XML 78 R66.htm IDEA: XBRL DOCUMENT v3.25.1
Revenue from Contracts with Customers - Schedule of Disaggregation of Revenue from Contracts with Customers (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue $ 8,763 $ 7,822
Total Out of Scope of Topic 606 Revenue 147 113
Total Revenue 8,910 7,935
Facilities management    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 4,769 4,266
Project management    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 1,632 1,519
Advisory leasing    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 862 733
Advisory sales    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 360 325
Property management    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 582 428
Other portfolio services    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 81 93
Valuation    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 183 167
Commercial mortgage origination    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 43 30
Total Out of Scope of Topic 606 Revenue 45 28
Loan servicing    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 23 35
Total Out of Scope of Topic 606 Revenue 97 83
Investment management    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 154 149
Development services    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 74 77
Total Out of Scope of Topic 606 Revenue 5 2
Operating Segments    
Disaggregation of Revenue [Line Items]    
Total Revenue 8,910 7,935
Operating Segments | Advisory Services    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 1,552 1,383
Total Out of Scope of Topic 606 Revenue 142 111
Total Revenue 1,694 1,494
Operating Segments | Building Operations & Experience    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 5,355 4,700
Total Out of Scope of Topic 606 Revenue 0 0
Total Revenue 5,355 4,700
Operating Segments | Project Management    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 1,632 1,519
Total Revenue 1,632 1,519
Operating Segments | Real Estate Investments    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 228 226
Total Out of Scope of Topic 606 Revenue 5 2
Total Revenue 233 228
Operating Segments | Facilities management | Building Operations & Experience    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 4,769 4,266
Operating Segments | Facilities management | Project Management    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 0 0
Operating Segments | Project management | Building Operations & Experience    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 0 0
Operating Segments | Project management | Project Management    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 1,632 1,519
Operating Segments | Advisory leasing | Advisory Services    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 862 733
Operating Segments | Advisory sales | Advisory Services    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 360 325
Operating Segments | Property management | Advisory Services    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 0 0
Operating Segments | Property management | Building Operations & Experience    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue   434
Operating Segments | Other portfolio services | Advisory Services    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 81 93
Operating Segments | Valuation | Advisory Services    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 183 167
Operating Segments | Commercial mortgage origination | Advisory Services    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 43 30
Total Out of Scope of Topic 606 Revenue 45 28
Operating Segments | Loan servicing | Advisory Services    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 23 35
Total Out of Scope of Topic 606 Revenue 97 83
Operating Segments | Investment management | Real Estate Investments    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 154 149
Operating Segments | Development services | Real Estate Investments    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 74 77
Total Out of Scope of Topic 606 Revenue 5 2
Corporate, other and eliminations    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue (4) (6)
Total Out of Scope of Topic 606 Revenue 0 0
Total Revenue (4) (6)
Corporate, other and eliminations | Advisory leasing    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue 0 0
Corporate, other and eliminations | Property management    
Disaggregation of Revenue [Line Items]    
Topic 606 Revenue $ (4) $ (6)