v3.22.2.2
Document and Entity Information
Dec. 01, 2022
Document And Entity Information [Line Items]  
Entity Registrant Name Allegion plc
Amendment Flag false
Entity Central Index Key 0001579241
Document Type 8-K
Document Period End Date Dec. 01, 2022
Entity Incorporation State Country Code L2
Entity File Number 001-35971
Entity Tax Identification Number 98-1108930
Entity Address, Address Line One Block D
Entity Address, Address Line Two Iveagh Court
Entity Address, Address Line Three Harcourt Road
Entity Address, City or Town Dublin 2
Entity Address, Country IE
Entity Address, Postal Zip Code D02 VH94
City Area Code (353)(1)
Local Phone Number 2546200
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Fair Value Measured at Net Asset Value Per Share [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Ordinary shares, par value $0.01 per share
Trading Symbol ALLE
Security Exchange Name NYSE
Senior Notes [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 3.500% Senior Notes due 2029
Trading Symbol ALLE 3 1⁄2
Security Exchange Name NYSE