XML 13 R2.htm IDEA: XBRL DOCUMENT v3.20.2
Cover Document
 9 Months Ended
Sep. 30, 2020
Document Information [Line Items]  
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Large Accelerated Filer
Entity Small Business false
Title of 12(b) Security Common Stock, par value $0.01
Entity File Number 1-13145
Entity Registrant Name Jones Lang LaSalle Incorporated
Document Type 10-Q
Entity Incorporation, State or Country Code MD
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
Trading Symbol JLL
Security Exchange Name NYSE
Entity Shell Company true
Document Period End Date Sep. 30, 2020
Document Transition Report false
Entity Shell Company false
Entity Emerging Growth Company false