v3.24.1.1.u2
Document and Entity Information Document and Entity Information
May 20, 2024
Cover [Abstract]  
Entity Central Index Key 0001069202
Entity Incorporation, State or Country Code DE
Title of 12(b) Security Common Stock, par value $0.01 per share
Trading Symbol LII
Security Exchange Name NYSE
Pre-commencement Issuer Tender Offer false
Pre-commencement Tender Offer false
Soliciting Material false
Written Communications false
Document Type 8-K
Entity Registrant Name LENNOX INTERNATIONAL INC
Entity Address, Address Line One 2140 LAKE PARK BLVD
Entity Address, City or Town RICHARDSON
Entity Address, Postal Zip Code 75080
Entity File Number 001-15149
Entity Tax Identification Number 42-0991521
City Area Code 972
Local Phone Number 497-5000
Amendment Flag false
Entity Emerging Growth Company false
Entity Address, State or Province TX
Document Period End Date May 20, 2024