Denominated 1.375% Notes Due 2031 Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Euro Denominated 3.750% Notes Due 2038 Euro Denominated 3.750% Notes Due 2038 [Member] Euro Denominated 3.750% Notes Due 2038 Hedging Designation [Axis] Hedging Designation [Axis] Debt-related Debt-Related [Member] -- None. No documentation exists for this element. -- Credit Facility [Axis] Credit Facility [Axis] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total Assets, Fair Value Disclosure Long-term debt Long-Term Debt and Lease Obligation Name Measure Name Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Cost reduction program and other charges Other Noncash Income (Expense) Debt Instrument [Line Items] Debt Instrument [Line Items] Cumulative deferred gain Derivatives Used In Net Investment Hedge Increase (Decrease) Since Inception, Gross Of Tax Derivatives Used In Net Investment Hedge Increase (Decrease) Since Inception, Gross Of Tax Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Other Corporate Segment and Other Operating Segment [Member] Entity Filer Category Entity Filer Category Merchant Merchant [Member] Merchant distribution method Euro Denominated 0.00% Notes Due 2026 Euro Denominated 0.00% Notes Due 2026 [Member] Euro Denominated 0.00% Notes Due 2026 Euro Denominated 0.250% Notes Due 2027 Euro Denominated 0.250% Notes Due 2027 [Member] Euro Denominated 0.250% Notes Due 2027 Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and Cash Equivalent Other Other US Long Term [Member] -- None. No documentation exists for this element. -- Raw materials and supplies Inventory, Raw Materials, Net of Reserves Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Company Selected Measure Amount Company Selected Measure Amount Derivatives Not Designated as Hedging Instruments: Derivatives Not Designated as Hedging Instruments Not Designated as Hedging Instrument [Member] Entity Address, Address Line Two Entity Address, Address Line Two Net Income (Including Noncontrolling Interests) NET INCOME (INCLUDING NONCONTROLLING INTERESTS) Net Income (including noncontrolling interests) Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Business acquisition, share price (in euro per share) Business Combination, Price Per Share Contract with Customer, Sales Channel [Domain] Contract with Customer, Sales Channel [Domain] Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Income taxes Income Tax Expense (Benefit) Derivatives designated as hedging instruments - fair value Fair Value Hedging [Member] Effect of dilutive securities Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] Award Timing Method Award Timing Method [Text Block] Change in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Pension / OPEB funded status obligation, tax benefit Funded Status Obligations, Taxes -- None. No documentation exists for this element. -- px_Definedbenefitplanamountsrecognizedinothercomprehensiveincomedeferredtaxbenefit Numerator Net Income (Loss) Attributable to Parent [Abstract] Net amortization and deferral (gain) loss Defined Benefit Plan, Amortization of Gain (Loss) Net income - Linde plc Net income - Linde plc Net Income – Linde plc Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Balance Sheet Location [Axis] Location, Statement of Financial Position, Balance [Axis] Segment Reconciling Items Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member] Restatement Determination Date: Restatement Determination Date [Axis] Schedule of Components of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Reclassifications to net income Other Comprehensive Income Defined Benefit Plan Reclassified To The Income Statement Other Comprehensive Income, Defined Benefit Plan Reclassified To The Income Statement Derivative term Derivative, Contract Term Fair value, assets Derivative assets Derivative Asset, Subject to Master Netting Arrangement, before Offset Damages sought, value Loss Contingency, Damages Sought, Value Non-U.S. borrowings Other International long-term debt borrowings [Member] -- None. No documentation exists for this element. -- OtherInternationalBankBorrowingsMember Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]