Other Net [Abstract] Other Net [Abstract] Other, Net Other Nonoperating Income and Expense [Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] General Discussion of Pension and Other Postretirement Benefits [Abstract] Components of Pension and Postretirement Related Costs [Table] Statement [Table] Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans [Domain] Defined Benefit Plan and Other Postretirement Benefit Plan [Domain] Postretirement Benefit Costs [Member] Postretirement Benefit Costs [Member] Statement [Line Items] Statement [Line Items] Service cost Defined Benefit Plan, Service Cost Interest cost Defined Benefit Plan, Interest Cost Net amortization of prior service gains Defined Benefit Plan, Future Amortization of Prior Service Cost (Credit) Net amortization of plan net actuarial losses Defined Benefit Plan, Actuarial Gain (Loss) Total Defined Benefit Plan, Net Periodic Benefit Cost Share-based Compensation [Abstract] Share-Based Compensation Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Goodwill Disclosure [Abstract] Goodwill Disclosure [Abstract] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Americas [Member] Americas [Member] EMEIA [Member] EMEIA [Member] EMEIA [Member] Asia Pacific [Member] Asia Pacific [Member] Goodwill [Line Items] Goodwill [Line Items] Goodwill [Roll Forward] Goodwill [Roll Forward] December 31, 2013 (gross) Goodwill, Gross Acquisitions Goodwill, Period Increase (Decrease) Currency translation Goodwill, Translation Adjustments June 30, 2014 (gross) Accumulated impairment Goodwill, Impaired, Accumulated Impairment Loss Goodwill (net) Goodwill Goodwill impairment charge Goodwill, Impairment Loss Earnings Per Share [Abstract] Distributed shares Stockholders' Equity Note, Spinoff Transaction, Shares Distributed to Stockholders Stockholders' Equity Note, Spinoff Transaction, Shares Distributed to Stockholders Weighted-average number of basic shares Weighted Average Number of Shares Outstanding, Basic Shares issuable under incentive stock plans Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted average number of diluted shares Weighted Average Number of Shares Outstanding, Diluted Organization, Consolidation and Presentation of Financial Statements [Abstract] Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Segment Reporting [Abstract] Segment Reporting Information By Segment [Table] Segment Reporting Information By Segment [Table] Segment Reporting Information By Segment [Table] Business Segments [Axis] Segments [Axis] Reporting Segment [Domain] Segments [Domain] Unallocated Amount to Segment [Member] Segment Reconciling Items [Member] Net revenues Revenue, Net Segment operating income Segment Operating Income (Loss) Segment operating income is the measure of profit and loss that the Company’s chief operating decision maker uses to evaluate the financial performance of the business and as the basis for performance recviews, compensation and resource allocation. For these reasons, the Company believes that Segment operating income represents the most relevant measure of segment profit and loss. The Company may exclude certain charges or gains from Operating income to arrive at a Segment operating income that is a more meaningful measure of profit and loss upon within to base its operating decisions. Unallocated corporate expense Operating Expenses Operating income (loss) Operating Income (Loss) Interest expense Interest Expense Other (gain) loss, net Other Nonoperating Income (Expense) Earnings before income taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Condensed Financial Information of Parent Company Only Disclosure [Abstract] Condensed Cash Flow Statement [Table] Condensed Cash Flow Statement [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Parent Company [Member] Parent Company [Member] Subsidiary Issuer [Member] Subsidiary Issuer [Member] Guarantor Subsidiaries [Member] Guarantor Subsidiaries [Member] Other Subsidiaries [Member] Other Subsidiaries [Member] Other Subsidiaries [Member] Consolidation, Eliminations [Member] Consolidation, Eliminations [Member] Condensed Cash Flow Statements, Captions [Line Items] Condensed Cash Flow Statements, Captions [Line Items] Other investing activities, net Payments for (Proceeds from) Other Investing Activities Net cash provided by (used in) continuing operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash provided by (used in) discontinued operating activities Cash Provided by (Used in) Operating Activities, Discontinued Operations Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Capital expenditures Payments to Acquire Productive Assets Acquisition of businesses, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Proceeds from sale of property, plant and equipment Proceeds from Sale of Property, Plant, and Equipment Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Net debt proceeds (repayments) Proceeds from (Repayments of) Debt Net inter-company proceeds (payments) Net Intercompany Proceeds Payments The net cash inflow or outflow from the proceeds and repayments made on borrowings between intercompany entities. Dividends paid to ordinary shareholders DividendsPaid Cash outflow in the form of dividends to common shareholders (including intercompany) and noncontrolling interests, generally out of earnings. Dividends paid to noncontrolling interests Payments of Ordinary Dividends, Noncontrolling Interest Repurchase of ordinary shares Payments for Repurchase of Common Stock Net transfers from former Parent and affiliates Proceeds From Contributions From (Payments Of Distributions To) Former Parent and Affiliates Proceeds From Contributions From (Payments Of Distributions To) Former Parent and Affiliates Other financing activities, net Proceeds from (Payments for) Other Financing Activities Net cash used in continuing financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents - beginning of period Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents - end of period Statement of Cash Flows [Abstract] Statement [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Net earnings (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Discontinued operations, net of tax Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Adjustments to arrive at net cash provided by (used in) operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Amortization and Accretion, Net Changes in assets and liabilities and other non-cash items Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash provided by continuing operating activities Net cash used in discontinued operating activities Capital expenditures Increase (Decrease) in Restricted Cash Increase (Decrease) in Restricted Cash Acquisition of businesses, net of cash acquired Dividends paid to ordinary shareholders Payments of Ordinary Dividends, Common Stock UNITED STATES UNITED STATES Non-U.S. [Member] Non-United States [Member] Non-United States [Member] Pension Cost [Member] Pension Costs [Member] Service cost Expected return on plan assets Defined Benefit Plan, Expected Return on Plan Assets Net amortization of prior service costs Net periodic pension benefit cost Defined Benefit Plan Net Periodic Benefit Cost Before Curtailment Settlement Gains (Losses) The total amount of net periodic benefit cost for defined benefit plans for the period before curtailment or settlement gains or losses. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain or loss, prior service cost or credit, transition asset or obligation. Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments Defined Benefit Plan, Net Periodic Benefit Cost Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Restructuring Charges [Abstract] Changes In Restructuring Reserve [Table] Changes In Restructuring Reserve [Table] Changes In Restructuring Reserve [Table] Segments [Domain] Changes in Restructuring Reserve [Line Items] Changes in Restructuring Reserve [Line Items] Changes in Restructuring Reserve [Line Items] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] December 31, 2013 Restructuring Reserve, Current Additions Restructuring and Related Cost, Incurred Cost Cash and non-cash uses Restructuring Reserve Settled With Cash And Without Cash Amount of cash, or consideration other than cash, paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost. June 30, 2014 Derivative Instruments and Hedging Activities Disclosure [Abstract] Schedule of the Fair Values of Derivative Instruments Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of Derivatives Designated as Hedges Affecting Net Earning and AOCI Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Business Combinations [Abstract] Acquisitions Business Combination Disclosure [Text Block] Summary of Operations by Reportable Segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Condensed Financial Information of Parent Company Only Disclosure [Text Block] Condensed Financial Information of Parent Company Only Disclosure [Text Block] Accounting Policies [Abstract] Recent Accounting Pronouncements New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Changes in Goodwill Carrying Amounts Schedule of Goodwill [Table Text Block] Schedule of Quantifying Prior Year Misstatement Corrected in Current Year Financial Statements [Table] Schedule of Quantifying Prior Year Misstatement Corrected in Current Year Financial Statements [Table] Nature of Error [Axis] Nature of Error [Axis] Nature of Error [Domain] Nature of Error [Domain] Reclassification Between Other Investing Activities And Effect of Exchange Rate Changes on Cash and Cash Equivalents [Member] Reclassification Between Other Investing Activities And Effect of Exchange Rate Changes on Cash and Cash Equivalents [Member] Reclassification Between Other Investing Activities And Effect of Exchange Rate Changes on Cash and Cash Equivalents [Member] Quantifying Misstatement in Current Year Financial Statements [Line Items] Quantifying Misstatement in Current Year Financial Statements [Line Items] Revision made to correctly reflect other investing activities, net Quantifying Misstatement in Current Year Financial Statements, Amount Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Fair Value Disclosures [Abstract] Fair Value, Assets Measured on Recurring Basis [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Recurring fair value measurements [Member] Fair Value, Measurements, Recurring [Member] Financial Instruments not carried at fair value [Member] Estimate of Fair Value Measurement [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) [Member] Fair Value, Inputs, Level 2 [Member] Significant Unobservable Inputs (Level 3) [Member] Fair Value, Inputs, Level 3 [Member] Recurring fair value measurements [Abstract] Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract] Assets, fair value measurements [Abstract] Fair Value of Assets Measured on a Recurring Basis [Abstract] Fair Value of Assets Measured on a Recurring Basis [Abstract] Marketable Securities Marketable Securities Marketable securities Available-for-sale Securities Derivative instruments Derivative Asset, Fair Value, Gross Asset Total assets, fair value measurements Assets, Fair Value Disclosure, Recurring Liabilities, fair value measurements [Abstract] Fair Value of Liabilities Measured on a Recurring Basis [Abstract] [Abstract] Fair Value of Liabilities Measured on a Recurring Basis [Abstract] [Abstract] Derivative instruments Derivative Liability, Fair Value, Gross Liability Interest Rate Derivative Liabilities, at Fair Value Interest Rate Derivative Liabilities, at Fair Value Total liability, fair value measurements Financial and Nonfinancial Liabilities, Fair Value Disclosure Total debt Long-term Debt, Fair Value Total financial instruments not carried at fair value Liabilities not carried at fair value, fair value disclosure This element represents the aggregate of the liabilities reported on the balance sheet at period end not measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. Commitments And Contingencies [Table] Commitments And Contingencies [Table] Commitments And Contingencies [Table] Statement, Operating Activities Segment [Axis] Operating Activities [Axis] Segment, Operating Activities [Domain] Operating Activities [Domain] Segment, Discontinued Operations [Member] Discontinued Operations [Member] Expense for environmental remediation Environmental Remediation Expense Reserves for environmental matters Accrual for Environmental Loss Contingencies Reserves for environmental matters, current Accrued Environmental Loss Contingencies, Current Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Cash and cash equivalents Restricted cash Restricted Cash and Cash Equivalents, Current Accounts and notes receivable, net Receivables, Net, Current Costs in excess of billings on uncompleted contracts Costs in Excess of Billings, Current Inventories Inventory, Net Other current assets Other Assets, Current Assets held for sale Assets Held-for-sale, Current Total current assets Assets, Current Property, plant and equipment, net Property, Plant and Equipment, Net Goodwill Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Other noncurrent assets Other Assets, Noncurrent Total assets Assets LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Accounts payable Accounts Payable, Current Accrued expenses and other current liabilities Accrued Liabilities, Current Short-term borrowings and current maturities of long-term debt Debt, Current Total current liabilities Liabilities, Current Long-term debt Long-term Debt, Excluding Current Maturities Other noncurrent liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Ordinary shares Common Stock, Value, Issued Capital in excess of par value Additional Paid in Capital Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Total Allegion plc shareholders’ equity Stockholders' Equity Attributable to Parent Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Total equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and equity Liabilities and Equity Derivative [Table] Derivative [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Term Loan A Facility Due 2018 [Member] Term Loan A Facility Due 2018 [Member] Term Loan A Facility Due 2018 [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Secured Debt [Member] Secured Debt [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract Type [Domain] Derivative Contract [Domain] Interest Rate Swap Expiration September 2017 [Member] Interest Rate Swap Expiration September 2017 [Member] Interest Rate Swap Expiration September 2017 [Member] Interest Rate Swap Expiration December 2016 [Member] Interest Rate Swap Expiration December 2016 [Member] Interest Rate Swap Expiration December 2016 [Member] Interest Rate Swap [Member] Interest Rate Swap [Member] Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Notional amounts of currency derivatives Derivative, Notional Amount Deferred gain/loss, net of tax, included in accumulated other comprehensive income (AOCI) related to the fair value of the Company's currency derivatives designated as accounting hedges Currency derivatives expected to be reclassified into earnings over the next twelve months Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months Approximate maximum term of currency derivatives, in months Maximum Length of Time, Foreign Currency Cash Flow Hedge Principal amount of notes Debt Instrument, Face Amount Long-term debt Long-term Debt Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Discontinued Operations and Disposal Groups [Abstract] Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] Stockholders' Equity Note [Abstract] Reconciliation of Ordinary Shares Reconciliation of ordinary shares Reconciliation of ordinary shares Components Of Shareholders Equity Rollforward Components Of Shareholders Equity Rollforward [Text Block] Components Of Shareholders Equity Rollforward [Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Disclosure of Reclassification Amount Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Intangible Assets Disclosure [Abstract] Intangible Assets Disclosure [Abstract] Schedule of Acquired Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Table] Schedule of Acquired Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Table] Schedule of Acquired Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Completed technologies/patents [Member] Patents [Member] Customer relationships [Member] Customer Relationships [Member] Trademarks [Member] Trademarks [Member] Other Intangible Assets [Member] Other Intangible Assets [Member] Indefinite-lived Intangible Assets by Major Class [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Schedule of Acquired Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items] Schedule of Acquired Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items] [Line Items] for Schedule of Acquired Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Table] Finite-lived intangible assets, gross Finite-Lived Intangible Assets, Gross Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Net finite-lived intangible assets Finite-Lived Intangible Assets, Net Trademarks (indefinite-lived) Indefinite-Lived Intangible Assets (Excluding Goodwill) Total intangible assets, gross Intangible assets, excluding goodwill, gross Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date and before accumulated amortization and impairment charges. Intangible assets, net Amortization of intangible assets Amortization of Intangible Assets Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] 2014 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2015 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2016 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Five Restructuring Charges [Table] Restructuring Charges [Table] Restructuring Charges [Table] Restructuring Plan [Axis] Restructuring Plan [Axis] Restructuring Plan [Domain] Restructuring Plan [Domain] EMEIA 2014 Restructuring Plan [Member] EMEIA 2014 Restructuring Plan [Member] EMEIA 2014 Restructuring Plan [Member] Other Restructuring Plans [Member] Other Restructuring Plans [Member] Other Restructuring Plans [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Cost of Goods Sold [Member] cost of goods sold [Member] Refers to items included in financial statement line item cost of goods sold. [Member] Selling and Administrative Expenses [Member] selling and administrative expenses [Member] Refers to items included in financial statement line item Selling and administrative expenses [Member] Corporate and Other [Member] Corporate and Other [Member] Restructuring charges Schedule of Restructuring Charges Recorded Restructuring and Related Costs [Table Text Block] Schedule of Changes in Restructuring Reserve Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Interest income Investment Income, Interest Exchange gain (loss) Foreign Currency Transaction Gain (Loss), before Tax Other miscellaneous other nonoperating income expense miscellaneous other nonoperating income expense Other, net Foreign currency translation loss related to the devaluation of the Venezuelan Bolivar Foreign Currency Transaction Loss, before Tax Bolivars to U.S. dollar exchange rate Foreign Currency Exchange Rate, Translation Pension Plans [Member] Pension Plan, Defined Benefit [Member] Other Postretirement Benefit Plans [Member] Other Postretirement Benefit Plan, Defined Benefit [Member] Schedule of Net Periodic Benefit Cost Schedule of Net Benefit Costs [Table Text Block] Effective income tax rate (percent) Effective Income Tax Rate Reconciliation, Percent Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Cash Flow Hedging [Member] Cash Flow Hedging [Member] Nondesignated [Member] Not Designated as Hedging Instrument [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Derivatives designated as hedges, asset at fair value Foreign Currency Cash Flow Hedge Asset at Fair Value Derivatives designated as hedges, liability at fair value Foreign Currency Cash Flow Hedge Liability at Fair Value Interest Rate Derivative Assets, at Fair Value Interest Rate Derivative Assets, at Fair Value Derivatives not designated as hedges, asset at fair value Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value Derivatives not designated as hedges, liability at fair value Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value Derivative asset fair value Derivative liability fair value Debt Disclosure [Abstract] Debt and Credit Facilities Debt Disclosure [Text Block] Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Dividends declared per ordinary share (in dollars per share) Common Stock, Dividends, Per Share, Declared Recently Adopted Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Product Warranty Liability Schedule of Product Warranty Liability [Table Text Block] Share-Based Compensation Expense Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] Grants of Stock Options and RSUs Share Based Compensation Stock Option And Restricted Stock Units Granted [Text Block] Share Based Compensation Stock Option And Restricted Stock Units Granted [Text Block] Average fair value of stock options, assumptions Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Fair Value Measurement Fair Value Disclosures [Text Block] Condensed Cash Flow Statement [Table Text Block] Condensed Cash Flow Statement [Table Text Block] Condensed Balance Sheet [Table Text Block] Condensed Balance Sheet [Table Text Block] Condensed Statement Of Comprehensive Income [Table Text Block] Condensed Statement Of Comprehensive Income [Table Text Block] Condensed Statement Of Comprehensive Income [Table Text Block] Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Inventory, Net [Abstract] Major Classes Of Inventory MajorClassesOfInventory [Table Text Block] Carrying amount as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process. Also includes purchased parts that will be used as components of a finished product. Raw materials Inventory, Raw Materials, Gross Work-in-process Inventory, Work in Process, Gross Finished goods Inventory, Finished Goods, Gross Sub-total Inventory, Gross LIFO reserve Inventory, LIFO Reserve Total Business Segment Information Segment Reporting Disclosure [Text Block] Discontinued Operations [Abstract] Discontinued Operations [Abstract] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Groups, Including Discontinued Operations, Name [Domain] Disposal Groups, Including Discontinued Operations, Name [Domain] EMEIA Divestiture UK Door [Member] EMEIA Divestiture UK Door [Member] EMEIA Divestiture UK Door [Member] Other Divestitures [Member] Other Divestitures [Member] Other Divestitures [Member] 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] Disposal Group, Including Discontinued Operation, Revenue Disposal Group, Including Discontinued Operation, Revenue Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Discontinued operations, net of tax Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statements, Captions [Line Items] Condensed Balance Sheet Statements, Captions [Line Items] Current assets: Assets, Current [Abstract] Restricted Cash and Cash Equivalents Restricted Cash and Cash Equivalents Inventories Other current assets Costs In Excess Of Billings and Other Assets, Current Costs In Excess Of Billings and Other Assets, Current Accounts and notes receivable affiliates Due from Affiliate, Current Investment in affiliates Investments in and Advances to Affiliates, at Fair Value Intangible assets, net Intangible Assets, Net (Including Goodwill) Due from Affiliate, Noncurrent Due from Affiliate, Noncurrent Current liabilities: Liabilities, Current [Abstract] Accounts payable and accruals Accounts Payable and Accrued Liabilities, Current Accounts and note payable affiliates Due to Affiliate, Current Long-term debt Note payable affiliate Due to Affiliate, Noncurrent Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Other noncurrent liabilities Liabilities, Other than Long-term Debt, Noncurrent Equity: Stockholders' Equity Attributable to Parent [Abstract] Stockholders' Equity Attributable to Parent Total equity (deficit) Award Type [Axis] Award Type [Axis] Award Type [Domain] Equity Award [Domain] Stock options and Restricted Stock Units (RSUs) [Member] Stock options and RSUs [Member] Stock options and RSUs [Member] Performance Shares [Member] Performance Shares [Member] Vesting period, in years Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Maximum award level for eligible employees (in shares) Number Of Shares To Companys Maximum Award Level For Eligible Employees Number Of Shares To Companys Maximum Award Level For Eligible Employees Number of companies used in TSR comparison Share-Based Compensation Arrangement By Share-Based Payment Award, Total Shareholder Return, Number Of Companies In Comparison Group Share-Based Compensation Arrangement By Share-Based Payment Award, Total Shareholder Return, Number of Companies in Comparison Group TSR performance period Share-Based Compensation Arrangement By Share-Based Payment Award, Total Shareholder Return, Performance Period Share-based Compensation Arrangement by Share-based Payment Award, Total Shareholder Return, Performance Period Period for measuring average price for the index Share-Based Compensation Arrangement By Share-Based Payment Award, Total Shareholder Return, Change in Index Average Price, Measurement Period Share-based Compensation Arrangement by Share-based Payment Award, Total Shareholder Return, Change in Index Average Price, Measurement Period Percentage of awards applied to performance condition Percentage Of Awards Applied To Performance Condition Percentage of performance share awards upon which the performance condition was applied as laid out in the 2012 revisions to the company's incentive compensation agreement Percentage of awards applied to market condition Percentage of Awards Applied to Market Condition Percentage of performance share awards upon which the market condition was applied as laid out in the 2012 revisions to the company's incentive compensation agreement Fair Value, Assets Measured on Recurring and Nonrecurring Basis Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block] Goodwill Goodwill Disclosure [Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Allegion de Colombia [Member] Subsidiaries [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Schlage Lock de Colombia S.A. [Member] Schlage Lock de Colombia S.A. [Member] Schlage Lock de Colombia S.A. [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Cash payment Payments to Acquire Businesses, Gross Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Table] Interest Expense [Member] Interest Expense [Member] Derivative Instrument Risk [Axis] Currency Derivatives [Member] Foreign Exchange [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Condensed Financial Statements [Table] Condensed Financial Statements [Table] Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements, Captions [Line Items] Cost of goods sold Cost of Goods and Services Sold Selling and administrative expenses Selling, General and Administrative Expense Operating income Equity earnings (loss) in affiliates, net of tax Income (Loss) from Equity Method Investments Intercompany interest and fees Intercompany Interest And Fees The amount of interest expense, interest income, and fees incurred or earned during the period on intercompany debts, loans or other arrangements. Other (gain) loss, net Provision (benefit) for income taxes Income Tax Expense (Benefit) Earnings from continuing operations Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Net earnings Less: Net earnings attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Net earnings attributable to Allegion plc Net Income (Loss) Attributable to Parent Total comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Less: Total comprehensive income attributable to noncontrolling interests Comprehensive (Income) Loss, Net of Tax, Attributable to Noncontrolling Interest Total comprehensive income attributable to Allegion plc Comprehensive Income (Loss), Net of Tax, Attributable to Parent Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Other Restructuring [Member] Other Restructuring [Member] Other Comprehensive Income Location [Axis] Other Comprehensive Income Location [Axis] Other Comprehensive Income Location [Domain] Other Comprehensive Income Location [Domain] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring reserve, current Reconciliation Of Ordinary Shares [Table] Schedule Of Reconciliation Of Ordinary Shares [Table] Reconciliation of Ordinary Shares [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock [Member] Common Stock [Member] Reconciliation Of Ordinary Shares [Line Items] Reconciliation Of Ordinary Shares [Line Items] Reconciliation Of Ordinary Shares [Line Items] Increase (Decrease) In Ordinary Shares [Roll Forward] Increase (Decrease) In Ordinary Shares [Roll Forward] Increase (Decrease) In Ordinary Shares [Roll Forward] December 31, 2013 Common Stock, Shares, Outstanding Shares issued under incentive plans, net Stock Issued During Period, Shares, Share-based Compensation, Gross Treasury Stock, Shares, Acquired Treasury Stock, Shares, Acquired June 30, 2014 Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Stock Options [Member] Employee Stock Option [Member] Restricted Stock Units (RSUs) [Member] Deferred Compensation [Member] Deferred Compensation [Member] Share based compensation expense Allocated Share-based Compensation Expense Tax benefit Employee Service Share-based Compensation, Tax Benefit from Compensation Expense After-tax expense Allocated Share-based Compensation Expense, Net of Tax Schedule of Intangible Asset Net of Goodwill Schedule Of Intangible Asset Excluding Goodwill [Table Text Block] Schedule Of Intangible Asset Excluding Goodwill [Table Text Block] Number of reportable segments Number of Reportable Segments Share Based Compensation [Table] Share Based Compensation [Table] Share Based Compensation [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] RSUs [Member] Restricted Stock [Member] Equity awards, granted, in shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Weighted average fair value per award, in dollars per share Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Inventories Inventory Disclosure [Text Block] Company contributions Defined Benefit Plan, Contributions by Employer Additional contributions expected during the remainder of the year Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year Intangible Assets Intangible Assets Disclosure [Text Block] Schedule of Debt Schedule of Debt [Table Text Block] Shareholders' Equity [Member] Parent [Member] Noncontrolling Interest [Member] Noncontrolling Interest [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance at December 31: Net earnings (loss) Currency translation Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Change in value of marketable securities and derivatives qualifying as cash flow hedges, net of tax Other Comprehensive Income Unrealized Holding Gain Loss On Securities And Derivatives Arising During Period Net Of Tax Net of tax amount of unrealized holding gain (loss) before reclassification adjustments and transfers on available-for-sale securities. Net of tax and reclassification adjustments amount of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss). Pension and OPEB adjustments, net of tax Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax Total comprehensive income Share-based compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Dividends to noncontrolling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Dividends to ordinary shareholders Dividends, Common Stock, Cash Temporary Equity, Accretion to Redemption Value Temporary Equity, Accretion to Redemption Value Treasury Stock, Value, Acquired, Cost Method Treasury Stock, Value, Acquired, Cost Method Shares issued under incentive plans, net Stock Issued During Period, Value, Stock Options Exercised Other Stockholders' Equity, Other Distribution/contribution to/from Parent Company Stockholders' Equity, Increase (Decrease) Due To Distributions From (Contributions To) Parent Stockholders' Equity, Increase (Decrease) Due To Distributions From (Contributions To) Parent Balance at March 31: Equity [Abstract] Cash flow hedges and marketable securities [Member] Cash flow hedges and marketable securities [Member] Cash flow hedges and marketable securities [Member] Pension and OPEB Adjustments [Member] Accumulated Defined Benefit Plans Adjustment [Member] Foreign Currency Gain (Loss) [Member] Accumulated Translation Adjustment [Member] Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward] Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward] Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward] Balance at December 31: Other comprehensive income before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Amounts reclassified from accumulated other comprehensive income Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Tax (expense) benefit Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Balance at March 31: Restructuring Activities Restructuring and Related Activities Disclosure [Text Block] Movement in Standard Product Warranty Accrual [Roll Forward] Movement in Standard Product Warranty Accrual [Roll Forward] Balance at beginning of period Standard Product Warranty Accrual Reductions for payments Standard Product Warranty Accrual, Payments Accruals for warranties issued during the current period Standard Product Warranty Accrual, Warranties Issued Changes to accruals related to preexisting warranties Standard Product Warranty Accrual, Preexisting, Increase (Decrease) Translation Standard Product Warranty Accrual, Currency Translation, Increase (Decrease) Balance at end of period Schedule of Earnings Per Share Basic and Diluted Shares Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Senior Notes [Member] Senior Notes [Member] Subsidiaries [Member] Term Loan B Facility Due 2020 [Member] Term Loan B Facility Due 2020 [Member] Term Loan B Facility Due 2020 [Member] 5.75% Senior Notes Due 2021 [Member] Five Point Seven Five Percent Senior Notes Due 2021 [Member] Five Point Seven Five Percent Senior Notes Due 2021 [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Other debt, including capital leases, maturing in various amounts through 2016 Other Debt and Capital Leases Other Debt and Capital Leases Other short-term borrowings Other Short-term Borrowings Total debt Debt and Capital Lease Obligations Less: current portion of long term debt Stated interest rate for debt instruments Debt Instrument, Interest Rate, Stated Percentage Dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Risk-free rate of return Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected life, in years Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] London Interbank Offered Rate (LIBOR) [Member] London Interbank Offered Rate (LIBOR) [Member] Principal amount of notes Line of credit facility, borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Debt repayments Repayments of Long-term Debt Letters of credit outstanding amount Letters of Credit Outstanding, Amount Variable interest rate Debt Instrument, Basis Spread on Variable Rate Stated interest rate percentage, minimum Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum Stated interest rate percentage, maximum Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum Weighted-average interest rate Debt, Weighted Average Interest Rate Other, Net Schedule of Other Nonoperating Income (Expense) [Table Text Block] Earnings before income taxes [Member] Earnings before income taxes [Member] Earnings before income taxes [Member] Earnings from continuing operations [Member] Earnings from continuing operations [Member] Earnings from continuing operations [Member] Provision for income taxes [Member] Provision for income taxes [Member] Provision for income taxes [Member] Gains and losses on cash flow hedges Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax Tax effect on cash flow hedge reclassification adjustments Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax Cash flow hedge reclassification adjustments, net of tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax Prior-service (gains) costs Other Comprehensive (Income) Loss, Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service Cost (Credit), before Tax Amortization of actuarial (gains) losses Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), before Tax Settlements/curtailments reclassified to earnings Other comprehensive income loss pension and other postretirement benefits settlements and curtailments reclassified to earnings Reclassification of settlements and curtailments related to Pension and Other postretirement benefits from Other comprehensive income (loss) to earnings, before tax Defined benefit plan reclassification adjustments Reclassifications from Other comprehensive income loss of Defined benefit plan items Reclassifications from Other comprehensive income loss of Defined benefit plan items Tax effect on defined benefit plan reclassification adjustments Other comprehensive income loss reclassification adjustment on defined benefit plans tax Tax effect of total reclassification adjustments to Other Comprehensive Income (Loss) for defined benefit plan items including prior service cost, transition obligation, and net actuarial gain (loss) Defined benefit plan reclassification adjustments, net of tax other comprehensive income loss reclassification adjustment on defined benefit plans net of tax other comprehensive income loss reclassification adjustment on defined benefit plans net of tax Total reclassifications from Other comprehensive income (loss), net of tax Reclassifications from Other comprehensive income loss after tax Reclassifications from Other comprehensive income loss after tax Pensions and Postretirement Benefits Other than Pensions Pension and Other Postretirement Benefits Disclosure [Text Block] Earnings Per Share (EPS) Earnings Per Share [Text Block] Statement of Comprehensive Income [Abstract] Cost of goods sold Selling and administrative expenses Interest expense Other (gain) loss, net Provision for income taxes Less: Net earnings attributable to noncontrolling interests Amounts attributable to Allegion plc ordinary shareholders: Income Amounts Attributable to Parent, Disclosures [Abstract] Continuing operations Income (Loss) from Continuing Operations Attributable to Parent Discontinued operations Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Earnings per share attributable to Allegion plc ordinary shareholders: Basic: Earnings Per Share, Basic [Abstract] Continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Net earnings (loss) (in dollars per share) Earnings Per Share, Basic Diluted: Earnings Per Share, Diluted [Abstract] Continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Net earnings (loss) (in dollars per share) Earnings Per Share, Diluted Weighted-average shares outstanding Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Diluted (in shares) Equity Stockholders' Equity Note Disclosure [Text Block]