v3.22.4
Revenue (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disaggregation of Revenue [Line Items]      
Revenue $ 14,289.1 $ 14,289.4 $ 13,171.1
Media and production costs 725.1 731.1  
Contract assets and unbilled fees and costs 529.5 469.9  
Work in process: 1,254.6 1,201.0  
Customer advances 1,492.3 1,644.5  
North America      
Disaggregation of Revenue [Line Items]      
Revenue 7,856.0 7,709.7 7,577.1
UNITED STATES      
Disaggregation of Revenue [Line Items]      
Revenue 7,367.3 7,245.9  
Latin America      
Disaggregation of Revenue [Line Items]      
Revenue 329.0 296.1 275.4
Europe      
Disaggregation of Revenue [Line Items]      
Revenue 4,010.5 4,219.6 3,607.7
Middle East and Africa      
Disaggregation of Revenue [Line Items]      
Revenue 346.7 267.6 207.2
Asia-Pacific      
Disaggregation of Revenue [Line Items]      
Revenue 1,746.9 1,796.4 1,503.7
Advertising & Media      
Disaggregation of Revenue [Line Items]      
Revenue 7,424.7 7,959.3 7,511.4
Precision Marketing      
Disaggregation of Revenue [Line Items]      
Revenue 1,417.9 1,194.8 944.6
Commerce & Brand Consulting      
Disaggregation of Revenue [Line Items]      
Revenue 958.4 910.7 821.8
Experiential      
Disaggregation of Revenue [Line Items]      
Revenue 645.5 545.9 426.8
Execution & Support      
Disaggregation of Revenue [Line Items]      
Revenue 980.0 1,026.6 961.3
Public Relations      
Disaggregation of Revenue [Line Items]      
Revenue 1,545.8 1,391.7 1,310.9
Healthcare      
Disaggregation of Revenue [Line Items]      
Revenue $ 1,316.8 $ 1,260.4 $ 1,194.3