XML 14 R1.htm IDEA: XBRL DOCUMENT v3.20.4
Document and Entity Information Document
Feb. 09, 2021
Feb. 08, 2021
Entity Information [Line Items]    
Document Type 8-K  
Document Period End Date Feb. 09, 2021  
Entity Registrant Name Jones Lang LaSalle Incorporated  
Entity Central Index Key   0001037976
Amendment Flag   false
Entity Incorporation, State or Country Code MD MD
Entity File Number 001-13145  
Entity Tax Identification Number 36-4150422  
Entity Address, Address Line One 200 East Randolph Drive,  
Entity Address, City or Town Chicago,  
Entity Address, State or Province IL  
Entity Address, Postal Zip Code 60601  
City Area Code (312)  
Local Phone Number 782-5800  
Written Communications false  
Soliciting Material false  
Pre-commencement Tender Offer false  
Pre-commencement Issuer Tender Offer false  
Title of 12(b) Security Common Stock, par value $0.01  
Trading Symbol JLL  
Security Exchange Name NYSE  
Entity Emerging Growth Company false